Friday, 25 May, 2012

Native agriculture could be a sophisticated response to a challenging environment. What were the secrets of permaculture, companion cropping and corn farming? Could these techniques contribute to modern farming?

Population growth, climate change and development are all focusing attention on water shortages. Theoretically, water can be recycled forever, but can we possibly clean sewage to make it drinkable? Yes, and a number of projects around the country are doing exactly that. Bottoms up!

Leap day approaches. But could a smart calendar finally drive a stake through the heart of Feb. 29? Could a “permanent” calendar place Christmas and New Year’s Day on Sunday, and simplify life for people who make schedules? It’s possible — but only if the new calendar gains acceptance…

Do you know? Hospitals run out of anesthetics, antibiotics and cancer drugs. Why?

With space shuttles in museums, what is the near-term American plan to return to space? Can other countries or private companies fill the gap?

Long ago, nature devised the hinge and ball and socket for appendages like legs and wings. The screw is the latest simple machine to be discovered in nature. Why do weevils, a type of beetle, have a screw? How does it help weevils survive their 3-D world?

One-third of soils are degraded. Fighting desertification, soil erosion and nutrient loss may be expensive, but some soil-restoring techniques solve multiple problems.

With three nuclear reactors and three pools of spent fuel teetering on the edge of meltdown, Japanese technicians struggled to throttle the nuclear demons after the gigantic tsunami. Is Fukushima closer to Chernobyl or Three Mile Island? How will the disaster affect plans for a renaissance of nuclear power?

After earthquakes caused horrific tsunamis in Sumatra and Japan, we wonder where tsunamis get their power, how warning systems work, and what’s left after the cataclysm.

Military technology supports atmospheric and ocean science! 1: a robot sub smart enough to find stuff in the deep ocean 2: a metal fish glides for weeks under the ice 3: an electric sinker-bobber that never needs recharging 4: a research jet that flies miles above airliners.