Tech

Math

Maybe there’s a way to find out if reality is a computer simulation

Randomness.

Tech

Printed robot moves with a beat

Tiny device created with a 3-D printer employs heart cells to make it move.

Tech

Building robots that slither

Howie Choset is a roboticist, but his team’s creations bear little resemblance to C-3PO or R2-D2. Instead, Choset finds inspiration in nature — specifically, snakes.

Tech

Tiny muscles pull a big punch

Coated carbon nanotubes form the basis of this smart new material.

Tech

Beginnings of Bionic

Electronics that bend with the human body may soon make their way into medical devices to track health, deliver treatments and improve surgery.

Tech

Plastic fantastic seals in speeding projectiles

Layered nanomaterial shows how bulletproof polymers wrap around penetrating particles.

Tech

Cancer cells executed by magnet

Metal nanoparticles trigger cell's own death machinery.

Tech

Degradable devices vanish after use

Technique combines silicon, magnesium and silk for medical implants, transistors and digital cameras that can melt away.

Tech

Science Past from the issue of October 6, 1962

Tech

Facebook peer pressure gets out the vote

People were more likely to take part in the November 2010 election when they were told that their online friends already had.

Tech

When Networks Network

Once studied solo, systems display surprising behavior when they interact.

Tech

Unmixing oil and water

A new filter that separates the two substances only using gravity could help clean oil spills.