Helium balloons
58886
Can I take balloons on a flight?
12262
Relationship between balloon size and pressure
62883
Positrons versus holes as positive charge carriers
80717
Surface tension: the paper clip experiment
128318
Why don't all objects bounce like rubber balls?
148475
Bottles with balls inside - PHYSIC SIMULATION
56493
Paper mache dragons that come to life
45779
Homfly polynomial for the Hopf Link
67578
Is this a correct demonstration for why elements above untriseptium cannot exist?
34834
Can helium disappear from Earth?
158769
Zeppelins, altitude record and weird creatures
56765
How are these modern physics figures made?
80540
Elements and their plasma state
104105
Are antiparticles just particle-shaped holes?
155132
Duplicate particle system (not linked)
5678
Rocket/Thrust/Gas/Free Expansion of Gas
19927
Moments of vibrating string