Gallery: A Clever Bike-Powered Centrifuge for Developing Countries

  • Image may contain Wheel Machine Human Person Hat Clothing Apparel Transportation Vehicle Bike and Bicycle
    Jack Albert Trew
    01

    spin

    Jack Albert Trew designed a low-tech centrifuge that's powered by a spinning bike wheel.
  • Image may contain Human Person Finger and Hand
    Jack Albert Trew
    02

    bloos low res

    First you prick a finger and fill a standard capillary tube with blood.
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    Jack Albert Trew
    03

    SF V1

    The tube is then inserted into a rubber sleeve.
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    Jack Albert Trew
    04

    SF V2

    This sleeve is inserted into the swinging arm attachment and secured onto the bike spoke.
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    Jack Albert Trew
    05

    blue low res

    The bike wheel needs to spin at more than 750 rpm for around 10 minutes to properly separate the samples.
  • Image may contain Human Person Video Gaming and Electronics
    Jack Albert Trew
    06

    junior holding

    Trew believes he can get production costs to around £10, making it inexpensive enough for many developing countries.
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