The way streets and buildings are arranged makes a big difference in how heat builds up, study shows.
When you deform a soft material such as Silly Putty, its properties change depending on how fast you stretch and squeeze it. If you leave the putty in a small glass, it will eventually spread out like a liquid. If you pull it slowly, it will thin and droop like viscous taffy. And if you quickly yank on it, the Silly Putty will snap like a brittle, solid bar.
Scientists use various instruments to stretch, squeeze, and twist soft materials to precisely characterize their strength and elasticity. But typically, such experiments are carried out sequentially, which can be time-consuming.
Now, inspired by the sound sequences used by bats and dolphins in echolocation, MIT engineers have dev... Read More