Physics
- Physics
Molecule turns red at breaking point
Materials made with a color-changing molecule may offer a red signal when under stress.
- Earth
U.S. radiation dose has doubled
New analysis finds radiation-based medical procedures have skyrocketed.
- Physics
Obama pledges 3 percent of GDP for research
Pledges for big budget increases for research, permanent tax credits for reseach by industry and more were announced today.
- Ecosystems
Living Physics
From green leaves to bird brains, biological systems may exploit quantum phenomena.
- Climate
EPA says greenhouse gases ‘endanger’ health
Featured blog: New ruling is a likely first step toward federal moves to cut tailpipe emissions of carbon dioxide and more.
- Physics
Nanoclusters seem to skirt physics law
In simulations, tiny loophole allows colliding nanoclusters to increase speed after impact.
- Tech
Cloaked eye still sees
Researchers have proposed a model that would allow sensors to send and receive information virtually undetected.
- Humans
In teeth, more cracks are better than one
Cracks in tooth enamel, called tufts, distribute force and shield a tooth from fracture, researchers report.
- Materials Science
Double-laser approach makes one thin line
Erasing and stenciling could refine tiny printing for sculpting nano-sized devices.
- Physics
Radioactive cigarettes
Polonium remains an underappreciated factor in the lung-cancer risk posed by cigarettes.
- Chemistry
Bubbles turn on chemical catalysts
Mechanical force could help chemical compounds spur reactions when the time is right.
- Materials Science
Viruses could power devices
Viruses — the biological kind — could be used to construct more efficient, environmentally friendly lithium ion batteries
