阿月貓
Little Known Fact: Balloons
Those floating balloons, when inside a moving object (like a car), don't fall backward like a person would. Instead, they move forward. This is due to density; a balloon that can float must have a density smaller than air...... (don't know what else to write) 🫠
2026.09.09 PM 5:45 · View Count 69
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Lv.71
小米丁
Isn't this the content from today's physics class?
Lv.100
AstaHuang
I can kind of picture that scene, but I don't know the principle behind it.
Lv.84
double7
Learned something new.
Lv.33
vicki328
Huh? Is that so? Doesn't density affect buoyancy? And the direction of movement, up or down, isn't really related to horizontal forward/backward motion? Isn't horizontal forward/backward motion related to speed? And people or objects inside a moving object are affected by inertia and move backward, right?
Lv.86
亂我玩
Learned something new.
Lv.102
虎咬豬
Thanks for sharing.
Lv.31
開心樂逍遙
Learned something new.