Wallpaper Videos See the universe come to life via animations, scientific visualizations, expert commentary, and more. Astronomy Magazine - Interactive Star Charts, Planets, Meteors, Comets, Telescopes Local Weather from AccuWeather.com - Your Day Starts Here™ Introduction to Shark Evolution, Geologic Time and Age Determination Sharks are one of evolution's most enduring success stories. Although they have few hard parts that can survive the insults of geologic time, sharks have left a long and rich fossil record. Some 2,000 to 3,000 species of fossil shark have been described. In contrast, the total cast of the dinosaur dynasty comprises only about 650 to 800 species. The ancestry of sharks dates back more than 200 million years before the earliest known dinosaur. A 'fossil' is any remains, trace, or impression of ancient life, preserved in rock. Shark teeth provide paleontologists an unusual suite of advantages and drawbacks. Cleaned and dried jaws of the closest living ancestor of Hemipristis serra, the Snaggletooth Shark (Hemipristis elongatus). If a fossil tooth is well-preserved, it affords numerous characters that can be used to identify the species (or at least the basic taxonomic group, such as genus, family, or order) to which it belongs. A deformed fossil tooth of Carcharocles megalodon.
Simple, easy to use touchscreen computers for seniors “Over the years I've looked at several computers which were "senior friendly". In the past, they all pretty much were shells over Windows, which essentially added another layer of code that could go wrong. This computer is Linux-based, and everything is coded from the ground up for senior use. Although my mother is not a complete technophobe, she is not comfortable with technology, and my father retired early rather than deal with computers in his business, so he would never allow one in the house. A couple years ago she bought an HP laptop and hired a woman to help her set it up and learn how to use it. Then my mother spotted this computer in the aarp magazine (it is marketed there under another name -- but it is the same machine-at the same price,). On the day I was set to help her set it up, she opened the box, and, following the pictures in the manual (which runs to almost 100 large-type pages), had everything connected before we got there. And that's the important point.
ReefQuest Centre for Shark Research Home Senior Cell Phones | Snapfon ez One | Cell Phones for Seniors ScienceBlogs - Where the world turns to talk about science. Reference, Facts, News - Free and Family-friendly Resources - Refdesk.com The History of Sound Cards and Computer Game Music | MacGateway Jul 13, 2012 All modern computers have the ability to play high-quality digital sound, thanks to the presence of a dedicated sound card or an audio chip on the motherboard. Today’s computers produce lifelike, realistic audio, enabling us to listen to digital music collections, watch online videos and play action-packed games. Table of Contents 1981: PC Speaker If you had an IBM PC computer or a 100-percent compatible clone between 1981-1988, you were most likely listening to — or cutting the wires of — your computer’s internal speaker. Listen to the PC Speaker Silpheed (1988) Composed by Nobuyuki Aoshima, Mecano Associates, Hibiki Godai, Fumihito Kasatani and Hiromi Ohba. This piece from the Silpheed soundtrack illustrates the technique most composers used when writing music for the PC speaker; the speaker plays the main melody only, and no tricks are used to simulate rhythm or accompaniment. J. Composed by Charles Deenen and Kurt Heiden. Space Racer (1988) Composed by Michel Winogradoff.
Pure TalkUSA :: Find No-Contract Cell Phone Plans & Affordable Cell Phone Service 21 Terrifying Deep Ocean Creatures Scary Seas: 21 Terrifying Deep Ocean Creatures Article by Marc, filed under Destinations & Sights in the Travel category. The last true frontier on Earth is deep in the ocean. Any expedition to the dark depths is incredibly expensive, yet invariably comes back with a host of newly discovered species that are about as alien to land dwellers as it’s possible to get on this planet. (Images via thedailygreen, seasweetie, wikipedia, uncommondescent, weird-funnythings) The Kiwa is a blind, furry crab that resides 5,000 feet below the surface of the ocean. (Images via thedailygreen, unknownskywalker, xcitefun, fuckyeahstrangecreatures) This marvelous creature looks like a jellyfish, but it’s actually a sea cucumber called the Pink See-through Fantasia. (Images via mongabay, oceancaresolutions, listverse, seaslugforum) This snailfish’s fins look wing-like and majestic, but the only flying it will do is 7,000 feet underwater. (Images via rocketboom, thetruthbehindthescenes, yahoo, whentalking)
40 Pictures of Airplanes Breaking the Sound Barrier Supersonic speed is a rate of travel of an object that exceeds the speed of sound (Mach 1). For objects travelling in dry air of a temperature of 20 °C (68 °F) this speed is approximately 343 m/s, 1,125 ft/s, 768 mph or 1,235 km/h. A sonic boom is the sound associated with the shock waves created by an object traveling through the air faster than the speed of sound. Below you will find a gallery of incredibly fast and expensive airplanes breaking the sound barrier and thus travelling at supersonic speeds. Pacific Ocean (Nov. 5, 2006) – An F/A-18F Super Hornet assigned to the “Diamondbacks” of Strike Fighter Squadron One Zero Two (VFA-102) completes a super-sonic flyby as part of an air power demonstration for visitors aboard USS Kitty Hawk (CV 63). Off the coast of Pusan, South Korea, July 7, 1999 — An F/A-18 Hornet assigned to Strike Fighter Squadron One Five One (VFA-151) breaks the sound barrier in the skies over the Pacific Ocean. ATLANTIC OCEAN (April 17, 2008) Capt.