A brick.
If this one already made an appearance on here, I’m sorry. Just got reminded of it while thinking about idioms for hefty books, in english I couldn’t find any. In my first language we would say “it’s a brick”
Alt version of this joke:
What's red and good for a cop's teeth?
Correct! A brick!
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That is an anti-joke, not a dad joke. But it is funny and tangential. I tell it frequently. Another:
What’s blue and tastes like red paint?
Blue paint.
What’s blue and bad for your teeth?
Answer
A really, really fast brick!
Explanation
The Doppler shift for fast moving objects moving towards the observer makes them appear blue due to the shortening light wavelength.
Also bad for the entire earth, at that speed.
I’m certain there’s someone out there who can tell us what speed, probably a percentage of the speed of light, an average brick needs to move at in order to blueshift to looking blue. And I’m also certain there’s someone out there who can tell us what collateral effects that’ll have on the rest of the world.
The formula is wavelength shift over the normal wavelength, multiplied by c. Red is let’s say around 600nm and blue is 450. That makes it 150/600. So about a quarter of the speed of light. My initial thought is 2kg mass traveling at a quarter speed of light would probably have a fuck ton of energy that its collision with the atmosphere would not result in friction but a big kaboom.
The formula for kinetic energy is
KE = 1/2 * m * v2
where m is mass in kilograms and v is velocity in meters per second. Since we already have all of the values, it should just be a quick calculation.
KE = 1/2 * m * v2 = 1/2 * 2 * (299,792,458/4)2 = 5.6*1015 Joules
According to Wolfram Alpha, 5.6PJ is about 60% the impact energy that formed Meteor Crater in Arizona .
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What’s yellow and can’t swim?
answer
An excavator.
don’t be so sure
I’d say that’s closer to rowing, but I guess…
Also, that particular excavator is orange, so the previous point still stands 🤓
How often are bricks actually red?
In my area? Red seems to be the default colour for bricks.
Nearly always here.
Its a design choice to have them any other colour.Depends on the red clay content in the ground of the given area.
Around here, always.
