Sustainable Energy

The LOLrioKart


Credit: Vincent Auyeung (G)

Students check out the handiwork of Charles Z. Guan ‘11, who wanted to strap a set of large nickel-cadmium batteries to something–anything. He settled on motorizing a shopping cart, which is theoretically capable of reaching 35 miles per hour. The cart, which also boasts regenerative braking and a stereo sound system, earned Guan a ticket from the Cambridge police for operating without a helmet.

Multimedia
Become an MIT Technology Review Insider for in-depth analysis and unparalleled perspective.
Subscribe today

Uh oh–you've read all five of your free articles for this month.

Insider Premium

$179.95/yr US PRICE

Want more award-winning journalism? Subscribe to Insider Plus.

  • Insider Plus {! insider.prices.plus !}*

    {! insider.display.menuOptionsLabel !}

    Everything included in Insider Basic, plus ad-free web experience, select discounts to partner offerings and MIT Technology Review events

    See details+

    What's Included

    Bimonthly home delivery and unlimited 24/7 access to MIT Technology Review’s website.

    The Download. Our daily newsletter of what's important in technology and innovation.

    Access to the Magazine archive. Over 24,000 articles going back to 1899 at your fingertips.

    Special Discounts to select partner offerings

    Discount to MIT Technology Review events

    Ad-free web experience

You've read of free articles this month.