Sound in the form of waves has always been transmitted in two ways, forwards and backwards. Recently, a new machine transfers sound only one way. So there'll be no talking behind your back! Buh dum tsss...
Scientists were able to achieve this form of sound in one direction by using magnetic materials to send all electrons of the waves spinning in one direction. The machine resembles a fan and is made so these sound waves only travel in one direction. Look at the picture below!
It looks like a toy for a toddler! "Which part of the acoustic circulator is red?" Next thing you know, they'll be on sesame street. Imagine what the parents of these scientists must think. "You spend your life making things like this?..." Read more from the article: http://www.livescience.com/42984-one-way-sound-machine-created.html
Still there can be good uses for it! With the huge crowds at Metlife Stadium today, maybe scientists can figure out ways to contain sound within areas. Like a highway! Or a concert in the middle of a city! Either way, it's cool how these scientists can manipulate the properties of sound waves to change how they're transmitted. So study science all your life, and then you can make a fan. Still, if the Dyson fan can find a purpose in this world, so can this invention.
"Let's buy it because it looks like a goal from quidditch!"
do you think they used them to contain the sound of the marching band playing at tonights halftime show because i sure didnt hear them
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