Jump to content
Join the Unexplained Mysteries community today! It's free and setting up an account only takes a moment.
- Sign In or Create Account -
Still Waters

Small tray levitated using nothing but light

Recommended Posts

Still Waters

IN THE BASEMENT of a University of Pennsylvania engineering building, Mohsen Azadi and his labmates huddled around a set of blinding LEDs set beneath an acrylic vacuum chamber. They stared at the lights, their cameras, and what they hoped would soon be some action from the two tiny plastic plates sitting inside the enclosure. “We didn't know what we were expecting to see,” says Azadi, a mechanical engineering PhD candidate. “But we hoped to see something.”

Let’s put it this way: They wanted to see if those plates would levitate, lofted solely by the power of light. Light-induced flow, or photophoresis, isn't a breakthrough on its own. Researchers have used this physical phenomenon to float invisible aerosols and sort particles in microfluidic devices. But they have never before moved an object big enough to grasp—much less lifted anything that can carry objects itself.

https://www.wired.com/story/researchers-levitated-a-small-tray-using-nothing-but-light/

*long read*

  • Like 4
  • Thanks 1

Share this post


Link to post
Share on other sites
 
joc
6 hours ago, Still Waters said:

IN THE BASEMENT of a University of Pennsylvania engineering building, Mohsen Azadi and his labmates huddled around a set of blinding LEDs set beneath an acrylic vacuum chamber. They stared at the lights, their cameras, and what they hoped would soon be some action from the two tiny plastic plates sitting inside the enclosure. “We didn't know what we were expecting to see,” says Azadi, a mechanical engineering PhD candidate. “But we hoped to see something.”

Let’s put it this way: They wanted to see if those plates would levitate, lofted solely by the power of light. Light-induced flow, or photophoresis, isn't a breakthrough on its own. Researchers have used this physical phenomenon to float invisible aerosols and sort particles in microfluidic devices. But they have never before moved an object big enough to grasp—much less lifted anything that can carry objects itself.

https://www.wired.com/story/researchers-levitated-a-small-tray-using-nothing-but-light/

*long read*

Heat rises...that's one helluva breakthrough!  # Heat Rises

Share this post


Link to post
Share on other sites
toast
17 minutes ago, joc said:

Heat rises...that's one helluva breakthrough!  # Heat Rises

Here is a helluva breakthrough for you: heat does not rise, the carrier does, means, air. The experiment was performed in a vacuum chamber = no air = no carrier.

  • Like 1
  • Thanks 1
  • Haha 1

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

  • Recently Browsing   0 members

    No registered users viewing this page.