... and why!

less than 1m read

·Nov 10, 2024

The reason this trick works every single time is elegantly simple. It has everything to do with the fact that their chosen card will always be in a pack that is third from the top.

That's because we had them take the pack containing their card, see? There's Boron, and put it on one of the piles. Then we had them put two more piles on top of that one.

So this stack is in order: pack number one, pack number two, pack number three, which contains their card, and at the bottom, pack number four. When they deal the cards out into rows, they are changing the packs into layers.

See, here we go! We've got 1, 2, 3, four cards. These are the cards that made up pack number one. Here comes pack number two; it is now becoming the second layer.

The third layer will be the components of pack number three, including Boron, their card. So when they finish and take the pack containing their card, because it is part of the third layer, it will be the third from the top, which means it will always be the third card from the left. Boron. [Music]

Implicit differentiation, product and chain rules at once

Michael Burry: 5 Life Lessons That Made Him Rich (UCLA Speech)

View All

Scouting for Wildlife in Big Bend National Park | National Geographic

So it looks like we got some animal activity already. Hold on. Don’t come down any further. We’re here at probably one of the most beautiful spots that you can see in Big Bend National Park, Santa Elena Canyon. I am scouting for National Geographic right …

Does MONEY BUY Happiness? - The TRUTH About Money | Kevin O'Leary & Erik Conover

[Music] Everybody, welcome back to Ask Mr. Wonderful. Another fantastic episode about to happen! You know I love to collaborate with people, particularly those who travel all around the world, because all of our questions are global these days; we get th…

Bond enthalpies | Thermodynamics | AP Chemistry | Khan Academy

Bond enthalpy is the change in enthalpy, or delta H, for breaking a particular bond in one mole of a gaseous substance. If we think about the diatomic chlorine molecule, so Cl₂, down here is a little picture of Cl₂. Each of the green spheres is a chlorine…

Acid–base indicators | Acids and bases | AP Chemistry | Khan Academy

Acid-base indicators are used in titrations to determine when the equivalence point is reached. Let’s look at a hypothetical indicator. In the protonated form, the indicator has the formula H-I-N. So this would be the acidic proton on this protonated form…

A day in the life - my 10,000 subscriber celebration

I just hit 10,000 subscribers on YouTube! I just hit 10,000 subscribers! Nobody cares! I’m going to go to Ralphs, I’m going to buy a cake, we’re going to celebrate tonight! Oh my God, this is crazy! What’s up you guys, it’s Graham here. So I get asked all…

Finding definite integrals using area formulas | AP Calculus AB | Khan Academy

[Instructor] We’re told to find the following integrals, and we’re given the graph of f right over here. So this first one is the definite integral from negative six to negative two of f of x dx. Pause this video and see if you can figure this one out …

... and why!

More Articles