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One of the laws of physics is that energy cannot be created or destroyed.
So one would need a system with 0% energy loss to operate forever.
But - it would still need energy to get started.
There have been various contraptions that use gravity to spin a wheel by having weights around the edge move inward and out as the wheel spins.
Friction is is the killer.

There is a thing called an ATMOS clock that appears to be perpetual.
It uses changes in room temperature to wind the spring and an ultra slow and heavy wheel as a pendulum.

Once setup, they will run unattended basically forever - until some mechanical part fails.
We have one we gave my parents in 1995 that has been running since then - untouched except when we moved it to our house (and to set the time). Others have been running far longer than that.
Here’s a vid explaining the mechanization.

Then there is the Crooks Radiometer. When I was a kid I thought it was just the photons pushing the blades around.
Smarter people than I have argued about how the thing works. But they are still super cool to watch.

All the Best,
Jeff

oldie but a goodie:
reminds me of those Dune worms.

HiEnergy

I’m going to ask if Acebeam would send me the X50 to mount on the drone. Who doesn’t want to to 40,000 lumens on a drone lol

EXACTLY. Even for machines that could run for an extremely long time (many months), the friction is what erodes the perpetual possibility.

It’s getting fuel from the environment… which means it’s not perpetual. BUT, it’s making wonderful use of an ambient ‘fuel’. Heat or light. It’s essentially free, as it ultimately comes from the sun with no cost. That’s what always perplexed me about alternative energy, why solar tech was moving so incredibly slow… while there’s all of this free fuel raining down on us. “No, we’ve got to suck & pull it out of the ground!” Of course, hydroelectric is the most prolific and has been around for a century. But that’s pretty much a fixed asset.

Curiously enough, this is a red state that prided itself on coal consumption. There’s a lot of fossil fuel diminishment in states that once openly scoffed about renewable energy.

Solar:
California - 32,394 MW
Texas - 11,063 MW
North Carolina - 7,308 MW
Florida - 6,681 MW
Arizona - 6,112 MW

I forgot which midwestern state has the fastest growing solar power implementation, but it’s something like 40% of all power consumption. That’s compared to less than 5% just 20 years ago.

A 10 minute motorcycle police chase on narrow streets in South America? somewhere. The chase starts in the video at 1 minute 20 seconds. 2 other short clips in the first minute.- YouTube

Unbelievable! I really thought that guy flying on his bike was going to crash. Insane the chances he took, especially with a rider on the back for most of it.

You can’t make this s&*$ up…

4 days?

Guess that’s what they call a hard-luck story…

Got Staff?

Uploaded a week or two ago

SlowMo Bugs

Merry Christmas!

In the spirit of the season…

Glitter Bomb V 4.0 vs porch pirates.
I love this guy…
All the Best,
Jeff

where do the children play?

Huh… I’ve seen/heard them before.

The kid sounded familiar, at least by name, but… nah, STH isn’t the right song for her.

The gril on the drums was pretty good, didn’t think I saw/heard her before ’til the credits at the end. Sina, that’s her name.

The guy on guitar was good. Played pretty close to The Real Thing.