科学60秒:强大程序帮你瞒天过海
Imagine that you want to send a secret message to your colleague at the CIA. You can ___1___ it to prevent counterspies from reading it. But they'll still know you were sending some sort of messa...
科学60秒:海龟自带"指南针"
If you ___1___ in the Atlantic, you'd flounder on which way to swim. But a hatchling loggerhead turtle would know just where to paddle—by reading the Earth's magnetic field. Scientists knew turt
科学60秒:加点水,更黏稠?!
Usually, we trust ___1___ to solve problems. Is a runny mixture too thick? Add some fluid. That’ll make it runnier. Except when the fluid makes it thicker. Scientists now think they know why. Th...
科学60秒:山高万丈,实为错觉
Stand at the bottom of a big hill and you can exhaust yourself just thinking about climbing it. But a new study suggests it’s not as bad as it looks. Because people tend to ____1____ the steepne...