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Posted 4 years ago by boyt in category: pranks   Comments (0)


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Posted 3 years ago by boyt in category: pranks   Comments (1)


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Brian Cox visits NASA’s Space Power Facility in Ohio to see what happens when a bowling ball and a feather are dropped together under the conditions of outer space.
Posted 1 year ago by kriss in category: interesting   Comments (3)



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Posted 2 years ago by 26plinkster in category: interesting   Comments (1)


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This test works equally well for AA, AAA, C, D and 9 Volt alkaline batteries.It is our understanding that the following chemical reactions occur and helps to explain our observations.A non-rechargeable alkaline battery begins life using zinc powder mixed into a gel containing a potassium hydroxide electrolyte separated from a paste of manganese dioxide powder mixed with carbon powder using a porous membrane. To minimize hydrogen outgassing an extra measure of manganese dioxide is added. As the battery discharges manganese dioxide powder changes to manganese oxide causing the powdered granules to bond both chemically and physically. This packed-sand consistency reduces the antibounce effect exhibited by the gel mixture when the battery was fully charged.
Posted 1 year ago by groundhoss in category: interesting   Comments (0)