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This mechanism shrinks when pulled

53,022 views • 11 months ago •via X (Twitter)

9 Comments

Veritasium's profile picture
Veritasium11 months ago

Watch our latest video in full on YouTube

William Shipley's profile picture
William Shipley11 months ago

The two springs start out in series, but when you cut the green string, they are in parallel on the other strings. After the slack is taken up, you have two springs that are stretched farther than they need to be to hold up the weight, and they pull up with more mechanical advantage than they had when in series. It only works because you trade out the energy in the spring tension for more potential energy in the height of the weight. Total potential energy is conserved.

Dw's profile picture
Dw11 months ago

The weight will go up because the springs go from series to parallel.

Isaac's profile picture
Isaac11 months ago

The auxetic material paradox, first described by Rod Lakes (1987), exhibits negative Poisson's ratio - contracting perpendicular to applied tension. Nature employs similar structures in cell walls and crystalline materials.

Ferarn's profile picture
Ferarn11 months ago

Up, very slightly, is my guess, but almost the same height, because the weight gets distributed to the two springs equally instead of the top spring holding the combined weight the other spring and weight.

♦ ereliuer eteer ♦'s profile picture
♦ ereliuer eteer ♦11 months ago

if you pull my hand, i can do that too

Jay Foreman's profile picture
Jay Foreman11 months ago

PART 2 IS HERE ! 🗺️ @OrdnanceSurvey (Britain's best map makers) let @markcooperjones and me in their building, and we changed the map of Britain.

GoodTimesWithScar's profile picture
GoodTimesWithScar11 months ago

I went outside

Brandon Herrera's profile picture
Brandon Herrera11 months ago

Pardon my French, but @SenJackReed is a fucking moron. It’s embarrassing that the future of our country is being decided by people like this.

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