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4 Revolutionary Riddles

L0cky says...

Where's the solutions goddammit.

My guesses:

1) a pendulum.
2) 3x faster (this one seems too simple)
3) in this case forwards, but depends on the weight of the bike, and friction between the ground and the tyres?
4) Q2 and 3 of every wheel.

Solving By Using 'Extreme Case' Puzzles With Physics Girl

L0cky says...

The extreme case I thought of here wasn't about the balloon, it was about the air. Imagine the air was a lot denser... like water, or jelly.

I wasn't familiar with the term 'extreme cases' but use this all the time when making logical arguments, and think of it as exaggeration to help illustrate a point.

Unfortunately, while I think it makes it easier for me to visualize the point, people are often blinded by the comical nature of the exaggeration

"What do you mean if there were 10 zillion Chinese people on the island of Malta and 3 Brits had the Americas to themselves? The world should still learn English!"

(Someone trying to argue that even if Chinese was predominant, English would still be used in a larger geographical area, and me attempting to use exaggeration to illustrate that it's besides the point).

robbersdog49 said:

Problem 1: Tip toward the wood, as the wood will lose more buoyancy from the air than the lead.

As for the extreme case here, let's use the helium balloon. You tie the helium balloon to the right hand side of the scale. Now, to get the bar on the scale horizontal (balanced) you need to hang the lead weight closer to the fulcrum but on the right hand side of the scale too.

Now remove the air.

The balloon was only pulling up because of the air. Without the air it will hang down. So, we now have two things hanging down on the same side of the scale, so it's very obvious which way the scale will swing...

Problem 2: pi*20m Circumference = pi*diameter. Poles increase diameter by 20m. Really not sure where the 'extreme case' comes into this though?

lucky760 (Member Profile)

Everyday Products You've Been Using Wrong

Everyday Products You've Been Using Wrong

L0cky says...

Wait, people eat just apple sauce?

Is that like dessert after your ketchup entree, a main course of horse radish, and a warm glass of gravy?

How Rivets Work

Lawrence O'Donnell - What Constitution says about treason

L0cky says...

You're comparing logic to semantics.

Also being wrong on one point doesn't automatically make you wrong on all others, unless they are built upon that point as an axiom. In this case, none of them were.

Ralgha said:

Unfortunately, O'Donnell's credibility here was flushed down the toilet as soon as he complained that Boehner "has called Ed Snowden a traitor". According to common use of the word traitor, as well as the dictionary, you don't need to be guilty of treason to be a traitor. M-W defines traitor as "1: one who betrays another's trust or is false to an obligation or duty, 2: one who commits treason" How could anyone deny that Snowden has betrayed another's trust? Of course, WHOSE trust he betrayed and WHY is of critical importance (but not mentioned here).

So yeah, O'Donnell is correct when he points out that anyone who says Snowden is guilty of treason is not paying attention to the facts. But how is he himself any better when he applies this criticism equally to "treason" and "traitor"?

In case it wasn't clear, I'm not defending Boehner or the government. To the contrary - I wish O'Donnell and others like him would make more solid arguments. This one feels unnecessarily desperate/reaching and may serve to undermine his cause more than it helps it. (Could that have been his intent?)

oOPonyOo (Member Profile)

L0cky says...

It's the hand shake of a mobile network interfering with sound equipment. It's pretty common. Likely the person with the camera has a GSM mobile phone near it.

oOPonyOo said:

Question - anyone know what that sound is at 0:46 and again at 1:46? Some sort of interference? Dit da dit dit da dit, etc.

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