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Maybe a Venus Flytrap or an old flip phone would be similar? Also can be accomplished playing with magnets where there's a middle point of the polarities wanting to attract or repell.

So in theory we could use diamonds as heat sinks for electronics no?

What's top?

maybe this mechanism ur talking about is a bottle plug with lever?

Pressure increases melting point decreses that's why

Следующий этап модернизации, кидаешь в мусорку старые газеты а от туда выпрыгивают деньги.

Steve is the hero we all knew we needed. Frigg'n pop-up tents!

So you call them Stanley knives as well, aye?

Shows intelligent design

Stapler when you open it

A stapler

Holy sh*t . Seeing this ant catapulting itself airborn just with it jaws is something else xD

12:20 You can find this similar mechanism in an aircraft landing gear. In the down lock mechanism of the landing gear, especially the main landing gear. Here it is called over-centering.

So are we the ball in this situation?

That energy storage system allways reminds me of how i think cis- and trans isomers work!

. *I have seen a drawer type door that uses that rubber-band setup you have. Think of a triangle, the side view of the drawer thing, where the bottom of the triangle is the pivot point (the bottom of the drawer thing face-plate/front.) A spring is used to hold it closed, but when you pull it open, you pass a center point where the spring starts to hold it open. I do not know if I explained it well, but it is an example.*

Reminds me to the rotating detonation engine

No, the names of the poles of a magnet are arbitrary and were assigned by people. The poles of a magnet could just as easily have been named positive and negative, or alpha and omega. They were named North and South because of their usefulness in the creation of compasses for navigation, with the "North" pole being named as such because when used in a compass that end points towards the North pole of the planet.

those kick stands on bikes?

BS - ice is melting when pressure is applied, just google , cutting ice with fishing string and weights or brass ice molds, the main principle here is applying pressure, that's all

watch this being an integral part in the problem of lighting rotating detonation engines.

More heliocentric propaganda.

Don't some shampoo bottle caps have this effect (of course not every shampoo bottle, just a few brands have them). It gets easier to open past a certain limit and a little force could close it shut again.

Surprised we don't make clothing out of them.

may-be it's mentioned already but eyeglasses case hinge also uses over-center mechanism

Does a light switch employ that same mechanism?

You should have had another comparison with those copper heat transfer pipes, don't remember what they are actually called but they use them for CPU heatsinks.

*Tell that to your average overweight kid eating this oversugared crap all day*

Another good example of the last mechanism is something like a car hood or a garage door. both rely on gravity acting in the downward direction, and a spring acting against it. for a garage door, gravity pulls more on the door when it is farther closed and more of it is vertical, and for a car hood, as it closes gravity pulls more directly parallel to the axis of rotation. In both cases the force of the spring is relatively constant, and the mechanism will snap into position at either end, but there's also a point in the middle where it takes very little force to move. These are also interesting because unlike the mechanism with the rubber band, different strengths of the spring will change where the balancing point is, and even whether there is one at all.

Atlatl.

Now this is functional art I would pay to go see.

Oh my god, how much cooler could it be ??? Not a lot, that's for sure. I'm definitely gonna ask my friends to print me some of these stuff. As a Zippo lover, I always have some lighter fluid on me.

i was thinking compound bow, compound bow when you asked....

Another cool thing to measure is ‘vasomotion’ which is the very small blood vessels in the skin opening and closing at about 2 to 7 beats per minute. The vasomotion waves travel across the body. It’s a bit of a mission to measure involving fluorescent excitation of 400nm and filters to block the excitation. But it looks cool.

Luger Pistol?

I've seen car bonets held in place by springs and also easy to close. Basically same principle as this. Its from old cars though.

5:25 "if you had three stable states" -- clearly there are five stable states, with two at the top of the hills. But you won't ever end up in them, unless you started in that exact state and the odds against it are infinite. No number of random trials would end you in one of those states precisely.

So put the small ball at the end of the model leg and then release the leg...

The most common and simplest power boosting tool used by humans (and others) is the hammer, with special 'hammers' for different needs: Framing, sledge, dead-blow, piano, Axe, maul, cleaver, golf clubs, various bats and racquets, battering ram, etc.

And that's why rappers call diamonds "ice"... Because their thermal conductivity is so high they feel very cold to the touch.

LMAO, the missed shot camera footage, I'm too easily pleased.

Natural example of an over-center mechanism: For people with double jointed fingers*, a finger can be extended back far enough that flexing forward only causes the last knuckle to bend. This locks that knuckle, and the line formed by all three knuckles curves back. Flexing more only builds tension. Relaxing the extensor starts to unlock the last knuckle, the line curves forward, and the moment the line it flips all the force from the flexor is released, flicking the finger forward. This can also make a weird 'bip' sound and will definitely give me arthritis.

Sweetspots huh...What things in our daily lives might have better performance at an undiscovered sweetspot size/shape/form/proportions? What ancient or future technologies that we cannot yet get to work, DO work at a different undiscovered sweetspot size/shape/form/proportions? When ideas don't seem to work in the real world, how many engineers try a billion different size configurations hunting for a sweetspot?

Hmm. It really seems like it should be possible to make flame logic gates.

Ah yes the "No U" chamber

Reminds me of flicking

Fascinatingly, when he explains the crater illusion, i actually saw a mountain when he said i should see a crater, and the reverse

Copper or even aluminium wouldve been a good comparison

I did not know that

That little device reminds me of a light switch if it was mirrored. I’m sure it’s not using elastic but similar characteristics in both directions.