When birds or insects fly, they displace air with their wings – that is how it works. Maybe sometime at night you have disturbed an owl and heard the flap of its large wings. This sound is a frequency ...

Engineers are (rapidly) getting better at building smaller and smaller robots. Last year, for example, researchers at Purdue University made microbots capable of somersaulting their way through people ...

Flying insects are known to make a beeline for lights in the dark, as the saying goes, "like moths to a flame." Now, scientists have figured out why insects are so keen on light, but it's not because ...