|
- 积分
- 17983
- 威望
- 17983
- 包包
- 26159
|
2014年1月31日 Science 9 l) E; W/ o( J8 M n
8 g$ o7 n4 p4 g' N0 C# b! XCOVER A circulator for sound. The arrows represent acoustic signals flowing through the device (diameter: ~20 centimeters), which circulates sound in a nonreciprocal fashion: Signals can flow from left to top, from top to right, and from right to left, but not in the opposite directions. This creates one-way communication channels for sound, allowing listeners to hear but not be heard in return. See pages 495 and 516. Image: Erik Zumalt, Cockrell School of Engineering, The University of Texas at Austin
) p( L/ C3 j: J3 G% Z" ~4 L: ]6 ?7 b1 N: m/ _
|
-
总评分: 威望 + 20
包包 + 20
查看全部评分
|
发表于 2014-2-5 14:41
