4 ms·
Can I pee in it? (Serious)
by Raphmedia 12y ago
Can I pee in it? (Serious)
- pweissbrod 12y agoyes. charge lifetime depends on the salinity of the urine
- JTon 12y agoUh. Why do you want to pee in a salt water powered lamp?
- Elrac 12y agoBecause every human being is a walking, convenient source of an electrolytic solution. This is something you can do if you're too, too lazy to mix and pour water and salt. The downside is that you'll probably end up with a smelly lamp, and some of the other crud in your urine may muck up your electrodes. I wouldn't recommend trying it, but the question, asked in the hypothetical, was valid and justified.
- Raphmedia 12y agoCuriosity, and the fact that you could possibly be stranded in the wilderness without salt and use your body as a refinery.
- deckar01 12y agoThey said ocean water is 35g salt per 1000g of solution. http://www.salt.ph/ http://www.salt.ph/ Urine is 40 mEq/L which is approximately 2.3g per 1000g of solution. http://www.healthline.com/health/sodium-urine#NormalResults5 http://www.healthline.com/health/sodium-urine#NormalResults5 http://www.elephantcare.org/millequi.htm http://www.elephantcare.org/millequi.htm http://www.sengpielaudio.com/calculator-milligram.htm http://www.sengpielaudio.com/calculator-milligram.htm This puts you at 6.6% capacity or 31.5min of light.
- tjradcliffe 12y agoOutput time won't scale with salinity that way. Conductivity will vary more-or-less linearly with salinity, and output power will vary more-or-less linearly with conductivity, so with lower salinity you'll get less light (lots less light) but the battery will last for a concomitantly longer time. Batteries run on the anode/cathode pair--not the electrolyte, as this page dishonestly suggests--and as such the total energy available will be determined by those, not the electrolyte. If you wanted to use urine in this device you'd be best to concentrate it by evaporation to get a reasonable output brightness.