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How to check for dead batteries
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Dead or depleted batteries, especially cylindrical ones like AA or AAA batteries, can exhibit a unique behavior known as "bouncing" when dropped from a short height. This phenomenon is primarily due to changes in the battery's internal chemistry and physical properties as it becomes discharged. Inside a battery, there are chemical reactions that generate electrical energy. As a battery discharges and its chemical energy is depleted, its internal chemistry changes. One of the changes that occur is a reduction in the pressure of gases within the battery. This decrease in gas pressure can make the battery feel lighter, contributing to its bounce. As a battery discharges, its internal components, such as the cathode, anode, and electrolyte, unde ...
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90361 |
duddy |
9 years ago |
Can plastic be converted back to oil?
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Start by watching the video below In the video, a Japanese man converts plastic waste into usable oil and fuel using a machine that thermochemically decomposes the plastic in a process known as pyrolysis. Pyrolysis works by thermochemically breaking down material at temperatures above 350 degrees Celsius in the absence of water. This not only physically melts down an object, but also changes its chemical composition so that, in the case of plastic waste, it reverts back into boiling liquid and eventually gas. Source: http://www.sciencealert.com/holy-crap-watch-this-guy-turn-plastic-back-into-oil ...
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28004 |
duddy |
9 years ago |
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24635 |
ehd123 |
8 years ago |
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20738 |
duddy |
9 years ago |
Definitive proof of water found on Mars
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Since its discovery in 2010, researchers have been trying to solve the mystery of dark streaks that appear and disappear seasonally on the planet's surface (shown above). Scientists are now claiming that this phenomenon, known as the recurring slope lineae, is caused by a bath of saltwater. What is still unknown, however, is where the water is coming from, or if the chemistry is even right for supporting life.
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19317 |
duddy |
8 years ago |
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18118 |
duddy |
8 years ago |
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17546 |
duddy |
9 years ago |
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16343 |
duddy |
9 years ago |
Golden rain
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Watch lead iodide turn into bright golden glitter in this awesome chemistry experiment known as the 'Golden Reaction'
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12526 |
duddy |
9 years ago |
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12110 |
duddy |
8 years ago |
Why do drugs like MDMA make you feel happy?
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This video explains it quite well. The key hormone in question is serotonin. Serotonin is known to play a role in depression. Low serotonin levels are believed to be the reason for depression and associated symptoms of anxiety, apathy, fear, feelings of worthlessness, insomnia and fatigue. The opposite is true when a high-level of serotonin is present, you feel jovial and enthusiastic. MDMA promotes the formation of this hormone. ...
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11021 |
duddy |
8 years ago |
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10979 |
duddy |
9 years ago |
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9194 |
duddy |
8 years ago |
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8608 |
duddy |
10 years ago |
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8547 |
duddy |
9 years ago |