Science Education
Still having trouble getting water to stay in an upside-down container? Haven't figured out how to remove the card 'just right?' Here are some hints and tips that will help!
Announcer: Frostbite Theater presents... Cold Cuts! No baloney!
Joanna and Steve: Just science!
Joanna: Hi! I'm Joanna!
Steve: And I'm Steve!
Water: Splash!
Steve: Man...
Joanna: On April 1st, we showed you that, if you're careful enough, you can keep water in an upside-down container without a cover.
Steve: Come on...
Water: Splash!
Steve: No! Argh!
Joanna: Well, that was a lie.
Steve: What!?
Joanna: The problem is that the opening is just too large for surface tension to do the trick. What we need to do is divide the large opening into a bunch of smaller openings!
We'll do that by covering the opening with a piece of screen mesh.
Apply some hot glue to the jar's rim and smash it onto the screen while the glue is still warm.
Trim the excess off with a knife and you're done!
Now, the surface tension across the individual openings is enough to keep the water from coming out!
Water: Splash!
Joanna: Thanks for watching! I hope you'll join us again soon for another experiment!
Steve: You fooled me and, you made me wet my pants...
Joanna: Well, it was April 1st. What were you expecting?
Bazinga!
Subscribe to Jefferson Lab's YouTube channel and be notified when we post new videos!
This page is maintained by Steve Gagnon.
