Category Science & Technology
New structure could produce efficient semiconductor laser sources
University of Wisconsin–Madison researchers have achieved a nanoscale laser structure they anticipate will produce semiconductor lasers in the next two years that are more than twice as efficient as current continuous-wave lasers emitting in the mid-infrared.
Greenhouse gas carbon dioxide ramps up aspen growth
The rising level of atmospheric carbon dioxide may be fueling more than climate change. It could also be making some trees grow like crazy.
Giant collider back in gear, sets record for collision intensity
On Nov. 30, the world's largest scientific instrument, the Large Hadron Collider, set a record when it smashed one stream of protons against another and then accelerated the beams to 1.18 trillion electron volts, exceeding the record held by Fermilab in Illinois since 2001.
Curiosities: Is it true that laughing is good for your health?
Indeed, says Robert McGrath, a clinical psychologist specializing in mind/body wellness at University Health Services at the University of Wisconsin–Madison, and for many reasons. “Humor…
Exhibit explores state of science at time of Darwin’s book
“Science Circa 1859: On the Eve of Darwin’s Origin of Species,” opening Monday, Nov. 23, in the Department of Special Collections at Memorial Library, explores the state of science before Charles Darwin’s groundbreaking book arrived on the scene 150 years ago.
Like humans, ants use bacteria to make their gardens grow
Leaf-cutter ants, which cultivate fungus for food, have many remarkable qualities.
Sweet corn story begins in UW–Madison lab
This week, scientists are revealing the genetic instructions inside corn, one of the big three cereal crops. Corn, or maize, has one of the most complex sequences of DNA ever analyzed, says University of Wisconsin–Madison genomicist David Schwartz, who was one of more than 100 authors in the article in the journal Science.
After mastodons and mammoths, a transformed landscape
Roughly 15,000 years ago, at the end of the last ice age, North America's vast assemblage of large animals - including such iconic creatures as mammoths, mastodons, camels, horses, ground sloths and giant beavers - began their precipitous slide to extinction.
Warmer means windier on world’s biggest lake
Rising water temperatures are kicking up more powerful winds on Lake Superior, with consequences for currents, biological cycles, pollution and more on the world's largest lake and its smaller brethren.
Study: Can meditation sharpen our attention?
A new study at the University of Wisconsin–Madison suggests that people can train their minds to stay focused.
FDA-approved drugs eliminate, prevent cervical cancer in mice
Researchers at the University of Wisconsin–Madison School of Medicine and Public Health have eliminated cervical cancer in mice with two FDA-approved drugs currently used to treat breast cancer and osteoporosis.
Now hear this: Mouse study sheds light on hearing loss in older adults
Becoming "hard of hearing" is a standard but unfortunate part of aging: A syndrome called age-related hearing loss affects about 40 percent of people over 65 in the United States, and will afflict an estimated 28 million Americans by 2030.
Fifty years of expanding girls’ horizons in science, math
The Expanding Your Horizons program, a daylong conference designed to expose young women to careers in science, technology, engineering and math, has touched thousands of Wisconsin women during its 50-year history at UW–Madison.
Middle East air-quality study bridges borders
An unprecedented effort to collect air pollution data in the Middle East has united researchers in a region mired in conflict.
Muscle mass maintenance under scrutiny
When muscles are not pressed into service, they begin to lose mass.