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Search results 661 - 670 of 1576 matching essays
- 661: Wired Hands - A Brief Look at Robotics
- ... find a part, distinguish it from another part and even examine it for flaws. Diffracto is now working on a tomato sorter which examines colour, looking for no-red - i.e. unripe - tomatoes as they roll past its TV camera eye. When an unripe tomato is spotted, a computer directs a robot arm to pick out the pale fruit. Another Diffracto system helps the space shuttle's Canadarm pick up satellites ...
- 662: Virtual Reality - What it is and How it Works
- ... developed successful methods of allowing six degrees of freedom including Polhemus Research, and Shooting Star Technology. Six degrees of freedom refers to a combination cartesian coordinate system and an orientation system with rotation angles called roll, pitch and yaw. The ADL-1 from Shooting Star is a sophisticated and inexpensive (relative to other trackers) 6D tracking system which is mounted on the head, and converts position and orientation information into a ...
- 663: UFOs: We Are Not Alone
- ... when carefully examined were identified as electrical cells. One of the cells which was discovered in iraq was tested and produced 2 volts of electricity. The other, which was discovered by a pair of arizona rock hounds, was damaged when the sedimentary encrustation was being removed and therefore couldn't be tested (montgomery 221). Since the dawn of time, man has told stories of heavenly and demonic beings coming to rule ...
- 664: Life of Octopus Dofleini
- ... of octopus are, other octopus, sea otters, seals, sea lions, and fish. THE DEN OF THE OCTOPUS In finding a den an octopus is a very resourceful animal. Although most octopuses prefer to make natural rock crevices, and underground caves their dens smaller octopus tend to excavate areas of sea floor to build their own den, and still other octopuses prefer to occupy man made dens, such as ship wrecks. Although ...
- 665: Homo Aquaticus?
- ... refined dexterity than apes is that diving homonids used the right hand to get shellfish from the bottom of waters while the left grasping something to keep them on the bottom. Or they used a rock to open the shell while the left held the mussel or oyster etc. That could be the beginning of human tool use. Hands are paired organs. Each hand needs its own control center in the ...
- 666: Essay on Evolution
- ... of biology. They are preserved remnants found in sedimentary rocks and are preserved by a process called pretrification. To compare fossils the ages must be determined first by relative dating. Fossils are preserved in strata, rock forms in layers that have different periods of sedimentation which occurs in intervals when the sea level changes. Since each fossils has a different period of sedimentation it is possible to find the age of ...
- 667: Salt Pollution
- ... accepted part of the winter environment. It provides safety and mobility for motorists, commercial vehicles and emergency vehicles. Salt is used as the principal deicer because it is the most available and cost-effective deicer. Rock salt is preferred because it is cheap and effective. It costs 20 dollars a ton where as an alternative like calcium magnesium cost around 700 dollars a ton. Some 10 million tons of deicing salt ...
- 668: Chimpanzee versus Humans: Similarities & Differences
- ... very smart on their part. All this sounds very much human-like, but then they also were seen making tools. Chimps used basic tools and twigs to catch ants and eat them. They used a rock to smash nuts. How this is learned is a mystery, many think it is passed down through lineage. Chimps do lack forethought, which is thinking ahead and doing something. The chimpanzee and human differences and ...
- 669: Carnivorous Plants
- ... of the pitcher and die. Flypaper traps, such as the sundew (Drosophyllum & Drosera), produce sticky mucilage that covers the upper surface of its leaves. Insects become mired in this and leaves then bend around or roll up to enclose the prey for digestion. Within the carnivorous plant world there are some truly amazing plants. Of all the hundreds of species Dionaea muscipula, the Venus fly trap, is probably the most dramatic ...
- 670: Biome Broadcast
- ... low. As we walked on we saw a nest of baby rattlesnakes we looked at them from a safe distance when all of a sudden the mother of the rattlesnakes shot out from behind a rock. We all ran for our lives! We ran for a good five minutes before the rattlesnake stopped chasing us. Nobody was bit thank god. A picture of the baby rattlesnakes that we saw. But we ...
Search results 661 - 670 of 1576 matching essays
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