Fossils
1分钟赛车最新开奖号码查询结果记录 This bizarre ancient predator snagged soft prey
Scientists are rethinking how this extinct creature used the spiky limbs sticking out of its face to hunt.
Word of the Week
Space
168极速赛车官网直播记录 Scientists Say: Pulsar
These rapidly spinning dead stars send beams of radio waves into space like cosmic lighthouses.
Analyze This!
Materials Science
Analyze This: A new fabric mimics polar bears’ pelts for warmth
With layers that work like polar bears’ skin and fur, a material absorbs light and keeps it from escaping.
Experiment
Chemistry
Experiment: Test the effect of temperature on reaction time
Alka-Seltzer tablets fizzle furiously when dropped into water. Can you make Alka-Seltzer fizz faster or more loudly by changing the water’s temperature?
168极速赛车查询开奖结果号码+官网直播记录 What's Hot
Hot hot heat
Watch This 极速赛车官网开奖历史记录|168赛车结果查询-1分钟极速赛车官方开奖记录计划
An ‘einstein’ shape eluded mathematicians for 50 years. Now they found one
The shapes can form an infinite tiled pattern that never repeats. The first is a 13-sided shape nicknamed “the hat.”
