Dec 12, 2006 9:51 AM

Ocean of Ideas for Hydrogen

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All the Fancy Measuring Devices Used in Science Rely on Two Stone-Age Techniques

The many methods we use to gather data ultimately boil down to either counting or comparing.

Rhett Allain

Quantum ‘Jamming’ Could Help Unlock the Mysteries of Causality

To keep communications secure in a post-quantum world, cryptographers are digging down into the concept of cause and effect.

Matt von Hippel

The Universe Is Full of ‘Impossible’ Black Holes. Scientists Now Know Why

There are black holes that are too big to be born from the death of a star but aren’t quite supermassive either. There’s finally evidence for where those came from.

Jorge Garay

Build a Radio Wave Detector With Balls of Aluminum Foil!

Here’s how you can hack together a radio transmitter and receiver out of stuff you have at home—and explore the weirdness of wireless.

Rhett Allain

Old Oil and Gas Wells Could Find Second Life Producing Clean Energy

States across the US are looking to take major sources of pollution and use them to generate much-needed power.

Maria Gallucci

The Emptiest Places in the Universe Might Contain Its Best Secrets

Once dismissed as empty expanses between galaxies, cosmic voids are becoming one of the most promising tools for probing the universe’s biggest mysteries.

Becky Ferreira