Abilities of technological design
Giving the ultimate gift
Listing your Facebook status as “organ donor” seems to induce friends to sign up at organ registries. A new study finds a strong quick More
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
A new iron age?
Smelters refine aluminum ore, but not iron ore, with electricity. A new electrolytic process for refining iron ore could save vast More
Spears helped our ancestors eat and defend themselves. Spearmaking required ingenuity, experiments and communication. Symmetrical stone More
Farming, Native American style
Native agriculture could be a sophisticated response to a challenging environment. What were the secrets of permaculture, companion More
Calendars: A fix needed?
A “permanent” calendar could finally answer the annual, “Uh, what day is New Year’s eve this year?” question. This calendar would place More
Running out of space
With space shuttles in museums, the near-term American plan to return to space relies on other countries or private firms. More
Biology as engineer
Long ago, nature devised the hinge and ball and socket for appendages like legs and wings. More
Soil: Key to solving the food crisis?
Could soil help? One-third of soils are degraded. In fighting desertification, erosion and nutrient loss, some soil-restoring More
Nuclear nightmare in Japan
With three nuclear reactors and three pools of spent fuel teetering on the edge of meltdown, Japanese technicians struggled to throttle More
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!
Video surveillance: Who is watching you?
Happy Thanksgiving! We celebrate eating — and food.
We celebrate eating — and food. Hungry: Is that your “food clock” ringing? Why does a fruitfly need to smell? More