Humor Random Comments Thread

Problem: You run at 6 m/s on the road and 4 m/s on the grass. You are running from A to C across the rectangular ABCD field. The AB side is the road, and the ABCD field is made of grass. Find AM so that she can run in the shortest time possible.

My (elegant) solution:
35555578777fa16831ae16895cf5509d.gif

(From top to bottom: AM length, MC length, total length, time on road, time on grass, total time)

Yay computers (and GeoGebra) !

EDIT: Recorded the screen to find the best possible value with a ~30cm accuracy:
849b555a6a8b9419402b6ce7cd89f0b8.png


To say that was homework given 2 weeks ago. Nailed it !
 
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I sometimes see the words "thermal paste" when people talk about building custom PCs.

That worries me, because it sounds like something that will make a big mess and completely ruin your build if you make the slightest mistake. Like if you accidentally squeeze too much.
 
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I sometimes see the words "thermal paste" when people talk about building custom PCs.

That worries me, because it sounds like something that will make a big mess and completely ruin your build if you make the slightest mistake. Like if you accidentally squeeze too much.

Yes. Luckily, its not the case, but the scary stories really help keeping the attention up.

Thermal paste is pretty easy: Squeeze a bit on the conductor pad, distribute it evenly in an even film and then mount the CPU cooler without rubbing the paste off the cooler pad. You don't need much of it - you only need enough that after installing the cooler, all possible gaps between CPU case and cooler pad are filled it it.
 
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Ahh heat sink compound. The bane of several "nice" articles of clothing. (it does wash out, just a mild embarrassment during work hours).

Seriously though, to use an old advertising slogan "a little dab'll do you".
 
That worries me, because it sounds like something that will make a big mess and completely ruin your build if you make the slightest mistake. Like if you accidentally squeeze too much.

There's not much that can go wrong or can get ruined, but it is a bit tricky to do a really good job. Have a bit of cleaning alcohol ready (above 95%, you don't want any water residues left there) to wipe the chip before applying new paste, and don't touch the stuff with anything greasy (like your fingers).
 
Problem: You run at 6 m/s on the road and 4 m/s on the grass. You are running from A to C across the rectangular ABCD field. The AB side is the road, and the ABCD field is made of grass. Find AM so that she can run in the shortest time possible.

My (elegant) solution:

That's not elegant, that's sloppy. Find the solution with infinite accuracy and that'll be elegant.

It's doable and without a computer.
 
That's not elegant, that's sloppy. Find the solution with infinite accuracy and that'll be elegant.

It's doable and without a computer.

Well that was irony, of course I could do much better; and in fact I did because it felt this was too easy. So 2-3 WolframAlpha queries later (our current level having limited derivation capabilities), I find the exact answer to be [math]100-8\sqrt{5}[/math], which approximates to 82.115 m.
 
I finally did something smart and downloaded Firefox...the ghost of Netscape yet haunts the Web.

Now I can live with my Vista machine for just a bit longer...

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Something cool. On a lark I decided to do a search on the tail number of one of the planes I learned how to fly on, and found a photo! Keep in mind it's been about 2 decades or more since I actually saw this plane in person, so I wasn't even sure if it were still around. But I well remember flying solo in it many times on the way to earning my certificate.

859012.jpg


I would have to dig up my log book to figure out if this is the bird I solo'd in or not, but it was one of the ones at the flight school that always seemed to be available when I showed up to log time. I'm guessing she's probably changed owners a few times by now, but still had that red stripe paint job.
 
Looks very smart, used to go up with a friend when he was flying, great fun.

N.
 
but it was one of the ones at the flight school that always seemed to be available when I showed up to log time.

So what's that like, to always have a plane available for flying lessons?

Me? No, I'm not bitter. Not bitter at all...

:chainsaw:
 
So what's that like, to always have a plane available for flying lessons?

Me? No, I'm not bitter. Not bitter at all...

:chainsaw:

It wasn't just a flight school, it was a place in North Carolina where you could rent a plane by the hour and they also had instructors to give lessons. "Charlie Alpha" as we used to call her, was, IIRC, owned by some guy who leased her to the rental place.

They had a few other C-150's and C-152's as well, but CA always seemed to be in good shape and clean inside.

One of them had an electrical issue one day; we had to start the engine the old-fashioned way by hand-spinning the prop (feet on the brakes, please!), and the battery wasn't charging so we scrubbed the flight and sent it to the shop.

I think if you live in a densely populated area you'll have more trouble finding a bird.

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N7, huh? :lol:

I'm not following?

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Also, seeing that photo makes me want to start flying again soooooo bad....
 
The plane I'm taking lessons in (34Q) is also rentable by the hour. Two instructors also use it to give lessons. Last summer there were 20 of us on the roster, which meant that between lessons and rentals, she was hitting her 100 hr inspection about every 3-4 weeks.

They've been doing various upgrades over the past 6 months, so there has been a significant amount of downtime where the weather was good, the instructor and I were both available, but there was no plane.

Adding the G430 was nice. The paint really wasn't that bad, but they wanted it to match the rest of their 'fleet.' You see the company that runs this particular school is a local corporation that also owns a Citation, a KingAir, and a Saratoga. Those three have the same paint scheme, so they wanted 34Q to match. She was supposed to be gone for 2 weeks, but ended up being gone for 6 1/2.

I get that they want to have a nice plane for rentals, but none of the upgrades involved safety or usability as a trainer. The students are most of their income as a flight service, and we pretty much got put on the back burner.
 
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Looks and cleanliness count for something though, pride in ownership and upkeep gives confidence to renters and passengers.

A friend of mine out in Sunnyvale, CA is part owner of a 1950's Beech Bonanza V-tail, and when I first saw the plane it had just been repainted, reupholstered, and the avionics were all modernized. It may have been from the 50s but it looked like it was bran new and thoroughly modern. He took us for a ride in it up and down San Fransisco Bay and over the lit-up city skyscrapers at night. What an awesome plane, compared to a C-150 it was all power and comfort. He let me fly it for a bit. Just beautiful. I have a pic of it somewhere...

---------- Post added at 02:35 PM ---------- Previous post was at 02:31 PM ----------

Found it:
picture.php
 
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