3 ms·
We used it to demonstrate centrifugal forces in elementary school by spinning one and putting drops of food coloring in the center. They were made of lightly-wa
by lightedman 10y ago
We used it to demonstrate centrifugal forces in elementary school by spinning one and putting drops of food coloring in the center. They were made of lightly-waxed parchment paper so you could see a trail it left behind as it got flung off.
I'm just surprised it took this long. That particular lesson was... 26 years ago for me.
- oh_sigh 10y agoWell why didn't you tell the world about this 26 years ago. Heck, why didn't you tell the world 2 days ago?
- lightedman 10y agoThen, much like now, I'm too busy with minerals and the inordinate amounts of money people will pay for them.
- oh_sigh 10y agoIt must be tough having no free time over 26 years. Hope retirement goes well for you!
- lightedman 10y agoRetirement? That doesn't happen to workaholics like myself.
- jrockway 10y agoIs posting to Hacker News part of your work?
- lightedman 10y agoIt's what I do while I'm waiting for 4-ton boulders to get moved out of the way with heavy explosives.
- oh_sigh 10y agoYou should have used that time to invent the technology that you knew about for 20+ years.
- lightedman 10y agoWhy me instead of someone else? Someone else needs to have success in life. I'm too busy getting you guys the lithium you need for your portable devices because you can't be bothered to do proper recycling.
- oh_sigh 10y agoThat's quite noble of you. I just hope you aren't also sitting on the cure for cancer, so you don't hog all the glory for humanity.