Search results for fractal

Environment Feb 14, 2018

A theory of physics explains the fragmentation of tropical forests

Tropical forests around the world play a key role in the global carbon cycle and harbour more than half of the species worldwide. However, increases in land use in recent decades caused unprecedented losses of tropical forest. ...

Robotics Feb 12, 2018

Four robots that aim to teach your kids to code

You've seen apps and toys that promise to teach your child to code. Now enter the robots.

Computer Sciences Jan 12, 2018

What sort of stream networks do scientific ideas flow along?

"Panta rhei, everything flows." If Heraclitus of Ephesus was correct, ideas, like rivers, should flow. Tracking the flow of ordinary ideas can be difficult. In the case of scientific ideas, it is much easier. The researchers ...

Nanophysics Jan 5, 2018

Hard-to-stretch silicon becomes superelastic

As a hard and brittle material, silicon has practically no natural elasticity. But in a new study, researchers have demonstrated that amorphous silicon can be grown into superelastic horseshoe-shaped nanowires that can undergo ...

Plasma Physics Dec 21, 2017

Feathering the plasma nest: Tiny structures help prevent short circuits in plasma devices

Physicists at the Princeton Plasma Physics Laboratory (PPPL) have found a way to prevent plasma—the hot, charged state of matter composed of free electrons and atomic nuclei—from causing short circuits in machines such as ...

Condensed Matter Dec 13, 2017

Is there structure in glass disorder?

Stronger than steel yet easily fabricated, bulk metallic glasses are metals that lack an ordered atomic crystalline structure. The mystery of how the atoms are packed in these glasses has been studied for decades. Now, recent ...

General Physics Dec 6, 2017

Scientists 'paint' the world's smallest Mona Lisa on the world's largest DNA canvas

In 2006, Caltech's Paul Rothemund (BS '94)—now research professor of bioengineering, computing and mathematical sciences, and computation and neural systems—developed a method to fold a long strand of DNA into a prescribed ...

Quantum Physics Nov 30, 2017

Butterfly emerges from quantum simulation

Quantum simulators, which are special-purpose quantum computers, will help researchers identify materials with new and useful properties. This enticing future has just taken a step forward thanks to a collaboration between ...

Mathematics Nov 27, 2017

New computational methodology gives unexpected answers to two Hilbert problems

A paper titled "Numerical infinities and infinitesimals: Methodology, applications, and repercussions on two Hilbert problems," published in EMS Surveys in Mathematical Sciences describes a recent computational methodology ...

Engineering Nov 17, 2017

New method analyzes corn kernel characteristics

An ear of corn averages about 800 kernels. A traditional field method to estimate the number of kernels on the ear is to manually count the number of rows and multiply by the number of kernels in one length of the ear. With ...

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