Brewing biofuel

Brewing biofuel
The struggle to make fuel from wastes from farm, factory and forest continues. What’s keeping cellulosic biofuel out of the market? More »

3-D printing: Wave of the future

3-D printing: Wave of the future

Layer by layer, 3-D printers fuse tiny particles of plastic or metal, building complex parts from computer instructions — forget hold More »

Store more. Much more!

Store more. Much more!

The explosion of data — in meteorology, genetics, spying and physics — requires new storage technology. DNA has been storing data for More »

Making spears

Making spears

Spears helped our ancestors eat and defend themselves. Spearmaking required ingenuity, experiments and communication. Symmetrical stone More »

The science of cheese

The science of cheese

Cheesemaking is older than Homer’s Odyssey, but questions remain. Which bacteria make the best cheese? Must low-fat cheese taste like More »

Mock meat: Fit for grilling?

Mock meat: Fit for grilling?

Soy protein: It may look like meat. Could meat be grown, cell by cell, in lab dishes. Could in vitro meat solve health and More »

Farming, Native American style

Farming, Native American style

Native agriculture could be a sophisticated response to a challenging environment. What were the secrets of permaculture, companion More »

Chasing neutrinos at the South Pole

Chasing neutrinos at the South Pole

Neutrinos are odd: Extremely difficult to see, they travel through mass with scarcely a trace. A 1-billion ton detector in South Pole More »

I robot. Aye science!

I robot. Aye science!

Ocean technology on the move: 1: a robot sub smart enough to find stuff in the deep ocean 2: a metal fish glides for weeks under the More »

Plumbing ancient Mayan plumbing!

Plumbing ancient Mayan plumbing!
A small constriction in a buried pipe shows that the Maya were using pressurized pipes before year 750. It’s more proof that when it More »

Fertilizing the ocean

Fertilizing the ocean

As Earth warms, should we try huge geoengineering projects to cool the climate? Would adding iron to fertilize ocean plants withdraw More »