Homemade science is a collection of classroom tested ideas, suggestions, projects, and experiments that I have used in teaching physical science for the Annville-Cleona school district in central Pennsylvania. I have taught science for 41 years and retired in 2018 due to bad knees. My intention is to share these ideas with other teachers or anyone who has an interest in science. I have found that designing and building my own equipment has taught me more than any course that I have ever taken. I hope that you consider trying this for yourself.. I also share and show some of these ideas at workshops, science conferences, or inservice presentations. I can be reached by email at Bgoknee@comcast.net
I may not be posting as often as I used to but I can assure you that I am alive and well, still enjoy trying some new ideas and plan to continue putting up videos for the quite a while yet.
Soda straws are easy to find. Those plastic toys may take a trip or three to various dollar stores to find. But well worth it to spend time with the grand kids. What happens if you reverse the idea and place a diver that sinks and introduce low pressure into the container? Thanks for sharing.
You also can have interesting result having a bottle with not round, but elliptic section. Having 1 object barely floating and 1 barely sank, you can make both floating or sinking together by squeezing bottle in different directions.
Whoever is edditing all of this unreleased content, thank you! I didn't want to accept his passing but this helps. Thank you Mr Yeany. I hope you're looking down at all of us
I've heard this rumor before, while I am getting older, I can assure you that I am still around and still enjoying science as much as ever, just at a slower pace
2:50 The spinning version looks cool. also the remote control is a very nice addition. I once saw a game made of this experiment where there is a small hook attached to the diver and there is a small treasure sank at the bottom which you need to use the diver to pick it up to the surface. Thanks Bruce!
This is just a short burst of air, my brain hurts contemplating the actual physics behind tornadic winds blowing objects. If there is more constant wind behind an object, is it possible for the object to obtain a higher speed than the wind due to kinetic energy? I have so many questions. With air also moving all around the object at the same speed, I would imagine it also keeps the object from deflecting off of the object’s it collides with unlike what happened here with the straw done with artificially generated wind.
So does every substance you use to propagate sound vibrate differently to different tones, and if so, what are the frequency shapes of air and how could we image those?
I enjoy making spinning top-based centrifugal spintoys with LEGO (examples on my channel). Lots of fun to design and play with. Combining LEGO constuction with gravity and non-LEGO springs and elastics makes many different onboard mechisms possible. These centrifugal tops are always crowd-pleasers at LEGO shows. But exploiting centrifugal force in tops is nothing new. Japanese and German topmakers put centrifugal force to excellent use ca. 1850-1930. And much older examples can be found in large vintage top collections.
Hi, on youtube there are several fountains that work continuously. or, so it should. there is no such thing? I am looking for a model of artesian fountain, without electricity
It must be that the egg shell turns into a buzz saw and cuts through the material. All that calcium is really quite strong in small pieces that hit perpendicular to the surface. I wonder if you put a rim on your sledge hammer if that would have a more whole punch effect.
