Tuesday, November 19, 2013

Laserium: 40th Anniversary



By Glenn A. Walsh
Reporting for SpaceWatchtower


Today (November 19) marks the 40th anniversary of the musical concert set to laser lights known as Laserium, once seen in many planetaria worldwide, including Pittsburgh's original Buhl Planetarium and Institute of Popular Science (a.k.a. Buhl Science Center). As Laserium is considered the first on-going laser show that was not part of a special or one-time event, it is also thought that Laserium launched the international laser display industry.

The first Laserium laser-light concert took place in the Griffith Observatory Planetarium, on a high hill in Griffith Park above the Hollywood section of Los Angeles, on 1973 November 19, produced by the new company known as Laser Images of Van Nuys, California. Laserium concerts went on to be shown in 46 other locations worldwide (and viewed by more than 20 million people), including in Buhl Planetarium's 425-seat Theater of the Stars four years later in the Summer of 1977. Taking advantage of scientifically-rooted entertainment programs in a scientifically-oriented venue, Laserium provided planetaria with new programming (mostly at night, after the conclusion of the day's last planetarium show, or when some planetaria were normally closed), a new and younger audience base, and a new revenue stream.

Apparently, there was some debate among Buhl Planetarium officials, as to whether to host Laserium at Buhl Planetarium. The late John Miller, who was Buhl Planetarium Floor Manager during the 1960s and 1970s, recalled an incident shortly following the conclusion of a Buhl Foundation Board of Directors meeting, which had been held in Buhl Planetarium's second-floor Library in late 1976 or early 1977. In Buhl Planetarium's first-floor Great Hall, near the entrance to the east staircase leading to the Library and also to the Astronomical Observatory, Buhl Planetarium Executive Director Carl F. Wapiennik was speaking with Buhl Foundation Board member (representing the City of Pittsburgh, as a then-member of Pittsburgh City Council; he is now a Judge on the Allegheny County Court of Common Pleas, Orphans Court Division) Frank J. Lucchino. As John Miller remembered it, Frank Lucchino said to Carl Wapiennik, in no uncertain terms, "You get that Laserium!"

Buhl Planetarium began, on 1977 July 14, showing Laserium six nights a week, except Monday evening when Buhl was normally closed. By 1982, Laserium was shown Thursday, Friday, Saturday, and Sunday evenings each week (as Buhl was now closed Monday, Tuesday, and Wednesday nights), as well as a family-oriented Laserium concert on weekend afternoons.

Evening shows were usually scheduled at 8:00, and 9:15 Thursday through Sunday, with additional shows at 10:30 and at 11:45 or midnight on Friday and Saturday. Weekend matinees were scheduled at 1:00 p.m. on Saturdays and at 3:00 p.m. on Sundays. During the Christmas holidays, a holiday-themed laser show was offered on weekends and also at 3:00 p.m. during the extended holiday hours of Christmas week.

In the first fiscal year of Laserium operation at Buhl Planetarium, 1977-1978, 119,308 people attended a Laserium concert; of this number, 118,150 were paid admissions. Additionally, 4,448 students in 75 school group visits also attended Laserium.

In the late 1980s, Laserium ticket prices were $5 for adults and $3.50 for children ages 3 to 12 for evening shows. Prices for family matinees (usually on weekends and during holiday periods) were $3.85 for adults and $2.50 for children ages 3 to 12. There was no special price for senior citizens. People could call a special pre-recorded telephone message (different from the regular Buhl Planetarium pre-recorded activities messages) to learn of each week's concerts including times and prices, at 412-321-5554.

A Laserium exhibit, explaining the science of lasers, was also displayed in Buhl Planetarium's Great Hall, near the entrance to the Theater of the Stars, for several years. 

The Laserium staff at Buhl Planetarium consisted of two people. The person operating the Laser projector (which was installed adjacent to the planetarium control console) was known as the Laserist. At Buhl Planetarium, the primary Laserist was Jon Hanson Shisler, who simply used Jon Hanson as his stage name. There were several other part-time Laserists, often regular Buhl Planetarium employees, who performed a Laserium concert when Jon Hanson had a day-off.


Unlike other types of shows, including some planetarium shows, Laserium shows are not pre-recorded. The Laserist manipulates the laser and performs the show, live, at the time of the presentation. The multicolored laser light is choreographed to the pre-recorded music, usually rock-and-roll songs for young people in the evening shows. However, the family matinee shows often included classical music and holiday-themed music.

The second staff member was the Star Pilot, the person who operated Buhl's historic Zeiss II Planetarium Projector (and sometimes other planetarium special effects projectors), to display a star field during the Laserium concerts. It is believed that the position title of "Star Pilot" originated at Buhl Planetarium. Usually Buhl technicians or planetarium lecturers were Star Pilots for these shows.

Of course, regular Buhl Planetarium ticket cashiers sold tickets for Laserium. Buhl Floor Aides took the tickets at the Planetarium entrance, as well as seating latecomers with a red-lighted flashlight, entering from the side exits. A Buhl Floor Aide often sat-in on each concert, to ensure that there were no problems in the Planetarium, Buhl Planetarium paid for a City police officer, on special detail for Laserium, to be on-site during all evening Laserium concerts, to ensure security of the staff and patrons.

As an entertainment program, it was necessary for Buhl Planetarium to charge City of Pittsburgh Amusement Tax for each Laserium ticket, which was not necessary for Buhl's planetarium and other science education programs. Usually, this tax was hidden in the overall ticket price.


At that time, the City Amusement Tax was ten percent of the ticket price. The City Amusement Tax was cut in half, with the formation of the Allegheny Regional Asset District (ARAD) in 1994, which used half of the proceeds of a new one-percent sales and use tax levied in Allegheny County to help fund museums, libraries, sports stadia, and other cultural entities or "regional assets." Prior to the formation of ARAD, Buhl Planetarium had been subsidized by the City and County governments, sporadically.

As planetarium shows could be scheduled for school groups at Buhl Planetarium, Laserium shows could also be scheduled for the school students to see. To avoid charging schools the City Amusement Tax, Buhl Planetarium added an educational segment, which explained the science of lasers and their many uses, at the beginning of each school group Laserium concert.

Pennsylvania Governor Dick Thornburgh and his family visited Buhl Planetarium on 1984 May 25 to see Laserium. The Governor had been invited that evening by Buhl Science Center President Joshua C. Whetzel, Jr., who was lobbying for state funding for construction of a new science center building on the North Shore of the Ohio River, across from Downtown Pittsburgh's Golden Triangle. The Commonwealth of Pennsylvania did provide significant funding ($17 million of $40 million cost) for this project, which resulted in construction of The Carnegie Science Center.


That Friday evening, the Governor and his family attended the 9:15 p.m. Laserium performance. As the Governor's wife, Ginny, entered Buhl first, she was almost charged the regular ticket price, as the ticket cashier did not recognize her.

At that time, Buhl Planetarium's exhibit galleries closed to the public on Friday evenings at 9:30 p.m. So, since the Laserium show lasted about an hour, the Governor and his family, normally, would not have been able to see any Buhl exhibits after the show.


However, one Buhl exhibit (located in the Great Hall close to the building entrance), by necessity, actually operated 24 /7 /365: the BioCorner Embryology Exhibit, where chicks (and occasionally ducklings) were hatched in front of visitors' eyes every weekend and displayed in brooders the rest of the week. So, when the Governor and his family left the Theater of the Stars after the Laserium show, the SpaceWatchtower blog author, Glenn A. Walsh (who had created the exhibit a year earlier and was Curator of the exhibit), suggested that they visit the BioCorner exhibit before leaving Buhl Planerarium.

Josh Whetzel (who had originated the concept of a Buhl embryology exhibit, after seeing a similar exhibit at Chicago's Museum of Science and Industry) agreed with this suggestion, and the Governor and his family spent the next ten minutes viewing the exhibit and petting, feeding, and holding the young chicks. This exhibit was of particular interest to the Governor's son, Peter, who has physical and intellectual disabilities.

While Laserium began the laser entertainment industry in 1973, competitors soon followed. Laserium continued performing shows at Los Angeles' Griffith Observatory until 2002. According to Laser Images, Laserium was the longest running theatrical attraction in the history of Los Angeles. Today, Laserium is shown at the Chabot Space and Science Center in Oakland, California, and Laserium recently returned to the St. Louis Science Center. Laserium also offers shows at their Van Nuys studios on select dates, and they continue to perform laser shows at special events.


On 1987 October 1, Buhl Science Center management decided to begin showing laser shows from a newer company, Audio Visual Imagineering (AVI) with Laserist John McLeroy.

According to a news article in the 1987 October 1 issue of The Pittsburgh Press, Buhl Media Relations Assistant Mary Pat McCarthy said, "AVI is developing newer shows. They're on the cutting edge of the laser world. It just seemed to be more up-to-date." The news report also stated that the AVI laser to be used at Buhl Planetarium was a krypton laser, "about four times as powerful as Laserium's" according to Mr. McLeroy.

However, change in laser companies again came to Buhl Planetarium, when Laser Fantasy International (LFI) started showing laser shows in the Theater of the Stars on 1990 March 15. According to an article in the "Weekender" section of that day's issue of The Pittsburgh Press, Laser Fantasy would use "precision beam technology of the 5-watt Argon laser and the 1.5-watt Krypton laser."

Pittsburgh's original Buhl Planetarium and Institute of Popular Science (a.k.a. Buhl Science Center), which had opened as America's fifth major planetarium on 1939 October 24, closed permanently to general public visitation on 1991 August 31. The new Carnegie Science Center, with a new Henry Buhl Jr., Planetarium and Observatory, opened a mile away, on the North Shore of the Ohio River, on 1991 October 5.

The original Buhl Planetarium building was then designated  the Allegheny Square Annex of The Carnegie Science Center, a tutorial center for Science Center science and computer classes, as well as teacher professional development programs (as The Carnegie Science Center was purposely designed without classrooms). However, in a budget-cutting move, the original Buhl Planetarium building was completely closed (despite protests of this author) in February of 1994. Space was, then, renovated on The Carnegie Science Center's third floor for classrooms.

The original Buhl Planetarium building, today, is part of a complex used by the Children's Museum of Pittsburgh. The complex also includes the historic 1897 original main post office for the City of Allegheny (which merged with the City of Pittsburgh in 1907) and a modern "Nightlight" building which connects the two historic structures. The Children's Museum is now, also, considering reuse of America's first publicly-funded Carnegie Library building, next-door, which was abandoned by The Carnegie Library of Pittsburgh (also protested by this author) after lightning struck the clock tower in 2006 (even though the City completely repaired the damages to the building).

Laser shows continue to be shown at The Carnegie Science Center. While they were shown in the Omnimax Theater in the first few years of the new Science Center's operation, they are now shown in the 156-seat Henry Buhl Jr. Planetarium. The laser shows are now operated by The Carnegie Science Center, using equipment built by Laser Fantasy International. According to the Science Center web site, the new laser technology, which uses less electricity than previous laser systems and does not require flowing water for cooling, will save approximately 300,000 gallons of water and more than 30,000 kilowatt-hours of electricity per year (which represents approximately 500,000 pounds of carbon dioxide emmissions).

November 19 marks another anniversary for Buhl Planetarium. On the evening of 1941 November 19, Buhl Planetarium's third-floor Astronomical Observatory (originally known as The People's Observatory) opened to the general public with the dedication of the rather unique 10-inch Siderostat-type Refractor Telescope. Noted Astronomer Harlow Shapley, then Director of the Harvard College Observatory, gave the keynote address. First light through the telescope was the ringed-planet Saturn.

The same evening a new planetarium show premiered, titled "Bombers by Starlight," on celestial navigation. And, in the lower-level Octagon Gallery a new exhibit opened, titled, "Can America Be Bombed?" This was two and one-half weeks before the surprise Japanese bombing of Pearl Harbor, Hawaii !



Early History of Laserium at Buhl Planetarium:
Link to first page >>> http://buhlplanetarium2.tripod.com/BuhlAnnualRpt1979-80p24.JPG
Link to second page >>> http://buhlplanetarium2.tripod.com/BuhlAnnualRpt1979-80p25.JPG

More on Laserium:
Link 1 >>> http://en.wikipedia.org/wiki/Laserium
Link 2 >>> http://www.laserium.com/

More on Buhl Planetarium's historic Theater of the Stars:
Link >>> http://buhlplanetarium3.tripod.com/BuhlZeissII.htm

More on Buhl Planetarium's BioCorner Embryology Exhibit:
Link >>> http://buhlplanetarium4.tripod.com/biocorner/historybiocorner.html  

More on Buhl Planetarium's historic Astronomical Observatory:
Link >>> http://spacewatchtower.blogspot.com/2011/11/70th-anniversary-buhl-planetarium.html

Special Thanks: Sharon Shanks, Planetarian Editor, and Scott Anderson, Laserium.

Source: Glenn A. Walsh Reporting for SpaceWatchtower, a project of Friends of the Zeiss.

Related Blog Post ---

Former Buhl Science Center President Dies - Joshua C. Whetzel, Jr. (2012 Jan. 29):
Link >>> http://spacewatchtower.blogspot.com/2012/01/buhl-science-ctr.html
 
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Send request to < spacewatchtower@planetarium.cc >..

gaw

Glenn A. Walsh, Project Director,
Friends of the Zeiss < http://buhlplanetarium.tripod.com/fotz/ >
Electronic Mail - < gawalsh@planetarium.cc >
About the SpaceWatchtower Editor/Author: < http://buhlplanetarium.tripod.com/#GAW >
SpaceWatchtower Blog: < http://spacewatchtower.blogspot.com/ >
Also see: South Hills Backyard Astronomers Blog: < http://shbastronomers.blogspot.com/ >
SPACE & SCIENCE NEWS, ASTRONOMICAL CALENDAR:
< http://buhlplanetarium.tripod.com/#news >
Twitter: < https://twitter.com/spacewatchtower >
Facebook: < http://www.facebook.com/pages/SpaceWatchtower/238017839577841?sk=wall >
Author of History Web Sites on the Internet --
* Buhl Planetarium, Pittsburgh:
  < http://www.planetarium.cc >
* Adler Planetarium, Chicago:
  < http://adlerplanetarium.tripod.com >
* Astronomer, Educator, Optician John A. Brashear:
  < http://johnbrashear.tripod.com >
* Andrew Carnegie & Carnegie Libraries:
  < http://www.andrewcarnegie.cc >
* Civil War Museum of Andrew Carnegie Free Library:
  < http://garespypost.tripod.com >
* Duquesne Incline cable-car railway, Pittsburgh:
  < http://inclinedplane.tripod.com >
* Public Transit:
  < http://andrewcarnegie2.tripod.com/transit >

Saturday, November 16, 2013

Leonid Meteors Peak Sun. Just After Full Beaver Moon




By Glenn A. Walsh
Reporting for SpaceWatchtower 

The Leonid Meteor Shower officially peaks at high Noon Eastern Standard Time on Sunday (17:00 Coordinated Universal Time), so obviously no one in North America will see meteors at that time. However, due to a Full Moon occurring less than two hours earlier, Leonid meteors will also be difficult to see late Saturday night--early Sunday morning and late Sunday night--early Monday morning.

Meteors from the Leonid Meteor Shower emanate from remnants of Comet Tempel-Tuttle. Leonid Meteor Storms occur once each 33 years (the last one was in 2009), when many meteors are visible. Other years, such as this year, the peak rate of meteors would be about 10 meteors per hour, under ideal conditions. And, with a Full Moon hampering the view, this year will not be ideal.

However, if you wish to try your luck with the Leonids this year, the best time to see any meteor shower is between local Midnight and Dawn, when the Earth is actually rotating into the meteor shower. The Leonids are so named because most meteors appear to radiate from the Constellation Leo the Lion. However, during any meteor shower, meteors can appear in any part of the sky at any time.

Telescopes and binoculars are of little use for finding meteors. Such optical devices restrict the field-of-view, thus that you could easily miss a lot of meteors, and the chance that you could observe a meteor with a telescope or binoculars is not very good. The best way to look for meteors is to lie down on the ground, in an area with an unobstructed view of most of the sky. Then, just keep scanning throughout the sky until you see a meteor.

The Full Moon of November, in the Northern Hemisphere, is generally known as the Beaver Moon. This was the time when Native Americans set-out beaver traps, before creeks and swamps froze-over, to ensure a good supply of warm furs for the coming Winter. Although beavers do not hibernate, by the following month the beavers would be in their lodges for the Winter, difficult for hunters to trap.

This beaver fur was its most usable at this time of year, both waterproof and warm. The furs also provided a special oil, used as a hair protector. The beaver was revered by the Native Americans, spiritually.

While most people consider the Full Moon as the Beaver Moon, the Native Americans actually considered the whole Moon cycle (all four Moon phases) as the Beaver Moon (i.e. the Beaver Month for the 28.5-day lunar cycle).

Other researchers believe the Beaver Moon name came from the fact that beavers, themselves, are active building water dams,  preparing for Winter.

The Beaver Moon occurs this year on Sunday, 2013 November 17 at 10:16 a.m. EST (15:16 Coordinated Universal Time).

This month's Full Moon sometimes is also referred to as the Frost or Frosty Moon. And, some Indian tribes referred to the November Full Moon as the Deer-Mating Moon or the Fur-Pelts Moon.

For years when the Harvest Moon occurs in October (when the October Full Moon date is closer to the Autumnal Equinox than the September Full Moon date), the November Full Moon is then known as the Hunter's Moon. However, this was not the case in 2013.

In the Southern Hemisphere, the Full Moon of November is known as the Corn Moon, Milk Moon, Flower Moon, and Hare Moon.

More on How to make the most of a low-key Leonid meteor shower:
Link >>> http://www.nbcnews.com/science/how-make-most-low-key-leonid-meteor-shower-2D11603441

More on the Leonid Meteor Shower:
Link >>> http://en.wikipedia.org/wiki/Leonid_meteor_shower

More on Comet Tempel-Tuttle:
Link >>> http://en.wikipedia.org/wiki/55P/Tempel-Tuttle

More on Full Moon names ---
Link 1 >>> http://earthsky.org/astronomy-essentials/full-moon-names
Link 2 >>> http://en.wikipedia.org/wiki/Full_moon#Harvest_and_Hunter.27s_moons
Link 3 >>> http://www.farmersalmanac.com/full-moon-names/

Source: Glenn A. Walsh Reporting for SpaceWatchtower, a project of Friends of the Zeiss.

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Send request to < spacewatchtower@planetarium.cc >..

gaw

Glenn A. Walsh, Project Director,
Friends of the Zeiss < http://buhlplanetarium.tripod.com/fotz/ >
Electronic Mail - < gawalsh@planetarium.cc >
About the SpaceWatchtower Editor/Author: < http://buhlplanetarium.tripod.com/#GAW >
SpaceWatchtower Blog: < http://spacewatchtower.blogspot.com/ >
Also see: South Hills Backyard Astronomers Blog: < http://shbastronomers.blogspot.com/ >
SPACE & SCIENCE NEWS, ASTRONOMICAL CALENDAR:
< http://buhlplanetarium.tripod.com/#news >
Twitter: < https://twitter.com/spacewatchtower >
Facebook: < http://www.facebook.com/pages/SpaceWatchtower/238017839577841?sk=wall >
Author of History Web Sites on the Internet --
* Buhl Planetarium, Pittsburgh:
  < http://www.planetarium.cc >
* Adler Planetarium, Chicago:
  < http://adlerplanetarium.tripod.com >
* Astronomer, Educator, Optician John A. Brashear:
  < http://johnbrashear.tripod.com >
* Andrew Carnegie & Carnegie Libraries:
  < http://www.andrewcarnegie.cc >
* Civil War Museum of Andrew Carnegie Free Library:
  < http://garespypost.tripod.com >
* Duquesne Incline cable-car railway, Pittsburgh:
  < http://inclinedplane.tripod.com >
* Public Transit:
  < http://andrewcarnegie2.tripod.com/transit >

Wednesday, November 13, 2013

Time Travel Into Past Not Possible Says Philosophy Professor


by

Fanciful ideas of time travel to the past were dispelled by modern philosopher Ned Markosiah at Tuesday night’s (October 29) “Philosophy Today” lecture at the University of Alabama.

“So my argument is that time travel to the past is not possible if a certain theory of time is true. Namely, the dynamic theory of time, which I do think is true,” Markosian, a philosophy professor at Western Washington University, said. “So, I do think time travel to the past is not possible. As for time travel to the future, that could still be possible.”

The talk compared two competing schools of thought about time: static time and dynamic time.
According to static time, all times are equally real. So what happened a few days ago still exists in the same way as what is happening right now.

According to dynamic time, time is like a moving spotlight that shines on certain moments, and only the moments that are under the light exist. The spotlight keeps moving and cannot be stopped, just as time cannot be stopped.

Markosian said time travel to the past is impossible according to dynamic time theory for several reasons.

More - Link >>> http://cw.ua.edu/2013/10/30/visiting-philosopher-declares-time-travel-to-past-impossible/

Source: The Crimson White of the University of Alabama.

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gaw

Glenn A. Walsh, Project Director,
Friends of the Zeiss < http://buhlplanetarium.tripod.com/fotz/ >
Electronic Mail - < gawalsh@planetarium.cc >
About the SpaceWatchtower Editor/Author: < http://buhlplanetarium.tripod.com/#GAW >
SpaceWatchtower Blog: < http://spacewatchtower.blogspot.com/ >
Also see: South Hills Backyard Astronomers Blog: < http://shbastronomers.blogspot.com/ >
SPACE & SCIENCE NEWS, ASTRONOMICAL CALENDAR:
< http://buhlplanetarium.tripod.com/#news >
Twitter: < https://twitter.com/spacewatchtower >
Facebook: < http://www.facebook.com/pages/SpaceWatchtower/238017839577841?sk=wall >
Author of History Web Sites on the Internet --
* Buhl Planetarium, Pittsburgh:
  < http://www.planetarium.cc >
* Adler Planetarium, Chicago:
  < http://adlerplanetarium.tripod.com >
* Astronomer, Educator, Optician John A. Brashear:
  < http://johnbrashear.tripod.com >
* Andrew Carnegie & Carnegie Libraries:
  < http://www.andrewcarnegie.cc >
* Civil War Museum of Andrew Carnegie Free Library:
  < http://garespypost.tripod.com >
* Duquesne Incline cable-car railway, Pittsburgh:
  < http://inclinedplane.tripod.com >
* Public Transit:
  < http://andrewcarnegie2.tripod.com/transit >

Saturday, November 9, 2013

Huge Sunspot Group Faces Earth w/ X-Class Flares

Monster sunspot group 1890 now faces Earth. Taken on Nov. 8, 2013. Credit and copyright: Ron Cottrell.

Monster sunspot group 1890 now faces Earth. Taken on Nov. 8, 2013. Credit and copyright: Ron Cottrell.

The Sun is finally acting like it’s in solar maximum. Our Sun has emitted dozens of solar flares since Oct. 23, 2013, with at least six big X-class flares. On Friday morning (Coordinated Universal Time), it blasted out a X1.1 flare at 04:32 UT (11:32 p.m. EST on Nov. 7, 2013). While old Sol had been fairly quiet for the time where it was supposed to be active in its normal 11-year cycle, only recently has activity ramped up with increased flares and sunspots.

Speaking of sunspots, a huge group designated AR 1890 has turned to face Earth. This sunspot has a trend of producing very brief flares. The X1-flare today was no exception as it lasted barely a minute.

 More - Link >>> http://www.universetoday.com/106278/solar-activity-ramps-up-as-giant-sunspot-group-turns-to-face-earth/

Source: UniverseToday.com .

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gaw

Glenn A. Walsh, Project Director,
Friends of the Zeiss < http://buhlplanetarium.tripod.com/fotz/ >
Electronic Mail - < gawalsh@planetarium.cc >
About the SpaceWatchtower Editor/Author: < http://buhlplanetarium.tripod.com/#GAW >
SpaceWatchtower Blog: < http://spacewatchtower.blogspot.com/ >
Also see: South Hills Backyard Astronomers Blog: < http://shbastronomers.blogspot.com/ >
SPACE & SCIENCE NEWS, ASTRONOMICAL CALENDAR:
< http://buhlplanetarium.tripod.com/#news >
Twitter: < https://twitter.com/spacewatchtower >
Facebook: < http://www.facebook.com/pages/SpaceWatchtower/238017839577841?sk=wall >
Author of History Web Sites on the Internet --
* Buhl Planetarium, Pittsburgh:
  < http://www.planetarium.cc >
* Adler Planetarium, Chicago:
  < http://adlerplanetarium.tripod.com >
* Astronomer, Educator, Optician John A. Brashear:
  < http://johnbrashear.tripod.com >
* Andrew Carnegie & Carnegie Libraries:
  < http://www.andrewcarnegie.cc >
* Civil War Museum of Andrew Carnegie Free Library:
  < http://garespypost.tripod.com >
* Duquesne Incline cable-car railway, Pittsburgh:
  < http://inclinedplane.tripod.com >
* Public Transit:
  < http://andrewcarnegie2.tripod.com/transit >

Thursday, November 7, 2013

Asteroid w/ 6 Comet-like Tails Seen for 1st Time

Astronomers viewing our solar system's asteroid belt with NASA's Hubble Space Telescope have seen for the first time an asteroid with six comet-like tails of dust. Designated P/2013 P5, the asteroid resembles a rotating lawn sprinkler.

"We were literally dumbfounded when we saw it," said lead investigator David Jewitt of the University of California at Los Angeles. "Even more amazing, its tail structures change dramatically in just 13 days as it belches out dust. That also caught us by surprise. It's hard to believe we’re looking at an asteroid."

splash
This NASA Hubble Space Telescope set of images reveals a never-before-seen set of six comet-like tails radiating from a body in the asteroid belt, designated P/2013 P5.
 
Jewitt leads a team whose research paper appears online in the Nov. 7 issue of the Astrophysical Journal Letters.

P/2013 P5 has been ejecting dust periodically for at least five months. Astronomers believe it is possible the asteroid's rotation rate increased to the point where its surface started flying apart. They do not believe the tails are the result of an impact with another asteroid because they have not seen a large quantity of dust blasted into space all at once.

More - Link >>> http://science.nasa.gov/science-news/science-at-nasa/2013/07nov_6tails/

Source: NASA Science News.

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gaw

Glenn A. Walsh, Project Director,
Friends of the Zeiss < http://buhlplanetarium.tripod.com/fotz/ >
Electronic Mail - < gawalsh@planetarium.cc >
About the SpaceWatchtower Editor/Author: < http://buhlplanetarium.tripod.com/#GAW >
SpaceWatchtower Blog: < http://spacewatchtower.blogspot.com/ >
Also see: South Hills Backyard Astronomers Blog: < http://shbastronomers.blogspot.com/ >
SPACE & SCIENCE NEWS, ASTRONOMICAL CALENDAR:
< http://buhlplanetarium.tripod.com/#news >
Twitter: < https://twitter.com/spacewatchtower >
Facebook: < http://www.facebook.com/pages/SpaceWatchtower/238017839577841?sk=wall >
Author of History Web Sites on the Internet --
* Buhl Planetarium, Pittsburgh:
  < http://www.planetarium.cc >
* Adler Planetarium, Chicago:
  < http://adlerplanetarium.tripod.com >
* Astronomer, Educator, Optician John A. Brashear:
  < http://johnbrashear.tripod.com >
* Andrew Carnegie & Carnegie Libraries:
  < http://www.andrewcarnegie.cc >
* Civil War Museum of Andrew Carnegie Free Library:
  < http://garespypost.tripod.com >
* Duquesne Incline cable-car railway, Pittsburgh:
  < http://inclinedplane.tripod.com >
* Public Transit:
  < http://andrewcarnegie2.tripod.com/transit >

Tuesday, November 5, 2013

Saving Library Materials: "Great Depression Mentality" ???

http://andrewcarnegie.tripod.com/Allegheny-Clocktower.JPG

Rising above the trees of Allegheny Square is the clocktower of America's first
publicly-funded Carnegie Library, the original Allegheny Regional Branch of
The Carnegie Library of Pittsburgh (originally the Carnegie Free Library of Allegheny)
which opened in the then-independent City of Allegheny (now Pittsburgh's North Side)
in 1890. After lightning struck the clocktower in 2006, and even though the City
repaired all damages, The Carnegie Library of Pittsburgh abandoned the original
building and built a new, smaller branch library three blocks north on Federal Street.
The Children's Museum of Pittsburgh is now considering reuse of the library building.
(Image Source: Friends of the Zeiss; Photographer: Lynne S. Walsh)
More on the history of the Carnegie Free Library of Allegheny:
Link >>> http://andrewcarnegie2.tripod.com/photoalbumAlleghenyReg.htm

By Glenn A. Walsh
Reporting for SpaceWatchtower

The reuse of library space for programming, rather than to store library materials, was one of the themes mentioned by Allegheny County Library Association (ACLA) Executive Director Marilyn Jenkins, during her annual budget presentation before the Board of Directors of the Allegheny Regional Asset District (ARAD) on August 20. She noted, approvingly, that some libraries were now reusing library space, which once contained book stacks, for programming for teenagers. In her statement, she disparaged older librarians, who she said had a "Great Depression mentality," for their reluctance to discard library materials and reuse the space for programming.

Glenn A. Walsh, former Life Trustee of the Andrew Carnegie Free Library and Music Hall in Carnegie, Pennsylvania, found this statement appalling. Hence, Mr. Walsh delivered the following statement before the Board of Directors of the Allegheny Regional Asset District, at the District's annual public hearing on October 29:




Statement before the     Glenn A. Walsh
Annual Hearing of           P.O. Box 1041
   the Board of                   Pittsburgh, Pennsylvania 15230-1041 U.S.A.
 Directors of the               Telephone: 412-561-7876
 Allegheny Regional        Electronic Mail: < gaw@andrewcarnegie.cc >
   Asset District                 Internet Site: < http://www.andrewcarnegie.cc >
 2013 October 29                 Blog: < http://spacewatchtower.blogspot.com >

Good afternoon. I am Glenn A. Walsh, 633 Royce Avenue, Mt. Lebanon. From 1995 to 2000, I was a Life Trustee on the Board of Trustees of the Andrew Carnegie Free Library and Music Hall in Carnegie, Pennsylvania, and I author a web site on the History of Andrew Carnegie and Carnegie Libraries at < www.andrewcarnegie.cc >. Today, I am speaking as a private citizen representing no organization.

I was quite troubled, during your annual budget hearings, when the Executive Director of the Allegheny County Library Association spoke disparagingly about some librarians who she said had a “Great Depression mentality” regarding their reluctance to discard library materials.  I wonder if she has forgotten the primary purpose of a library is to hold and maintain published materials of interest to a wide variety of audiences.

When I was a Library Trustee, I sought and received the donation of several additional book stacks, so our small library did not have to weed as many materials out of the collection. At the same time, a reference librarian told me that many older books, magazines, and journals had been discarded from Carnegie Library’s Allegheny Regional Branch. Are all of these discarded materials now available on-line or on microfilm in Allegheny County? I doubt it.

As a former Library Trustee, I am fully aware of the space and financial limitations of public libraries. However, the published information they have acquired and preserved over years and decades should not be discarded simply due to lack of space or funding. 

I ask that the Allegheny Regional Asset District work with public libraries, and perhaps even academic libraries, to plan a special repository for published materials that community libraries can no longer host. Such a repository should include at least one copy of every published material, in whatever media is most efficient, if such a material can no longer be retained at any community library in Allegheny County.

I would be happy to assist with any such plan.

gaw


As an addendum, I would like to recognize and again thank the public libraries which donated book stacks and other materials to the Andrew Carnegie Free Library and Music Hall in the late 1990s:

* Mount Lebanon Public Library - Donated surplus book stacks, when their library closed for an expansion project.

* Baldwin Township Public Library - Donated book stacks and books when, regrettably, their library had to close permanently.

* Robinson Township Public Library - When the first attempt to establish a public library in Robinson Township failed, the book stacks and other materials were donated to the Andrew Carnegie Free Library and Music Hall, which is patronized by Robinson Township residents. Some years later, the second attempt to establish a public library in Robinson Township was successful.

* Upper Saint Clair Public Library - Donated several brand-new computer carrels, for which their library had no use.

Source: Glenn A. Walsh Reporting for SpaceWatchtower, a project of Friends of the Zeiss.

Related Blog Posts ---

Carnegie Library Bldg. May Be Reused by Children's Museum  (2013 Sept. 3):

Link >>> http://spacewatchtower.blogspot.com/2013/09/carnegie-library-bldg-may-be-reused-by.html


Buhl Community Park at Allegheny Square Opens  (2012 June 25):

Link >>> http://spacewatchtower.blogspot.com/2012/06/buhl-community-park-at-allegheny-square.html 


Want to receive SpaceWatchtower blog posts in your inbox ?
Send request to < spacewatchtower@planetarium.cc >..

gaw

Glenn A. Walsh, Project Director,
Friends of the Zeiss < http://buhlplanetarium.tripod.com/fotz/ >
Electronic Mail - < gawalsh@planetarium.cc >
About the SpaceWatchtower Editor/Author: < http://buhlplanetarium.tripod.com/#GAW >
SpaceWatchtower Blog: < http://spacewatchtower.blogspot.com/ >
Also see: South Hills Backyard Astronomers Blog: < http://shbastronomers.blogspot.com/ >
SPACE & SCIENCE NEWS, ASTRONOMICAL CALENDAR:
< http://buhlplanetarium.tripod.com/#news >
Twitter: < https://twitter.com/spacewatchtower >
Facebook: < http://www.facebook.com/pages/SpaceWatchtower/238017839577841?sk=wall >
Author of History Web Sites on the Internet --
* Buhl Planetarium, Pittsburgh:
  < http://www.planetarium.cc >
* Adler Planetarium, Chicago:
  < http://adlerplanetarium.tripod.com >
* Astronomer, Educator, Optician John A. Brashear:
  < http://johnbrashear.tripod.com >
* Andrew Carnegie & Carnegie Libraries:
  < http://www.andrewcarnegie.cc >
* Civil War Museum of Andrew Carnegie Free Library:
  < http://garespypost.tripod.com >
* Duquesne Incline cable-car railway, Pittsburgh:
  < http://inclinedplane.tripod.com >
* Public Transit:
  < http://andrewcarnegie2.tripod.com/transit >

Saturday, November 2, 2013

Partial Sunrise Solar Eclipse Sunday Morning

SUNDAY GOOD MORNING TO THE SUN AND MOON—TOGETHER AGAIN

File:SolarEclipse2013Nov03H.GIF
(Image Sources: NASA, Wikipedia.org )

By Francis G. Graham
Professor Emeritus of Physics
Kent State University

Reporting for SpaceWatchtower
                         

Eclipse of the Sun / Solar Eclipse:
Tips For Safe Viewing

 

(Following Professor Graham's article is an addendum for East Coast North American viewers)


There will be an eclipse of the Sun on Sunday morning, and part of it will be visible from Pittsburgh.

General Eclipse Situation

This will be an Annular-Total , or Hybrid, eclipse, total in most places but annular near the ends. An annular eclipse is an eclipse where the Moon, due to its increased distance, does not cover the Sun completely. For most of the eclipse, the 4000-mile radius of the Earth is sufficient to project people on the eclipse path into totality.

The eclipse will begin in the western Atlantic Ocean 10:04:25 UT, which is 5:04 AM, Eastern Standard Time. The Sun will of course not have arisen yet in Pittsburgh. The shadow will proceed across the Atlantic to a maximum point just off the coast of Liberia, Africa; then it will continue on and make landfall in Gabon. It will cross the Republic of the Congo and then the northern Democratic Republic of the Congo. The shadow will continue to Uganda and Kenya, and leave the Earth in Ethiopia, around 15:28:13 UT (10:28 AM Eastern Standard Time).

The eclipse will not be visible at all, west from a line connecting Cleveland with Portsmouth, Ohio and down to Atlanta, Georgia and Tallahasseee. The farther east you are to watch the Sunrise, the better.

The Pittsburgh Eclipse Experience

From Pittsburgh, Pennsylvania a limited eclipse is visible but not much. It will be almost over as soon as the Sun rises on the southeastern horizon!

The eclipse will start in Pittsburgh before the Sun is above the horizon, at 5:16:45 Eastern Standard Time. The Sun will be clear above a good flat east-southeast horizon about 6:56 AM, depending on how far east or west you are in the greater Pittsburgh area. Just fifteen minutes later, at 7:09:29 AM Eastern Standard Time, the eclipse will end!! The Sun at that time will then be only two degrees above the horizon as seen from Pittsburgh!

If you want to see this eclipse from Pittsburgh, be sure to find a place where you have a very flat horizon to the east-southeast under clear skies. Also be sure to set your clock back one hour; November 3 at 2 AM is the time switch to Eastern Standard Time from Eastern Daylight Time.

Please let me know if you observed this eclipse or tried to, and how it went. (Information can be sent to the following address, which will be forwarded to Professor Graham: fotz@planetarium.cc )

Source: Francis G. Graham, Professor Emeritus of Physics, Kent State University
Reporting for SpaceWatchtower, a project of Friends of the Zeiss.
Professor Graham was also a Planetarium Lecturer and Observatory Observer at Pittsburgh's original Buhl Planetarium and Institute of Popular Science in the  late 1970s and the 1980s, and he serves on the Steering Committee of Friends of the Zeiss.

Eclipse of the Sun / Solar Eclipse:
Tips For Safe Viewing

 

Addendum: For East Coast North American Viewers

By Glenn A. Walsh, Reporting for SpaceWatchtower

 

While people viewing the November 3 solar eclipse in Pittsburgh or eastern Ohio will see a very slight partial eclipse, people near the eastern coast of North America will be treated to a larger partial eclipse of the Sun, weather and clouds permitting. Here are some percentages of obscuration of the Sun, by the Moon, at maximum eclipse for select cities:

* New York: 48 percent
* Boston: 54 percent
* Philadelphia: 44 percent
* Washington: 35 percent
* Miami: 36 percent
* Montreal: 32 percent
* Toronto: 10 percent

In all cases, the eclipse is in progress at local sunrise, and the eclipse ends just about 15 to 20 minutes later. Maximum eclipse occurs around 7:00 a.m. Eastern Standard Time, or perhaps a few minutes earlier (do not forget to reset your clocks, as Daylight Saving Time ends at 2:00 a.m. Eastern Daylight Time, which becomes 1:00 a.m. Eastern Standard Time).

You will need an unobstructed view of the Sun, shortly after sunrise, to see this eclipse. Of course, clouds and inclement weather can also obstruct the view of an eclipse.

 

Remember--NEVER, NEVER, NEVER look directly at the Sun or a solar eclipse with a telescope, binoculars, or any other optical device--it would cause PERMANENT BLINDNESS INSTANTLY. Looking directly at the Sun or a solar eclipse with the naked-eye could also cause eye damage.

 

There are no nerve cells in the eyes, so eye damage could occur while the viewer feels no pain !!!

 

Click the following link for tips on how to view a solar eclipse or eclipse of the Sun safely:

 

Eclipse of the Sun / Solar Eclipse:
Tips For Safe Viewing


Other helpful links for information on the November 3 eclipse ---

NASA Eclipse Web Site: Link >>> http://eclipse.gsfc.nasa.gov/SEgoogle/SEgoogle2001/SE2013Nov03Hgoogle.html

EarthSky.org: Link >>> http://earthsky.org/astronomy-essentials/get-ready-hybrid-solar-eclipse-on-november-3

Space.com: Link >>> http://www.space.com/23419-hybrid-solar-eclipse-visibility-images-november-3-2013.html

Source: Glenn A. Walsh, Reporting for SpaceWatchtower, a project of Friends of the Zeiss.

Want to receive SpaceWatchtower blog posts in your inbox ?
Send request to < spacewatchtower@planetarium.cc >..

gaw

Glenn A. Walsh, Project Director,
Friends of the Zeiss < http://buhlplanetarium.tripod.com/fotz/ >
Electronic Mail - < gawalsh@planetarium.cc >
About the SpaceWatchtower Editor/Author: < http://buhlplanetarium.tripod.com/#GAW >
SpaceWatchtower Blog: < http://spacewatchtower.blogspot.com/ >
Also see: South Hills Backyard Astronomers Blog: < http://shbastronomers.blogspot.com/ >
SPACE & SCIENCE NEWS, ASTRONOMICAL CALENDAR:
< http://buhlplanetarium.tripod.com/#news >
Twitter: < https://twitter.com/spacewatchtower >
Facebook: < http://www.facebook.com/pages/SpaceWatchtower/238017839577841?sk=wall >
Author of History Web Sites on the Internet --
* Buhl Planetarium, Pittsburgh:
  < http://www.planetarium.cc >
* Adler Planetarium, Chicago:
  < http://adlerplanetarium.tripod.com >
* Astronomer, Educator, Optician John A. Brashear:
  < http://johnbrashear.tripod.com >
* Andrew Carnegie & Carnegie Libraries:
  < http://www.andrewcarnegie.cc >
* Civil War Museum of Andrew Carnegie Free Library:
  < http://garespypost.tripod.com >
* Duquesne Incline cable-car railway, Pittsburgh:
  < http://inclinedplane.tripod.com >
* Public Transit:
  < http://andrewcarnegie2.tripod.com/transit >