A neighbor moved a year and a half ago and was throwing out some beat up garden lights, so I salvaged them from the dumpster. They were pretty good ones 7 or so years ago when they were new, but the plastic was aging and brittle. I got a few solar cells and circuit boards
(Read More…)
Everything you ever wanted to know… This is Part 1 and there is Part 2. https://cleantechnica.com/2022/05/10/everything-you-ever-wanted-to-know-about-charging-an-electric-car-at-home-but-were-afraid-to-ask/
It doesn’t matter whether or not biodiesel has particulate matter. What matters is biodiesel and vegetable oils do not put any *new* CO2 into the atmosphere. Global warming has already brought us close to the 1.5 deg. C limit. If it continues, the warming will be 4 deg. C or more by 2100 and most
(Read More…)
India heatwave caused by climate change. When the temperature is 37 deg. C or 100 deg. F, and the humidity is very high, the body cannot cool itself by evaporation and cannot regulate its temperature, which causes heat exhaustion, heat stroke and hyperthermia and the person will die. https://www.reuters.com/breakingviews/india-heatwave-throws-food-security-loop-2022-05-12/
NREL and GE develop the system. https://cleantechnica.com/2022/04/18/wind-turbines-can-stabilize-the-grid/
Cory Little Said, “.. batteries are an ongoing expense and an environmental catastrophe.” Batteries are heavy, and the cost is a large part of the vehicle. The battery tech is advancing, and the LFP batteries are capable of more than 3000 charge discharge cycles. 300 or more miles per charge times 3000 charges is a
(Read More…)
https://eu.boell.org/en/2021/04/26/7-reasons-why-nuclear-energy-not-answer-solve-climate-change The 7 reasons why nuclear energy is not the answer to solve climate change Analysis New nuclear power costs about 5 times more than onshore wind power per kWh. Nuclear takes 5 to 17 years longer between planning and operation and produces on average 23 times the emissions per unit electricity generated. In addition,
(Read More…)
I got this idea; instead of using a microphone and preamp at the end of a twisted pair, I would build a microphone, preamp and modulate a red laser with the audio and pick up the audio about ten yards away with a light detector. Notice that it runs on two 2V photovoltaic cells in
(Read More…)
The world has a much more dangerous greenhouse gas than CO2 – it’s methane, also known as natural gas. And huge amounts are locked up in the environment, and may be released by global warming. Biofuelspk said, “… natural gas which is 84 times worse for climate change compared to CO2.” I’ve read the numbers
(Read More…)
My decade old GE started leaking on the floor after the bearings went out – it howled like a banshee. I went to Lowe’s and bought a new Maytag and the salesdroid wanted me to pay $40 to have the old one hauled away. I said no thanks, I’ll get rid of it. But I
(Read More…)
