Sometimes a laptop goes into a comatose state that no amount of charging or on-offing can end. If the laptop has a removable battery the solution might be to Disconnect the power supply and...
Battery life In this experiment an electrical cell is tested to exhaustion. The cell might be a dry-cell, an alkaline cell or a lead-acid accumulator. The decreasing voltage is measured over a (long) period...
Batteries or electrical cells are made using different substances. There are zinc dry-cells, alkaline cells and lead-acid accumulators. When you use them, the chemicals become exhausted at different rates. So choosing the right battery...
Batteries are a handy source of power. You’ll know that there are different kinds of batteries, and maybe that some are good for some jobs, and some for others. But battery power is expensive. It...
A DNA drink to enjoy in the sun, how camping can reset your biological clock, and why the Cambridge Science Centre is the place to take the kids this summer! The Science Centre tell us how...
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rogerfrost.com is a compendium of ideas for using technology. It mostly shows how technology helps find answers to science questions. A home automation section for makers asks those questions around the house. Those who teach science will find every idea here indexed to save your time.
Roger Frost was a copywriter from 1988 to 2016 and this web includes many of his articles. They tell how the early Internet developed; how real scientists work and how real people, like you might use science & technology at home or school. Send a hi via the social links or add a comment to an article. Please use this content freely and link back here if you can.
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