Recent content by Ben123

Wow, I forgot I posted this! I eventually did figure out what the very large track was. It had to have been a small piece of the glass dome chipping off and flying through the chamber. There's a tiny piece missing directly on the bottom inside edge of the rim. It likely chipped while the...

Is this not the same question as if a person in the back of the ship shines a flashlight forward? Or if the ship turns its headlights on?

Read a bit of this: https://en.wikipedia.org/wiki/Eddy_current The "demand" on the generator has to do with the electrical resistance in the circuit. Limiting the current flowing and thus the "drag" created by eddy currents. This is my lamens explanation as I understand it.

I'm a tool and die maker by day, so use my vernier constantly. IMO mitutoyo verniers' have gone down in quality in the past 5-10 years, I have some from the '80's that are in better shape than my new ones. If your dial (mitutoyo) has a little hole in the back of the face to re-set the indicator...

So your really hooking up a 3-12v motor? Why not just use one 9v battery?

Just a little more info, The piston diameter is 1.200" regenerator is .500" OD And the stroke is .35"

Just an update then, I got it together enough to try. I was unsuccessful. The temperature differential I achieved was a measly 10 C. I tried charge pressures ranging from 0-200psi. And rotation speeds from 1-2000rpm. Everything was sealed up nicely, If I left my charge valve open I could see a...

Yes, good point. I think that changing the gear ratio might be more trouble than its worth... Would a different actuator be feasible? Or what about pulling it up with a cable? Harbor freight has a 2500lb winch, that will pull 8.3FPM at 1000 lbs. That would be easy to mount on the top of the tube...

Can you ditch all the gears and machine the shaft for sprockets and just run a chain under the cover instead?

I think more info might be needed to get more responses. You acknowledge that the boiling point of water changes with pressure which is a good start. Where does the heat go after the water takes it away (giant radiator, cooling pond etc.)? What is it's pressure rating? What pump or type of pump...

My first though was a swash plate, similar to a helicopter rotor. But with the push/pull rods at an angle out radially or another pivot point changing the direction of motion outward.

This thread came at a convenient time! I was in the same boat as you, I was interested in making liquid air for a while and tinkered with JT throttles a little bit. I finally decided I was going to pick a design and try and recreate it! I chose this after a bit of research: A simplified...

It almost appears to bounce when it gets to the far side of the chamber? Unless its a visual phenomena when it gets close to the LED light. I'm thinking maybe it was a paint flake or something flying off and it arcs that dramatically just from gravity? Seems more plausible than a massive...

Stellarium says at that time the sun would have been at 17.5deg above the horizon. The track in the video appears to enter the chamber at an upward angle and arc in the chamber downward. The angle I was referring to was the upward entry angle being off relative to the position of the sun. I...

I recorded an amazing cloud chamber track tonight. It came from the direction of the sun, seemed like the angle was off slightly though. I was at 1200ft above sea level and it was 6 pm. I will attach a picture of my setup and a video that is typical and then the video with the awesome track. It...