Humor Random Comments Thread

Third week as AMT apprentice has begun... after two weeks of (mostly) filing, we have two weeks of school.
Quite a nice place, I guess you rarely find schools which have an Alpha Jet in a classroom :P.
And tomorrow we can leave early for a fly-out event, the last complete Aircraft repaired in Erding (Tornado reg. 45+61) is leaving.

First thing I did after moving was a trip to Oberschleißheim:

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One for the DCS thread: Luftwaffe Canadair Sabre

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Blue Streak

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Living so close to a big airport is dangerous, I spent a big part of the last weekends behind and next to the runways in Munich :P.
 
Wow. I didn't expect such a big fly-out. In the end the leaving Tornado returned with some hydraulics problem, but Me 262, Bf 109, 3 Eurofighters, Transall, CH-53, multiple Tornados and the Civil Tojan and Yak (all flying) were amazing. You can expect some pictures and videos later...

---------- Post added at 23:12 ---------- Previous post was at 20:39 ----------

Local newspaper slideshow: http://www.merkur-online.de/lokales/erding/tornado-flyout-fliegerhorst-bilder-3866495.html

Not many pictures... but I took a lot of videos.

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45+61 before departure

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CH-53, departed a few minutes before the Tornado

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Is it just me or is the Kelvin scale completely stupid? "Alright, 100 units is the difference between water freezing and water boiling. And 0 is the unreachable temperature. Alright, common marks? Water freezes at 273.15 Kelvin. Water boils at 373.15 Kelvin. Your body temperature should be around 310 Kelvin."

It doesn't make any sense. It's just "Alright, we take Celsius without negative numbers because we don't like those." It doesn't make more sense than doing the same with Fahrenheit or Newton. If I'd have to make a temperature scale without negatives 100 Kelvin2 as the freezing point of water would seem much more logical. It just feels like a unit which was made for Fermi estimates where it doesn't matter, you take the next sweet round number anyway.
 
Is it just me or is the Kelvin scale completely stupid? "Alright, 100 units is the difference between water freezing and water boiling. And 0 is the unreachable temperature. Alright, common marks? Water freezes at 273.15 Kelvin. Water boils at 373.15 Kelvin. Your body temperature should be around 310 Kelvin."

It doesn't make any sense. It's just "Alright, we take Celsius without negative numbers because we don't like those." It doesn't make more sense than doing the same with Fahrenheit or Newton. If I'd have to make a temperature scale without negatives 100 Kelvin2 as the freezing point of water would seem much more logical. It just feels like a unit which was made for Fermi estimates where it doesn't matter, you take the next sweet round number anyway.

I don't know if you're being serious, but there *is* an absolute scale for Fahrenheit called Rankine. There's a lot you can't do without absolute temperature. And if your change in temperature is the same for Celsius as for Kelvin, that makes a number of calculations easier. Complain about Fahrenheit, and customary units as a whole, instead. :P
 
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℃ - 273.15 = K is more convenient.

and 0 K makes more sense than -273.15℃ for "absolute zero" (or "absoluter nullpunkt")
 
It also simplifies equations if your temperature scale is a direct equation, e.g. a graph of temperature goes through the origin. That's why we have scales that start at 0 for absolute 0.

Then, we just use the same interval as Celsius so you can do calculations with other SI units.
 
It doesn't make more sense than doing the same with Fahrenheit or Newton.

It really doesn't, except Fahrenheit doesn't make sense to me :P.

See, that's what I like Kelvin. I have an intuitive grasp for them without bothering much with conversions in my head, simply because they're the same units as degree C, just used on another scale. I don't have to learn yet another unit, only another reference point.
That the Americans and Brits are having trouble with it is understandable, though, but I blame it on them :lol:
 
This intrigues me. A Atlas V Phase 2 document I read (can't find it right now) makes mention that with twin RD-180 engines, it has engine-out capability.

How would it accomplish this, since it only has two engines? Are they referring to losing a combustion chamber (a nozzle) instead? Is that even possible? :confused:
 
This intrigues me. A Atlas V Phase 2 document I read (can't find it right now) makes mention that with twin RD-180 engines, it has engine-out capability.

How would it accomplish this, since it only has two engines? Are they referring to losing a combustion chamber (a nozzle) instead? Is that even possible? :confused:

Actually, it only has one engine. The two chambers share the same turbopump, but are otherwise independent. Sadly, 90% of all pump-fed engine failures take place at the turbopump.
 
Actually, it only has one engine. The two chambers share the same turbopump, but are otherwise independent. Sadly, 90% of all pump-fed engine failures take place at the turbopump.

I know. The regular Atlas V does. Phase 2, however, use two RD-180s (so 4 chambers/nozzles).

Also...saw this and immediately thought of Kyle.

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"Gee, Brain, what do you want to do tonight?"

"The same thing we do every night, Pinky - try to advance science by floating around."
 
You can't win; you can only break even.
You can only break even at absolute zero.
You can't reach absolute zero.

Well, this works for Android phones too:
You can't flash that custom ROM, you need to unlock your bootloader.
You can only unlock your bootloader if your phone is SIM unlocked.
You cannot SIM unlock.

Damnit people! Why can't I use my phone the way I want?
 
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