Vol. 71 No. #16
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More Stories from the April 20, 1957 issue

  1. Unique Laboratory Notes Cosmic Ray Showers

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  2. Chemists Get Cheaper Tools for Faster Work

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  3. Radiation Fatalities May Be Reduced by Drug

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  4. Nylon Oil “Sausages” May Replace Tankers

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  5. New Machines and Gadgets

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  6. Nature Ramblings: Buckeyes

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  7. Front Matter

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  8. Free Radicals Power Life

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  9. Better Switches Needed

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  10. Danger to Streams

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  11. Hi-Fi Turns out Addicts

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  12. Greater Accuracy Gained in Optical Flats

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  13. Axicon Optical Devices

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  14. Injections by Spray Gun

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  15. Carrier of Wheat Virus Found: A Mite Is Named

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  16. Barbital Quadruples Streptomycin Production

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  17. Powerful Searchlight to Spot Enemy Subs

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  18. Instrument Measures Vertical Wind Velocity

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  19. Hope for Tornado Control

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  20. [Photograph]: Hypersonic Shock Tube

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  21. Camera Takes Millions of Pictures per Second

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  22. Cellulose Made outside a Living Cell

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  23. New RNA Species Found

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  24. Observatory in Venezuela

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  25. Tiny Memory Device Is Switch Changed by Light

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  26. Rubber Tube Breathing Prevents Lung Collapse

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  27. In Science Fields

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  28. Comet Remains Visible

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  29. “FAS” Scores Give Neighborhood Types

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  30. Tough New Plastic Can Replace Metals

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  31. Books of the Week

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  32. Atomic Radiation Makes Rocket Fuel Burn Faster

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  33. Chemists Stress Safety for Labs and Factories

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  34. Mud Pies and Paper Hats Guilty of Murder

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