A novel way to test which batteries are the best. Some have better longevity while others better discharge. Source: Mr. Michal

posted by b4rringt0n 3 years 1 month 4 weeks ago • 1,278 views • 3:16

https://youtu.be/3ykkyTgLocA A geologist describes the types of lava flows found on Hawaii, including pahoehoe and aa, shows what happens when wood is introduced into pahoehoe lava, and shows why lava... continue reading

posted by Aard Vark (oritteropo) 4 years 6 months 2 weeks ago • 841 views • 8:41

Exploding molten salt - what happens and why (probably, anyway) - this is the full video. :) From a YT comment: Clearly the explosion is down to the analogue imbalance transition within the hyperbolic... continue reading

posted by Zawash 6 years 3 months 3 weeks ago • 583 views • 8:45

YouTube: Your car battery is dead and you like a boost to jump start? Maybe you can use AA batteries to crank the engine...

posted by PlayhousePals 7 years 2 weeks ago • 368 views • 3:42

YT: 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... continue reading

posted by Zawash 7 years 9 months 4 weeks ago • 589 views • 5:32