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The other joke and meme thread

Squint-eyed Southerner said:
Ahem.
Click to expand...
I'll take up the gauntlet and post a "joke" down in the Marianas Trench of cringeworthy stupidity.
The drivel the "comedian" spouted went about as follows:

"You know whenever you hear about a plane crash in the news, there's always talk about these black boxes that survive undamaged?
How stupid are those plane engineers? Why don't they just build the entire plane from the same material as the black boxes?!?"
 
Deimos said:
Oh, come now, my dear.... You are Gen Z, are you not?
Surely you can Google "moon diameter" and ascertain the accuracy of the pic info. 😉
However *sigh* I will do it for you .... 2159.1 miles. 🙂
Click to expand...
Thank you, good sir! Google can't always be a reliable source, can it? 😂
I thought I'd better check with someone who's closer to it than any of us here! 😉
 
Ohhhhh... I think I see what you are getting at.
The moon's apparent diameter is 1/2 degree (give a take a bit depending if it is at perigee or apogee).**
The sun's apparent diameter is also about 1/2 degree which is what makes the total eclipses possible.
Since the celestial hemisphere is 180 deg the moon apparently only covers 1/360th of the hemisphere (likewise the sun)
That is a pretty small fraction so it actually would be pretty easy to miss the moon.... no "screwing it up" required.

** To get an idea of how small 1/2 degree is, hold an aspirin tablet at arm's length... that is how small the moon (or sun) looks in the sky .
DO NOT DO LOOK AT THE SUN TO VERIFY THIS (DANGER, WILL ROBINSON! DANGER!)
(looking at the full moon compared to an aspirin is OK)
 
Last edited:
Deimos said:
OK back to the moon(s)....
Interesting... I knew Deimos was small, but not that small...

View attachment 34568
Click to expand...
Deimos is about 12 kilometers (7.5 miles) in diameter, Phobos about 22 km (14 mi). But Deimos is better off, being further away from Mars, while "Because the orbit of Phobos is below a synchronous altitude, tidal forces from Mars are gradually lowering its orbit. In about 50 million years, it could either crash into Mars's surface or break up into a ring structure around the planet. " (Wikipedia)
 
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