Physics
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We summarize the week's scientific breakthroughs every Thursday.
- Physics
Antimatter loses again
A study of subatomic B mesons reveals a new way in which the laws of physics differ for matter and antimatter, providing another clue to why there's almost no antimatter in the universe today.
By Peter Weiss - Materials Science
Bacterial glue: The stuff that binds?
A sticky slime secreted by bacteria could soon find its way into a host of wood products, including plywood and particleboard.
- Materials Science
Sea urchin shell lights the way for optical material
Using the porous skeleton of a sea urchin as a template, materials scientists have fabricated a photonic crystal.
- Materials Science
Savvy Sieve: Carbon nanotubes filter petroleum, polluted water
A filter made out of carbon nanotubes has potential for such applications as processing crude oil and decontaminating drinking water.
- Materials Science
To make bronze, tin flakes do a wild dance
Upsetting some prevailing ideas about how alloys form, rafts of tin atoms jitterbug madly around on a pure copper surface and leave spots of bronze in their wakes.
By Peter Weiss - Materials Science
Charging gold with a single electron
Dropping a single electron onto a gold atom with a scanning tunneling microscope converts gold from its neutral state to an ionic state.
- Physics
Starting from Square One
Physicists appear to have wedded the arcane theory of quarks to cutting-edge computer science, giving themselves tools for precisely predicting properties of subatomic matter and possibly observing new physical phenomena.
By Peter Weiss - Physics
Inside Plastic Transistors: Crystal-clear window opens on hidden flows
By creating a new type of plastic transistor, researchers have identified crucial details regarding electric flow through plastic semiconductors.
By Peter Weiss - Physics
Feel the Force: Magnetic probe finds lone electron
Scientists have observed a single electron's magnetism.
By Peter Weiss - Physics
Quantum snare entraps key fifth photon
By coaxing five quantum particles into a state of entanglement, physicists have taken an important step toward dependable quantum computers and more-versatile schemes for transferring quantum information.
By Peter Weiss - Materials Science
Diatom Menagerie
Materials scientists are trying to coerce diatoms into making silicon-based microdevices with specific features.
- Physics
Grainy Geyser: Tall squirts reveal sand’s liquid ways
Dropping a steel ball into fine, loosely packed sand produces towering jets of grains.
By Peter Weiss