Algodoo

I find it amusing that your wife drives such an old car. My wife drives a 2004 Honda Odyssey. Why do they put up with it? I think the trick is to always drive an older more beat up car than your wife. Besides an older car cost less in taxes and insurance and both cars have high reliability.

Q: Did you intentionally add in some damping for the cantilever beam and not for the linear flexure?
A: No, it has to do with scaling 1 inch = 1 Algodoo meter. Algodoo thinks the top plate of the flexure is massive and reacts accordingly. If I wanted a more realistic response, I could set the mass of the top plate equal to the real weight of the top plate in pounds divided by 386 in/s^2, but then you end up with very low density, which Algodoo doesn't handle well.

Thanks.

Thanks.

I guess you guys are just not seeing it. I added an explanation to try and help.

Those hidden output boxes were for troubleshooting. Hours, minutes, and seconds are set with the "h". "m", and "s" keys which cause the bright part of the respective rings to move 0.1 rev/sec. The rings run independently, so the digital conversion fails after adjustment. The clock will still work as an analog clock. For the digital conversion to work, the (3) rings need to be keyed together in the right ratio.

I initially didn't give an explanation because I thought people could figure it out, but that would mean they need to know how Moire effects work, how to read an analog clock, and have an attention span more than 10 seconds. When I read the comments, I figured "Everybody gets this except for Xray and Algodooper" (I really figured "If Xray's not getting this, then hardly anybody is"). Thanks for responding, sticking with it, and checking it out. I don't think anybody wants a clock like this. It seemed like a good idea at the time... Maybe I will make another version.

After making this scene I searched "vernier clock" and came across US patent 2,293,459 titled "Watch" which states "This invention relates to a watch in which the minute and second hands are replaced by a single rotatable disc having vernier markings.".

Thanks. I got the idea from the patent 2,293,459 so you and William Maurice Ewing think alike.

Thanks. Yes, I initially spent a lot of time reducing the lines of Algodoo code and then spent some time synchronizing Python time write to the Algodoo check time window. I use the modified date of the Algodoo modified text file to synchronize Python to Algodoo. The time is now updated once every 10 seconds.

Well done.

Q: The word click accuracy is poor.
A: It works 100% on my PC but that doesn't mean it will work on all PCs. Make sure the font is "DejaVu Sans Mono". Zoom into the word before clicking on it. Don't change the text size. The tip of the pointer is the mouse position, not the finger tip of the hand tool. If all else fails then just type in the word and press enter.

Q: If I Reset the game before it is solved, it shows all blanks and the game gets stuck in that condition.
A: When that happens, just type in any word and press enter.

The video link on this page works fine for me. Maybe Cool_S is referring to the link that shows in the Algodoo description when you first open the scene.

I was going to complain about the extremely light ball and massless spring in this scene, but then took a look at my Slinky Defies Gravity scene which has 112 meter 24 kg slinky. So instead I made two scenes, both of which have real properties for the slinky and ball, which I will attach as a response to this scene.

FYI the angle with no tether should be zero but is shown as (period for 1 revolution)/(sim frequency). In other words, the angle is determined by the time required to make the decision to release the ball.

The rope with the hinge constants adjusted for elasticity looks like a good idea.

Thanks.

Thanks. It's interesting that Algodoo can get similar results as the video, without any special location, tools, or lighting, and do it in the comfort of your own home.

I saw the video quite a while before you posted this scene and decided making a scene was too much trouble, but after I analyzed what you did, I decided to give the slinky part of it a shot.

Q: Why did you make your own Slinky instead of using an Algodoo spring?
A: Because I wanted the Slinky to have a distributed mass. I didn't think to try an Algodoo spring. I used the Compression Spring Generator in the Mechanical Toolbox to make the Slinky.

Your comment is not helpful because lacks detail. If you could cite a specific example, then I might be able to help. The only thing I can think of is that the GUI is slower to respond than a standard GUI because the GUI logic is all in thyme script.

Thanks.

Thanks.

OK to use anything from Juggling? that might help.

Thanks. You might want to play with the _makePath function in the pinion. Just enter _makePath in the upper left entry box in the script menu.

Great idea. Thanks. Done.

Yes, I remember the Square Wheel Bike scene.

wild bill,
Thanks. It's good to hear from you. I see your scenes are still very popular.

Xray,
The up/down keys don't cause much movement but adjust the focus as evidenced by the change in focal point, the blurring of the virtual image, and the change in position of the real image.

Very smooth ride for such a bumpy road.

Nice work.

Fixed (sort of).

Problem: The move tool cannot be selected while the scene is in Play Mode.
Solution: The move tool is available on my PC while in Play Mode. I reset Algodoo just to make sure that is the case. The Drag, Move,and Knife tools are on the right in the bottom menu.