Questions for Desert plants: The ultimate survivors
Creosote, mesquite and other desert plants rely on different adaptations to thrive, even when no rain falls for an entire year.
Sea levels have been rising for more than a century. But that rise is now speeding up. That suggests that what is driving the rise — climate change — also has increased dramatically in recent years.
A study on twins suggests that environmental factors can shape a person's immune system more than genes do.
The sensors inside a boxy device measure the forces generated with each stroke of a bird’s wings. Learning how much force is needed to keep a bird aloft could help in designing future drones that flap, hover and dart.
Scientists have suspected that rotational forces in the brain may underlie concussions. A new study used athletic mouthguards containing sensors. Data on head movements during collisions suggest that a twisting of the brain may underlie mild brain injuries, including concussion.
A machine heats iron atoms to temperatures that match the interior of the sun. This has helped solve a solar mystery.
How do aquatic mammals have enough energy to hunt prey while steeply dropping their heart rate to stay underwater? A new study of dolphins and seals provides clues.
Scientists suspect the current Ebola outbreak started with bats that lived in a hollow tree in Guinea. The outbreak's first victim, a two-year-old boy, often played in the tree.
Scientists have found a compound in soil that can kill the microbes that cause anthrax, tuberculosis and other diseases.
As sea levels rise, many cities will begin to experience frequent and extensive flooding at high tides. In some areas — even Washington, D.C. — such flooding could become a weekly headache.
Questions for Tides Swamp U.S. Cities
New research suggests a type of air pollution — diesel fumes — can affect your health. It inappropriately switches some genes on, while turning off others.
Forty teen researchers have been selected to compete in the Intel Science Talent Search. The event — a program of Society for Science & the Public — will take place in Washington, D.C., March 5 to11.
Bowhead whales can live more than 200 years. The secret to such longevity may lie in the Arctic species’ genes. Scientists recently mapped the whale’s genetic code. They found features that protect the marine mammal against cancer and other problems related to old age.
The common cold infects the nose. Scientists long have known the virus grows better there, but not why. Now, a study finds the body’s defenses simply don’t work as well under the nose’s slightly cooler temperatures.
But be patient. The distant galactic smashup is still some million years away.
To better understand how the body heals wounds, scientists have begun creating computer programs that let virtual cells fight it out. These ‘computer games’ could lead to better medicines.
SCIENCEBefore reading:1. Why do live-action movies rely on computer effects for some scenes? What are some of the advantages of doing so?2. How does your body respond to a scrape or cut? What visible changes occur, from the moment of injury through the healing process?During reading:1. What is the “mission” of inflammatory cells?2. What manages the process of inflammation?3. Provide an example of a mistake that inflammatory cells might make.4. Define “agent-based modeling.”5. Why is agent-based modeling so helpful in studying complex environments?6. Describe the unexpected behavior that emerged on the virtual battlefield created for the movie.
Rewritable paper could save money, preserve forests and cut down on waste — and all without using any ink.