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Recommended camera obscura Items
SK TOOL - SKT90343 - 10LB TELESCOPE MAGNET

SK TOOL - SKT90343 - 10LB TELESCOPE MAGNET
SK TOOL - SKT90343 - 10LB TELESCOPE MAGNET

Observing the Sun with Coronado Telescopes (Patrick Moore's Practical Astronomy Series)

Observing the Sun with Coronado Telescopes (Patrick Moore's Practical Astronomy Series)

The Sun provides amateur astronomers with one of the few opportunities for daytime astronomy.

In order to see the major features of our nearest star, special telescopes that have a very narrow visible bandwidth are essential. The bandwidth has to be as narrow as 1 × 10^-10 m (1 Angstrom) and centred on the absorption line of neutral hydrogen. This makes many major features of the Suns chromosphere visible to the observer. Such narrow-band "Fabry-Perot etalon filters" are high technology, and until the introduction of the Coronado range of solar telescopes, were too expensive for amateur use. The entry-level Coronado telescope, the PST (Personal Solar Telescope) costs under $500.

Solar prominences (vast columns of plasma, best seen at the edge of the solar disk), filaments, flares, sunspots, plage and active regions are all visible and can be imaged to produce spectacular solar photographs. Philip Pugh has assembled a team of contributors who show just how much solar work can be done with Coronado telescopes, and explain how to get the best from these marvellous instruments.

SK TOOL - SKT90342 - 5 LB TELESCOPE MAGNET

SK TOOL - SKT90342 - 5 LB TELESCOPE MAGNET
SK TOOL - SKT90342 - 5 LB TELESCOPE MAGNET

Canon PCW-CP100 4" x 8" Size Paper Cassette, for Dye-Sub Card Photo Printers.

Canon PCW-CP100 4" x 8" Size Paper Cassette, for Dye-Sub Card Photo Printers.
Canon is a leader in professional business and consumer imaging equipment and information systems. By developing innovative, high-quality business solutions Canon makes it easy to create, manage, and share images and information better, faster, and more efficiently.

StarryNight-Comet Hunters/Asteroid Seekers!

StarryNight-Comet Hunters/Asteroid Seekers!
Comet Hunters / Asteroid Seekers DVD

Superman, Magnetic Telescope

Superman, Magnetic Telescope

Totally Gross The Game

Totally Gross The Game
Want to help kids understand biology, physics and chemistry' A dose of gross helps science makes sense. This game covers all the major scientific disciplines in a way that's engaging to kids. Features icky experiments and outrageous activities. Includes a game board, 140 Question cards, 50 Gross-Out cards, 30 Lab cards, a die and a jar of slime. Winner of iParenting Media Award. For 2 to 4 players.

Current camera obscura News
Camera Obscura - Lloyd I'm Ready To Be Heartbroken

Thu, 10 Jul 2008 22:21:50 -0700
Camera Obscura - Lloyd I'm Ready To Be Heartbroken