Comet Enthusiast

Description

Radio astronomy. Computer montage imageshowing a radio telescope dish against a field ofstars and other radio sources. Extraterrestrialradio waves were first detected by Karl Jansky in1931, and the first radio telescope was built byGrote Reber in the late 1930s. It was only afterWorld War Two, however, that radio astronomy wasdeveloped into a major branch of observation. Themain advances came after the development ofsolid-state physics and

Features

• Radio astronomy. Computer montage imageshowing a radio telescope dish against a field ofstars and other radio sources. Extraterrestrialradio waves were first detected by Karl Jansky in1931, and the first radio telescope was built byGrote Reber in the late 1930s. It was only afterWorld War Two, however, that radio astronomy wasdeveloped into a major branch of observation. Themain advances came after the development ofsolid-state physics and
• This item is uploaded and managed by Science Photo Library
• © Mehau Kulyk/Science Photo Library

Description

Radio astronomy. Computer montage imageshowing a radio telescope dish against a field ofstars and other radio sources. Extraterrestrialradio waves were first detected by Karl Jansky in1931, and the first radio telescope was built byGrote Reber in the late 1930s. It was only afterWorld War Two, however, that radio astronomy wasdeveloped into a major branch of observation. Themain advances came after the development ofsolid-state physics and

Features

• Radio astronomy. Computer montage imageshowing a radio telescope dish against a field ofstars and other radio sources. Extraterrestrialradio waves were first detected by Karl Jansky in1931, and the first radio telescope was built byGrote Reber in the late 1930s. It was only afterWorld War Two, however, that radio astronomy wasdeveloped into a major branch of observation. Themain advances came after the development ofsolid-state physics and
• This item is uploaded and managed by Science Photo Library
• © Mehau Kulyk/Science Photo Library

List Price: $49.95
Sale Price: $19.27
You save: $30.68 (61%)

Description

200W CONTINUOUS POWERHIGH SURGE POWERPLUGS INTO LIGHTER SOCKETCOOLING FAN20 AMP POWER REQUIREMENTGROUND FAULT SENSINGELECTRONIC CIRCUIT PROTECTIONSHORT CIRCUIT PROTECTIONOVERLOAD PROTECTIONVOLTAGE PROTECTIONTHERMAL CUTOFF2 AC OUTLETSUSB PORTINCLUDES LIGHTER SOCKET CABLEUPC : 052303404245Shipping Dimensions : 9.50in X 8.41in X 3.50inEstimated Shipping Weight : 1.6845

Features

• 200 Watts Continuous power - 400 Watts Surge Capacity (Peak Power)
• Features 2 AC Outlets and 1 USB Port.
• Cooling Fan.
• High Surge / Ground Fault Sensing
• For safety, features five separate points of Electronic Circuit Protection.

List Price: $79.95
Sale Price: $23.00
You save: $56.95 (71%)

Description

400W CONTINUOUS POWERHIGH SURGE POWERPLUGS INTO LIGHTER SOCKETDIRECT WIRE CABLES WITH CLAMPSCOOLING FAN40 AMP POWER REQUIREMENTGROUND FAULT SENSINGELECTRONIC CIRCUIT PROTECTIONSHORT CIRCUIT PROTECTIONOVERLOAD PROTECTIONVOLTAGE PROTECTIONTHERMAL CUTOFF2 AC OUTLETSUSB PORTINCLUDES LIGHTER SOCKET CABLEUPC : 052303404252Shipping Dimensions : 9.50in X 8.40in X 3.50inEstimated Shipping Weight : 1.9

Features

• 400 Watts Continuous power - 800 Watts Surge Capacity (Peak Power)
• Features 2 AC Outlets and 1 USB Port.
• Cooling Fan.
• High Surge / Ground Fault Sensing
• For safety, features five separate points of Electronic Circuit Protection.

List Price: $34.99
Sale Price: $13.97
You save: $21.02 (60%)

Description

100W CONTINUOUS POWERHIGH SURGE POWERPLUGS INTO LIGHTER SOCKETCOOLING FAN10 AMP POWER REQUIREMENTGROUND FAULT SENSINGELECTRONIC CIRCUIT PROTECTION5-POINT ADJUSTABLE PLUGAC OUTLETUSB PORTUPC : 052303404238Shipping Dimensions : 9.75in X 6.15in X 2.00inEstimated Shipping Weight : 0.7224

Features

• 100 Watts Continuous power - 200 Watts Surge Capacity (Peak Power)
• Features 1 AC Outlet and 1 USB Port.
• Appointed with 5-Point Adjustable Plug
• Ground Fault Sensing
• For safety, features five separate points of Electronic Circuit Protection.

List Price: $397.95
Sale Price: $189.00
You save: $208.95 (53%)

Features

• Locates and identifies over 6,000 stars, planets, and constellations with GPS technology
• Red LED backlit display for easy-to-read information
• Accepts SkyTour SD multi-media cards for interactive tours of the night sky
• Includes USB port for easy download of database updates
• Measures 7.4 x 2.5 x 4.0 inches (W x H x D)

Sale Price: $599.99

Description

Orion's SkyQuest XT8i Intelliscope Dobsonian Computerized Telescope combines powerful 203mm-diameter reflector optics with point-and-view simplicity in a nicely portable package. With the included IntelliScope Computerized Object Locator, the amateur stargazer can pinpoint the location of 14,000+ celestial wonders stored in the IntelliScope's databank. It's like having your own personal tour guide to the universe! The optical tube houses an 8" (203mm) parabolic mirror and rides on our state-of-the-art Dobsonian base, equipped with springless CorrecTension friction control for smooth movement and always-perfect tube balance. One-year limited warranty.

Features

• Large Dobsonian reflector telescope with 8" aperture allows you to see faint deep-sky objects such as nebulas and galaxies, in addition to fantastic views of the Moon and planets
• Locating those faint deep-sky objects is simple with the IntelliScope Computerized Object Locator - it includes more than 14,000 objects in its database, and points you right to each one
• Select the object you wish to view from the IntelliScope database, then simply follow the directional arrows displayed on the hand controller by moving the telescope until the object is right in the eyepiece field of view - it's easy!
• The ultra-stable Dobsonian telescope base keeps the reflector optical tube perfectly balanced for easy point-and-view use
• A precise Crayford focuser allows use of larger format 2" telescope eyepieces - the bright, wide-field view of the Andromeda galaxy in a low power 2" eyepiece is jaw-dropping!

List Price: $34.99
Sale Price: $20.99
You save: $14.00 (40%)

Description

Uncle Milton 3-D Star TheaterThe first 3D Home Planetarium! Includes 3D glasses. 3 AA batteries required (not included)Product Measures: 5.5" x 5.7" x 5.5"Recommended Ages: 8 - 99 years

Features

• Transform your room into a 3-D Planetarium
• Projects amazing 3-D images
• Project constellations, stars, planets and mor
• Includes 3-D Glasses
• Join the 3-D revolution today!

List Price: $24.95
Sale Price: $12.95
You save: $12.00 (48%)

Description

It looks like all that money NASA spent on the Hubble Space Telescope was worth it after all--at least from an aesthetic standpoint. Stargaze: Hubble's View of the Universe captivates the viewer with stunningly high-definition color images of galaxies, nebulae, and heavenly bodies closer to home. Each shot pans and lingers over the richly colored pictures as unobtrusive narration in English, French, German, or Spanish explains the history of the Hubble mission, its targets, and what we've learned so far. The music by 2002 is harmless and quiet, though viewers pathologically averse to New Age will scramble for the audio control. Including screensavers and Web features, Stargaze will keep spaceheads happy and entranced for hours, and convert the unbelievers. --Rob Lightner

Marvel at the wonders of the universe with this collection of outer space imagery from the Hubble telescope, accompanied by a celestial score. 60 min. Widescreen; Soundtracks: English Dolby Digital stereo, French Dolby Digital stereo, German Dolby Digital stereo, Spanish Dolby Digital stereo, Dolby Digital 5.1 music track, Dolby DTS music track; Subtitles: English, French, German, Spanish; DVD-ROM content; more.

List Price: $399.99
Sale Price: $149.97
You save: $250.02 (63%)

Description

The Porter Elite AVCS AV Case was designed to accommodate any one of 150 LCD projectors and many other AV or PC related hardware and accessories. With ½" high density foam pad in the bottom and a 17.5" X 13.25" padded outer ring, semi rigid adjustable divider and a choice of foam for the lid it will really protect your precious hardware from damage when on the road.

As with all PC II Porter Case models the AVCS Elite has new 4" ball bearing wheels, a foam pad under the 42" extension handle, combination lock, side strap handle, and more. The Elite AVCS instantly converts into a heavy duty cart to carry up to 200 pounds (90 kg) of other equipment on top.

It also fits under most airline seats and/or overheads to help the professional traveler to protect their investment.

Features

• 4" ball bearing wheels on solid 3/8" solid steel axle.
• 43" padded telescope handle carries up to 200 pounds (90 kg).
• Built in combination lock.
• 3 year limited warranty.
• Size: 18" x 13" x 8", weight: 15lb

List Price: $96.99
Sale Price: $79.95
You save: $17.04 (18%)

Description

The Kensington 62903 Contour Overnight Notebook Roller gives you one case with comfort, flexibility, and adaptability for your overnight travel. The Kensington 62903 has a built-in, five-stage telescoping handle that adjusts to match the height that is most convenient for you. When carrying is required, this case has a panel and weight distribution system that reduces shoulder fatigue, and balances the weight closer to your body when you are lifting the bag. The bag is constructed with 1680 Denier Ballistic nylon that provides protection against abrasions, punctures, and tears, while the DropShield padding and SnugFit sleeve provide the ultimate in drop protection. The Kensington 62903 features easy-access pockets that keep your tickets, phone, PDA, and keys at your fingertips. This unit also features a flexible overnight compartment adapts to maximize usable space for clothing, a zippered exterior compartment that holds multiple files and can be expanded into the interior compartment for more room, and a zippered interior compartment that holds extra clothes and your toiletries in a water-resistant pocket. This carrying case fits most notebooks that are 17-inches or smaller, and is backed by a manufacturer's limited lifetime warranty. The bag has exterior dimensions that are 14.5 x 9.5 x 19.5 inches (WxDxH), and notebook compartment dimensions of 11.5 x 1.5 x 16 inches (WxDxH).

Features

• One roller bag carries notebook computer, clothing, toiletries and files.
• Contour system balances weight closer to your body when you need to lift the bag
• Curved handle telescopes through four stages to shift weight to the wheels for personalized rolling comfort
• Flexible zippered compartments for clothes, files, and a water-resistant pocket for toiletries.
• Easy-access pockets keep tickets, phone, PDA, and keys at your fingertips