opwieurposiu

10 ms·

91.
by opwieurposiu 2y ago
If you had a chaff dispenser, perhaps you could deploy a chaff cloud that would look like a fixed object and trigger the emergency braking of the cars behind you. The newest weapon in the war against tailgating.
92.
by opwieurposiu 2y ago
Those lazy trees stand around all day, gorging themselves on free photons and farting out highly combustible gasses. If they can do it, so can you! DIY solar PV hot water system designer: https://www.pvh2o.com/
93.
by opwieurposiu 2y ago
Close your eyes and imagine yourself in the town square of a charming 1000 year old French village. You see cobblestones yes, but do you see any solar panels? Putting the panels in a less visible area is a smart move to avoid conflict with
94.
by opwieurposiu 2y ago
Great blog post, your English is quite good. When I was working on my tool for off grid pv hot water (www.pvh2o.com), I was was able to get insolation data for USA from NREL NSRDB. They claim they have data for the whole planet in the DB b
95.
by opwieurposiu 2y ago
They put engines in the middle and at the end to avoid running out of knuckle capacity. It works most of the time, except all those engines pushing and pulling tends to increase the chance of derailment.
96.
by opwieurposiu 2y ago
Sometimes when I am at the gym I wonder if there could be a better set of weight denominations. I feel like 1,3,9,27,81 could be an optimal set; but I am not sure how to prove it.
97.
by opwieurposiu 2y ago
You can DIY store 10kWh+ of solar in your water heater: https://www.pvh2o.com/ When I plug data for LA into the simulator I get a payback of 1.4 years.
98.
by opwieurposiu 2y ago
The big dish antennas do use ruby masers, but not to transmit. The maser is used as the LNA on the receive side. Check out the picture on page 41 of the pdf, clearly this a flux capacitor, mislabeled to deceive us ;) https://des
99.
by opwieurposiu 2y ago
For old cars we say say "If there ain't no oil under it, then there ain't no oil in it."
100.
by opwieurposiu 2y ago
At my friends coffee shop they make cold brew with an elaborate laboratory glassware setup that drips ice-water through a filter. Looks pretty neat and sciencey. They got 4 of these devices running all the time in the back room. I was
101.
by opwieurposiu 2y ago
Not all electric heating technologies need the grid. You can DIY a 2kW solar system and store 10kWh of heat in your water heater. No grid connection required. https://www.pvh2o.com/faq
102.
by opwieurposiu 2y ago
You can store about 10kWh of heat energy in your water heater at home. https://www.pvh2o.com/faq
103.
DIY Solar PV Hot Water System Designer(pvh2o.com)
2 points by opwieurposiu 2y ago|1 comments
104.
by opwieurposiu 2y ago
A simulator to help you hook some solar panels to the bottom element of your water heater. Can pay for itself in as little as two years if you live in an expensive power area.
105.
by opwieurposiu 3y ago
If you get yourself a supply of Permethrin and some mosquito nets, you will be miles ahead of most people. Permethrin is great stuff, the mosquito lands on permethrin treated cloth, the mosquito falls down dead. It is something to see. You
106.
by opwieurposiu 3y ago
Burn it in a fast reactor
107.
by opwieurposiu 3y ago
Burning 24.5 gallons of diesel makes 1 MWh of heat, so at 50% efficiency call it 50 gallons per MWh . This makes the 6.2 MWh battery equivalent to about 300 gallons of diesel. If you plug in this battery to charge at 1MW, it will take abou
108.
by opwieurposiu 3y ago
The birthday cake smell thing is right on, happened to me. I was transporting a hobby fighting robot and noticed the smell. When I took it out of the metal box I found a wire had broken and the 18650 battery was shorted.
109.
by opwieurposiu 3y ago
Yes, much of the ocean is basically a desert due to a lack of iron. Low iron leads to low plankton which leads to low fish counts. Ocean fertilization could 10x the number of fish, and possibly store some carbon also.
110.
by opwieurposiu 3y ago
In small trainer planes, the seat gets moved back and forth frequently to accommodate students of different heights. At least one crash has been caused by the seat rails becoming so worn that the seat slid back during takeoff and the pilot
111.
by opwieurposiu 3y ago
Their website says it can land on a packed dirt airstrip, 6000ft long. I wonder if they would park all the nearby windmills during takeoff/landing, to avoid creating swirly air.
112.
by opwieurposiu 3y ago
Edison's first application as a logging truck is perfect for hybrid. Most of the time a logging truck drives up the mountain empty, and comes down loaded. The gravitational energy of the logs can be stored and used to power the empty
113.
by opwieurposiu 3y ago
They have also manipulated drug test results. Turns out the lab tech was snorting up all the "standards", which are used to calibrate the machines. Then the tech faked the calibration of the machines.
114.
by opwieurposiu 3y ago
Lol wut
115.
by opwieurposiu 3y ago
I went to a 95% percent black high school. I recall my English teachers stressing avoidance of AAE (then called Ebonics) in professional settings. Speak however you wish with your friends, they said, but use Standardized American English f
116.
by opwieurposiu 3y ago
Vortex ring state has killed more then one of my quad copters. When you are flying a quad with a lot of power, it is fun to zoom up vertically, cut the throttle, and drop. Normally, the motors have enough power to arrest the fall before you
117.
by opwieurposiu 3y ago
"Honey, You are fat, lets go to the gym." vs. "Honey, You have an Obesity issue, lets go to the gym." The former resulted in yelling and crying. The latter got us to the gym, so I found "Obese" to be a useful w
118.
by opwieurposiu 3y ago
Anyone had success with improving a kid's handwriting? My son's writing is 2/10. I myself am only 3/10. With reading and math I am able to help him. I have not found anything effective for penmanship.
119.
by opwieurposiu 3y ago
There are more details and a video of the welder here: https://camvaceng.com/electron-beam/ebflow/ It has a mini-vacuum chamber on the welding head so you can e-beam weld large workpieces without needing a large v
120.
by opwieurposiu 3y ago
One time I was fly fishing with a baby on my back sleeping in his carrier pack. I managed to hook him the back of the head. Plucked the fly out and kept fishing, the kid did not even wake up! Kids are tougher then you expect. The "

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