Slashdot Mirror


Physicists Do What Einstein Thought Impossible

An anonymous reader writes "Einstein worked on Brownian motion (the movement of small particles in a fluid as they collide with the fluid's molecules) in 1905, but said it would be 'impossible' to determine the speed and direction of a single particle during this dance. Now researchers have gone and done it, by suspending a dust-sized glass sphere in air (which slowed down its dance moves, since it had fewer collisions with spaced-out air molecules than it would have had with water molecules). The researchers held the sphere in place with 'laser chopsticks,' and then watched how the glass bead bounced around to determine its direction and speed (abstract)."

10 of 193 comments (clear)

  1. Magic words... by fahrbot-bot · · Score: 5, Funny

    You had me at "laser chopsticks".

    --
    It must have been something you assimilated. . . .
    1. Re:Magic words... by vandoravp · · Score: 5, Funny

      "Laser chopsticks" sounds way cooler than "optical tweezer" from TFAbstract. They should've gone with that in the paper.

    2. Re:Magic words... by Yvan256 · · Score: 5, Funny

      Bhey alfo burn your mouf.

    3. Re:Magic words... by Anonymous Coward · · Score: 5, Funny

      You typed that with your mouth?!

      Ouch!

    4. Re:Magic words... by treeves · · Score: 5, Funny

      Fire-breathing Dragon Naturally Speaking!

      --
      ...the future crusty old bastards are already drinking the Kool-Aid.
  2. What an idiot by ayahner · · Score: 5, Funny

    Ha. Einstein. What an idiot.

  3. Re:Keep in mind by noidentity · · Score: 5, Funny

    "In 1907, Einstein likely did not foresee a time when dust-sized particles of glass could be trapped and suspended in air by dual laser beam "optical tweezers.""

    I'm sorry but: No freaking shit. In 1907 I doubt many people would have foreseen that

    Warning: Do not attempt to foresee any more laser-related developments with remaining eye.

  4. This Einstein Fella is a Hack by PatTheGreat · · Score: 5, Funny

    This Einstein fella - I keep on hearing about how he's been proven wrong or might be proven wrong or how people are picking his ideas apart. It's like he hasn't even SEEN a modern physics paper in like, the last 50 years.

    --
    Google: "All your data are belong to us."
    1. Re:This Einstein Fella is a Hack by ImprovOmega · · Score: 5, Funny

      Yeah, and when was the last time he published anything? I doubt he'll make tenure at this rate.

  5. Re:New unit of size.... by misosoup7 · · Score: 5, Funny

    Since when is 'dust' a unit of size?

    Since they made chopsticks out of monochromatic light.