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Playing with Legos for Science's Sake

Physicist German Drazer drops a ball bearing into a Lego pegboard. (Will Kirk/JHU)

WASHINGTON (ISNS) -- Researchers at Johns Hopkins University have developed an unorthodox method to study the behavior of microscopic nano-particles -- by playing with Legos.

The team, led by physicists Joelle Frechette and German Drazer, built a grid out of round Lego blocks and immersed it in liquid glycerin to observe the paths of ball bearings they dropped into the construction.

Though Lego blocks are many times larger than a nano-device, particles passing through the grid behave fundamentally the same way, the researchers said. By increasing the scale of the experiment from nano to Lego size, researchers are able to better visualize, describe and ultimately predict the behavior of the particles that normally are far too small to see.

Many designs for nano-devices require the sorting of microscopic particles and ball bearings immersed in glycerin behave much the same way as nano-particles in microfluidic arrays. By determining the likely paths that different sized bearings take on the Lego board, the researchers can predict the paths nanoparticles of different-sizes, charges or textures in the microfluidic arrays.

The team recorded the paths of ball bearings descending through the Lego obstacles and found that the smaller bearings zigzagged randomly through the grid, while the larger bearings followed more deterministic straight lines.

The team's complete results were published the August 14th issue of Physical Review Letters.

—Mike Lucibella

Inside Science News Service

Results appear in the August 14th issue of Physical Review Letters


  1. There is a typo in the article header.
    It should read -
    "Playing with Lego for Science's sake."

  2. I believe LEGO would prefer: Playing with LEGO Bricks for Science's Sake

  3. LEGO™ demands that you immediately:

    1. remove all infringing content and notify us in writing that you have done so;

    2. credit all infringing content to ourselves in the following.... kidding.

    Mega Bloks suck though.

  4. 2nd confirmation that Mega Bloks suck.

  5. legos eat mega blocks for breakfast.



  7. no one thought of "lego my eggo"?
    are we not men? are we d-e-v-o?

  8. no one thought of "lego my eggo"?
    are we not men? are we devo now?

  9. At least be consistant: half of the time you call it LEGO and the rest of the time you say Legos!
    (I believe that it is the former that is correct.)


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