Spandex Gravity Well (+instructions to make your own!)
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- Опубліковано 25 лют 2016
- THIS VIDEO IS INTENDED FOR INSTRUCTIONAL USE. Please consult a physics teacher for a more complete explanation. Instructions to make your own gravity well are given below!
Objects in this demo will fall into the center of mass because of friction between the objects and the spandex. In the vacuum of space, objects would remain in orbit, following the applicable physical laws of motion.
Instructions to make your own:
- 3/4 inch diameter PVC tubing with 1/8 inch thick walls. Usually comes in 100 foot coil for ~$12-$30 (find at local hardware store).
To create a 60 inch diameter hoop, you'll want to cut a 188.5 inch length of tube. You can cut the tube with a PVC pipe cutter or hack saw. Slowly expand to full circle. You can use a heat gun or hair dryer to aid the process. Tape ends together. You can also connect the pipes with an inside PVC connector for less than $1.
- 60x60 inch spandex fabric (as stretchy as you can find 15-20% spandex content). 60 inches is the typical width of a spandex bolt. Get a little extra just in case. Usually fabric stores have coupons for 40-50% off a single item ~$10-$20.
- 12 large binder clips ~$5-$12, found at most stores.
Clip spandex to PVC pipe, stretching to keep spandex tight. Readjust as necessary.
Use chairs, stools, or tables to hold up completed gravity well. A more sturdy structure made of PVC pipe can be easily constructed.
For central mass, a 2 pound weight toning ball works well ~$5, found at most big box stores.
Marbles work well for test particles ~$5 at Toys-R-Us.
One of the best videos for explaining gravity thank you!
Thank you for this, it was very useful in my classroom :)
Awesome demonstration!!
Wonderful demonstration, thanks
Great demonstration
Awesome! Maybe it's possible to use a fabric which if it contracts changes color, this would give a visual indication of the amount of warping being done.
Beautiful
nice work
From what i see all your objects eventually fall in middle and stop orbiting ,why dont we see the same thing in reality ? Space is 3D so why does the bending only happen in one direction ?
Wow.. brilliant
Cool Video!
Awesome !!! Keep making such wonderful videos!!
Good explanation help laymen physics student.
Awesome
this video helped me have a better understanding of space time and orbits. very cool
So literally dark energy make like lift fabric of space and blackhole punture the fabric of space.
Make sence though
WOW!
Woah... That's just...
You can do this also at home
Wow
It took 10 years for me to understand the concept of space time
😭😭😭😭😭
fascinant
What ever be the orbit finally the object went to the center Simii why don't all the planets immerse in the Sun?
It's just eyeball candy.
just use the pipes from a tent will save you a lot of time