Impossible quiz

The wonderful thing about tiggers, is that tiggers are wonderful things.......

 

Their tops are made out of rubber, their bottoms are made out of springs....


Is that how they are really made?

 

......................................But the MOST wonderful thing about tiggers, is that he's the only one!

 

The answer to your first question is in the title of this quiz.. The Impossible quiz. :roll:

I didn't think asking what was the largest member of a fresh water pufferfish family would be that difficult.

 

I feel slightly ashamed, marinebiology is my area, yet I didn't have the faintest clue.
Shouldn't be to hard to track down the answer, but I'm afraid I do not simply know it.
Just a thought though, is it the inflated member?

 

http://www.fun-online.sk/forum/viewtopi ... ght=#79339
scroll down to my entry....

 

The answer was indeed the Giant fresh waterpuffer or the Mbu (umboo)

Simon and I have had 2 of these beauties in the past. They are incredible fish and I hope to have another sometime in the future.

Oli you made me laugh when you typed the answer on the 3wds. You cheeky wee monkey :lol:

 

It's been there ages, I was checking how observant people were...
Assuming it's my question now (forgive me if it's not)

How do you stop a train (or any moving vehicle) with a ball bearing?

(A good one to start arguments)

 

Remove the ball bearing from some axle/wheel component?

 

Given that on a good enough line trains can easily do 125mph, throwing one at the driver's compartment can do the trick if it hits the right area (Or wrong area from the point of view of the driver).

 

Nope, to both.
It's not about hitting the driver, or removing the bearing from any part of the vehicle.
Complete vehicle, and you start with the ball bearing in your hand...

 

Drop it in the fuel tank?

I guess a lot depends on what size ball bearing and speed or size of said vehicle too. A big enough Ball bearing secured to the track would derail a train that was travelling fast enough, but I'd bet that wasn't the answer you're after.

What sort of size vehicle are we talking about here? My son has an R/C car about 1 1/2" long or are we talking something more the size of an Aircraft carrier? Either are "moving vehicles". :-?

 

You stand in front of it and bare your balls?

 

This is where the argument starts
Strictly speaking, any size "ball bearing" (or other object, even a frozen pea) you like, and any size moving vehicle - literally (even a planet!). It's a physics/ logic question that I still haven't resolved despite asking dozens of physicists.
But just work on the logic....
Speed is totally irrelevant.

 

Oh well, that's me totally scuppered. I can not think logically... BooHoo

 

Don't get me started on females and logic :lol:
Do you know the only thing worse than a male chauvinist? (That's not the quiz question, BTW).

 

If impact energy is mass x velocity, then if (mass x velocity) = (mass x velocity) the two should cancel one another out, so in theory to stop a 10,000 tonne train moving at 90mph all you have to do is fire a garden pea at it at a high enough velocity to counter the mass of the train.

Now, I know Oli said that speed is irrelevant and I'm trying to remember stuff I learnt at school over a decade ago, but this is the only thing I can think of. :-?

 

Nope, but you're getting closer. Forget the numbers altogether. What happens when the ball-bearing hits the train?

 

It bounces off.

 

You're on the right track (pun not intended). What must it do before it rebounds?