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  2. SCIENCE INVENTION IDEAS

    IN an emergency you will find an ordinary paper envelope will ... [ILLUSTRATED]

    Article : 55 words
  3. Counterweighted Hook is Self-releasing

    HANDLING a hoist rope single-handed can be simplified by using a counterweighted hook, which releases itself from the handle of the ... [ILLUSTRATED]

    Article : 89 words
  4. Newly-planted Trees Thrive on Oat Sprouts

    AN orchardist who has been successful in getting newly-planted trees to grow uses sprouted oats, which makes a food the roots can easily absorb. When ...

    Article : 71 words
  5. Electrical Detective Spots Counterfeits

    COUNTERFEIT stock certificates can be spotted quickly by the use of an electric detector developed in the Westinghouse research laboratories in America. ... [ILLUSTRATED]

    Article : 119 words
  6. Celluloid Cement Has Many Uses

    CELLULOID dissolved in acetone can be used as an adhesive, as a preservative varnish, or for purposes of strengthening porous materials by impregnation. ...

    Article : 199 words
  7. Missing Spark Plug Detected With Fingers

    SPARK plugs that are not firing are sometimes rather difficult to locate. An easy method is as follows:—Allow the motor to run until thoroughly warm. The ...

    Article : 67 words
  8. Radio Receiver in Pillow Replaces Earphones

    INTENDED for use in hospitals and Pullman cars, a radio pillow containing a reproducing unit has recently teen brought out. The pillow is of regulation ...

    Article : 85 words
  9. A Wooden Footrest for the Pump

    A WOODEN footrest for the tyre pump will often be ... [ILLUSTRATED]

    Article : 53 words
  10. Rubber Guard Protects Wood When Driving Nails

    To protect wood while driving nails, a piece of rubber, cut from an ... [ILLUSTRATED]

    Article : 55 words
  11. New Notions

    A needle-threading device. Detachable wheels for motor-cycles. A device for automatic sealing of pneumatic tyres and gas tanks. ...

    Article : 46 words
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