This is SCIENCE FRIDAY; I'm Ira Flatow. What if you broke your doorknob, or you needed a spare part for your car, and instead of going to a store or your car dealership, you just powered-up your desktop 3-D printer, and hours later, voila, you've got the part you needed.
A pair of Canadian skyscrapers have been dubbed the "Marilyn Monroe" towers due to their shapely form. In Abu Dhabi, twin towers are shielded from the sun by computer-controlled shading screens. Architect Antony Wood discusses features of some tall buildings that make them standouts across the world.
Advocates for cannabis decriminalization have long touted marijuana's potential medical benefits, but some new research suggests that the grass, as it were, may not always be greener.
Plenty of people aren't waiting for marijuana to become legal to start trying it as a medicine, though. About 1 in 10 patients referred to a McGill University pain clinic in Montreal for fibromyalgia over a six-year period were using marijuana to deal with the chronically painful condition, a new study found.