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  2. SCIENCE-INVENTION-IDEAS

    When grinding valves with a screwdriver, it is rather difficult to ... [ILLUSTRATED]

    Article : 60 words
  3. Wire Brush Attached To Hoe

    A wire brush can be used conveniently to scour or clean a floor ... [ILLUSTRATED]

    Article : 87 words
  4. Vitamin C Isolated

    Vitamin "C," the health-giving substance in citrus fruit, has been isolated Announcement that he had concentrated it from lemon juice, after five years ...

    Article : 67 words
  5. One Match At A Time

    Here is an Australian invention, a match-container, which ensures that the housewife can never have her matches taken, except one at a time ... [ILLUSTRATED]

    Article : 95 words
  6. Suction-Cup Valve Grinder

    On valves that must be ground with the use of a suction-cup valve grinder, it is sometimes rather difficult to make the cup hold, due to the pitted surface ...

    Article : 67 words
  7. Last Of Chemical Elements Found

    By a method of chemical analysis so delicate that it can recognise one part in 100,000,000,000 of water, scientists of Alabama Polytechnic Institute believe ...

    Article : 115 words
  8. A Stropping Block For Tools

    A strop, which will put a keen edge on tools, can be made by gluing an 8-in. length of 2-in. leather belting to a wooden block of the same size, after which ...

    Article : 58 words
  9. Pencil As Filler

    The filler hole in a cigarettelighter being too small to ... [ILLUSTRATED]

    Article : 74 words
  10. Sheaf-Band Cutter For Pitchfork

    Farmers feeding grain in the sheaves can make a useful band ... [ILLUSTRATED]

    Article : 65 words
  11. "Yellowing" of Paper Caused by Rosin

    Strong corroboration of the theory that light-sensitive rosin is a cause of the "yellowing" of the better grades of paper, has been obtained as the result ...

    Article : 110 words
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