Latest Reflecting telescope Stories

2011-12-21 14:00:00

This year's hot gift is the Porter Garden Telescope by Telescopes of Vermont (PRWEB) December 21, 2011 It's this year's hot gift for the person who has everything: Telescopes of Vermontâs masterful remake of the 1923 Porter Garden Telescope is this yearâs top pick in the Wall Street Journalâs Holiday Gift Guide 2011. The Porter Garden Telescope, a magnificent garden sculpture and optically superb instrument, is cast in bronze and bears a hand...

2011-06-24 08:11:33

By Daniel Stolte, University of Arizona When finished, the 4.2-meter mirror will be the largest telescope mirror ever pointed at the sun. Polished into a highly complex, asymmetric shape, it will be the centerpiece of the Advanced Technology Solar Telescope in Hawaii, allowing researchers to study the sun in unprecedented detail. The University of Arizona's College of Optical Sciences has been awarded a multi-million dollar contract by the Association of Universities for Research in...

2011-03-31 00:00:30

Many amateur astronomers point their Orion telescopes towards the International Space Station every night. Earlier this month, British astronomer Martin Lewis took numerous images of the International Space Station using his home made telescope and a web cam. He happened to photograph astronaut Steve Bowen who was out on a spacewalk at the time. (Vocus/PRWEB) March 30, 2011 Backyard astronomers have been fascinated with capturing images of the International Space Station (ISS) for years....

2010-06-14 10:48:05

Metal mirrors made with extremely high precision and exactly positioned are the key elements of modern telescopes. A new production technique enables complex optical surfaces to be manufactured with excellent trueness of shape and hitherto unattained positional accuracy. The mirrors have been built for an infrared sounder telescope. For space research as well as climate observation and weather forecasting satellites need increasingly powerful optical measurement and recording devices. They...

2008-09-24 08:10:00

After 3 years and $10,000 worth of restoration costs, Albert Einstein's long-lost telescope will be put on display at the Hebrew University in Jerusalem, an institution the theorist helped start. The old reflecting telescope is bulky, but is still powerful enough to see Jupiter's rings and it's five moons. Einstein received the telescope in 1954, one year before he died, as a gift from a friend named Zvi Gizeri.  Officials at the university believe Gizeri may have made the telescope...

2008-09-22 10:50:00

New historical evidence suggests the telescope may have been invented in Spain, not the Netherlands or Italy as scientists once thought. The findings suggest the telescope's creator could have been a spectacle-maker based in Gerona, Spain. The first refracting telescopes were thought to have appeared in the Netherlands in 1608 and may actually have been made for Spanish merchants. According to historian Nick Pelling, the inventor could have been a man called Juan Roget, who died between 1617...

2008-06-04 13:20:00

Scientists working at NASA's Goddard Space Flight Center in Greenbelt, Md., have concocted an innovative recipe for giant telescope mirrors on the Moon. To make a mirror that dwarfs anything on Earth, just take a little bit of carbon, throw in some epoxy, and add lots of lunar dust."We could make huge telescopes on the moon relatively easily, and avoid the large expense of transporting a large mirror from Earth," says Peter Chen of NASA Goddard and the Catholic University of America, which is...

Latest Reflecting telescope Reference Libraries

2010-09-24 17:50:57

A telescope, designed to aid the observation of remote objects, collects some form of electromagnetic radiation (such as visible light). The Netherlands developed the first known practical telescope in the 17th century. The term "telescope" was termed in order to describe Galileo's instruments in 1611. However, Galileo was not the inventor of the telescope. It was Hans Lippershey, Zacharias Janssen, and Jacob Metius who are credited with the creation of the telescope. In 1668, Isaac Newton...

2004-10-19 04:45:43

Telescope -- A telescope is an instrument composed of one or more lenses or mirrors to gather and focus electromagnetic radiation. Telescopes increase the observed angular size of objects, as well as their apparent brightness. The largest telescopes are used in astronomy. A telescope was first turned on the sky by Galileo Galilei, the Italian scientist. (Telescopes used for non-astronomical purposes may be called "transits," "monoculars," "binoculars," "camera lenses," or "spyglasses".)...

2004-10-19 04:45:43

Active Optics -- Active optics is a relatively new technology for astronomic telescopes. Most modern telescopes are reflectors, with the primary element being a very large mirror. Historically, a fixed weight-to-diameter relation was used to build these mirrors, limiting their maximum diameter to 5 or 6 meters (200 or 230 inches), like in the Palomar Observatory. A new generation of telescopes uses instead very thin mirrors, uncapable of sustaining themselves. Instead, an array of...

Subaru Telescope
2004-10-19 04:45:40

Image Caption: The Subaru Telescope at the Mauna Kea Observatory on Hawaii. Credit: Denys/Wikipedia (CC BY-SA 3.0) The Subaru Telescope is a 26.9-foot (8.2m) telescope located at the Mauna Kea Observatory on the Big Island of Hawaii and operated by the National Astronomical Observatory of Japan (NAOJ). It had the largest primary mirror in the world until 2005. This is a reflecting telescope with a large field of view--called a Ritchey-Chretien--which has a primary mirror and a secondary...

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  • A landsman who is making his first voyage at sea; a novice who enters naval service from rural life.
According to the OED, a grass-comber is also 'a sailor's term for one who has been a farm-labourer.'