Tag: "steel" at biology news
Salvage Gene Is At The Root Of Many Mutations
...goes on within our bodies. "DNA is not a stainless steel
molecule," Lawrence points out. "It issusceptible to damage as a natural part of its existence." The most common form of DNA damage is sporadic loss of individual molecules of adenine and guanine -- two of thefour bases that encode genetic infor...
Moving DNA Molecules With Magnetic Tweezers
...with a magnet. If you place a sheetof paper over a steel
button, then hold the magnet on top of thepaper, you can move the button without touching it. Wirtz'smagnets are three sets of coiled copper wire, each connected to apower source. The coils are positioned to produce electromagneticfields in three dim...
Good Ergonomics Is Good Economics
...t's Division of Environment Technology's work with steel
mills. The basic approach to ergonomics analysis a...ic materials handling and stock-keeping system for steel
pipes and rods was ergonomically redesigned. The redesign reduced the noise level in the area from 9...
Predictions For The 21st Century
...t Century? A fiber one-hundred times stronger than steel
and only one-sixth its weight--called a "buckytube"--is one of many technological developments that will find application in the next century, scientists will report. New ways to fight disease, the impact of gene mapping and sequencing on chemistry ...
Tinkertoy Robot Shows How Humans Walk
...-lying red and yellow outriggers weighed down with steel
nuts off each foot to lower the centers of mass. Ruina helped fine-tune the toy by rounding out the flat spots of the Tinkertoy wheels with flexible brass strips. Soon, the hand-sized gadget was tottering down a gentle slope, tilting from side to s...
Environmental Technology Breakthroughs Forecast -- Year 2008
...es less gas. Lighter cars will be built with less steel
and morelightweight aluminum, magnesium, titanium and composites. Advanced metal-formingtechniques will provide precisely the strength needed at every point,eliminating all excess weight from today's designs. Creating a compositesandwich of glass an...
Biosphere Lessons Can Be Applied To Space, Former Crew Co-Captain Says
...ns will require life support systems similar tothe steel
and glass structure north of Tucson, Ariz., where eight scientistslived for two years, Silverstone said. Silverstone spoke at symposium on future directions in space lifescience research at a meeting of the Space and Underwater Research Grou...
Carnegie Mellon Researchers Develop Nation's First Robotic Tour Guide For The
Dinosaur Hall At Pittsburgh's Carnegie Museum Of Natural History
...tive capabilities. "Nearly a century ago, steel
magnate Andrew Carnegie pioneered inexcavating and displaying dinosaurs at the Carnegie Museum of Natural History,which he founded," said museum director Jay Apt. "Once again, the museum isreaffirming its scientific leadership role by using the best ...
Environmental Testimony: Taiwan Mega-Complex Threatens Endangered Spoonbills And
Efforts To Cut Greenhouse Gases, UD Prof Says
...tee that the oil refinery, petrochemical plant and steel
mill complexcould wipe out the wetlands winter habitat of the black-faced spoonbill. TheBinnan Industrial Complex also could increase that nation's greenhouse gasemissions by at least 25 percent, Byrne testified. And, any developmentresulting in hig...
News Backgrounder: Duke Primate Center Successfully Fosters Mysterious Aye-Ayes
...es in the walls thatmust be covered with stainless steel
sheeting. Also, since the animals areforagers, they prefer to work for their board. "Their natural foraging technique is to dig things out to eat, sothey're basically uninterested in food if it's just presented to them in abowl," said William...
Some Smelter Slags Represent A Significant Environmental Hazard
...two main kinds of slag. The type produced inmaking steel
does not contain high levels of toxic elements, but slag producedby smelters that refine copper, lead, cadmium and other base metals containshigher levels of potentially hazardous elements. That is particularly true ofsmelters that were operating at ...
Duke Geologist Decries Using Engineering Models To Predict Natural Phenomena
...lding -- are useful, Pilkeyacknowledged. "Modeling steel
and concrete is fine," he said. "But now engineershave stepped into natural systems and they want to model beaches. Well, theycan't do that. "In general, they can't model any natural systems with precision. Butbecause beaches are so dynamic a...
Urban Restorer Sees Trash Trees, Beetles As Signs Of Hope
...d States, Nine Mile Run features 20million tons of steel
mill slag in piles 15 stories high, raw sewage mixed inwith runoff in storm surges, illegal sanitary sewer overflows and a severedecline of native plant species. All this, and more, exists in the midst of ahighly industrialized, thickly settled urban...
Pumping with tiny bubbles
...0.5 millimeters in diameter. The engineersinserted steel
needles into each of the larger tubes, connected the needles to apower source and filled the tubes with a salt solution to complete the circuit.The current was "squeezed" as it passed through the narrow throat, causing thewater to boil or vaporize at...
A socially responsible car for the new millenium
... Science in Sheffieldtoday (17.09.99). Thirty-five steel
companies from all over the world areworking toget...ody (ULSAB) that could revolutionise the future of steel
design andmanufacturing. Walker, of British Steel Strip Products in Swansea, one of the key players ...
Communications towers killing birds
... for the moon, some birds smashed head-on into the steel
structure. Therest circled the tower like a confused tornado, eventually hitting one of thetower's supporting guy wires, colliding with other disoriented birds or fallingto the ground in exhaustion. Bird scientists gathering at Cornell University la...
Laser light from Free-Electron Laser used for first time in human surgery
...anly, with less collateral damage than thesharpest steel
scalpel. Its special qualities were discovered five years ago by researchers at Vanderbilt University'sfree-electron laser center. The scientists still don't know exactly why infrared light of thisspecific wavelength works so well, but it got its fi...
Tiny sampling device promises big results for detection and analysis of chemicals
...oncentrator consists of a cigarette-size stainless steel
tube packed with an adsorbent material. A pump for...e tube where it is adsorbed into the material. The steel
tube then goes into a benchtop thermal desorber and is heated to 200 degrees C. The gas escapes...
Scientists tackle ecology of cities
...e fired with fuel from the Middle East and made of steel
forged in Pennsylvania or perhaps Japan." Such heterotrophic systems are rare in the natural world, although they do exist in some marshes, the deep ocean, and streams, but these are less extreme systems. The authors explain the concept of "e...
Cats comforted by synthetic chemical, research suggests
... In one study, 20 cats were housed in stainless steel
cages 3 feet high by 4 feet wide at Ohio State's veterinary teaching hospital. The cages included a litter pan, food and water bowls and a clean towel. Enough space was left between the litt...
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