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alsa.org/donate/
Posted 3 weeks ago by IZA in category: fail   Comments (1)


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Archerfish - Hunting by spitting requires great control over the water jet shot at prey.
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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 2 weeks ago by groundhoss in category: interesting   Comments (2)



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Guinness World Records 2015
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Posted 7 hours ago by SandraN in category: cute   Comments (0)