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Author Topic: The Science Thread  (Read 16190 times)

Noodles

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Re: The AeroSpace Thread
« Reply #45 on: June 29, 2015, 05:26:27 PM »
Quote from: Troposphère on June 29, 2015, 05:15:34 PM
[stuff]
The Piaggio does look really neat! I like the canards/nose-wing-things. Also how "looking fast/cool/efficient" and "being fast/cool/efficient" are often pretty close together.

I don't have a whole lot of experience with planes, but the light-aircraft thing sounds really neat.
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Troposphère

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Re: The AeroSpace Thread
« Reply #46 on: June 29, 2015, 05:36:46 PM »
Quote from: Noodly Appendage on June 29, 2015, 05:26:27 PM
I like the canards/nose-wing-things. Also how "looking fast/cool/efficient" and "being fast/cool/efficient" are often pretty close together.

In my opinion the latter implies the former but the opposite is often wrong. The website (in French) where I firs heard about the Piaggio was actually explaining why canard aircraft are a bad idea in general.

It works well on the Piaggio P-180 because it's not a true canard as the stability is done with a classical horizontal tail. The forward surfaces are here because they had to put the wing behind the cabin so they needed something to generate lift on the nose to compensate. But the combination main wing + "canard" really act like one classical wing.
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DB (f.k.a. DaveBro)

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Re: The Space Thread
« Reply #47 on: July 05, 2015, 08:43:33 AM »
Quote from: BreezeLouise on April 25, 2015, 01:57:39 AM
Thank you for making this, I was starting to feel kinda bad.

I know it's not actually space-related, but I've been wanting to try to make a small, simple turbojet or pulsejet as soon as I get some income. I expect it to end poorly, but it'd be so cool even just to make something that runs for a few ... >snip!<

If YouTube wasn't the source of your inspiration, there are how-to videos (and some cautionary failures) just by searching for 'jet go-kart'.  I browsed into it by way of looking at Stirling engines.   :)
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Guardian G.I.

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Re: The AeroSpace Thread
« Reply #48 on: July 14, 2015, 03:12:15 PM »
NASA's New Horizons probe is now headed away from Pluto and Charon after its closest approach today. Now, it'll start transmitting gigabytes of data to Earth - full transmission would take more than a year.

Spoiler: One of the latest photos of Pluto • show

Spoiler: Footage by the Hubble Space Telescope vs. footage by New Horizons • show


It took nine years for the probe to go that far.
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JoB

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Re: The AeroSpace Thread
« Reply #49 on: July 15, 2015, 06:51:07 PM »
Quote from: Guardian G.I. on July 14, 2015, 03:12:15 PM
NASA's New Horizons probe is now headed away from Pluto and Charon after its closest approach today. Now, it'll start transmitting gigabytes of data to Earth - full transmission would take more than a year.
No comment on that big honkin' "Derpkitty wuz here" sign? ;D
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DancingRanger

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Re: The AeroSpace Thread
« Reply #50 on: July 15, 2015, 06:59:54 PM »
Quote from: JoB on July 15, 2015, 06:51:07 PM
No comment on that big honkin' "Derpkitty wuz here" sign? ;D

I didn't notice the heart! Omg!
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JoB

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Re: The AeroSpace Thread
« Reply #51 on: July 15, 2015, 07:07:51 PM »
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DB (f.k.a. DaveBro)

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Re: The AeroSpace Thread
« Reply #52 on: July 15, 2015, 08:38:07 PM »
Quote from: DancingRanger on July 15, 2015, 06:59:54 PM
I didn't notice the heart! Omg!

Further interpretation by a celebrity physicist reveals new meanings and data!
Spoiler: show

Sadly, there appears also to be some Coronary Artery Disease:

« Last Edit: July 16, 2015, 03:24:44 PM by ReturnOfDaveBro »
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Sunflower

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Re: The AeroSpace Thread
« Reply #53 on: July 15, 2015, 09:22:10 PM »
Quote from: ReturnOfDaveBro on July 15, 2015, 08:38:07 PM
Further interpretation by a celebrity physicist reveals new meanings and data!

pppfffftthhhHAHAHAHA!!!  That's brilliant.  Of course it's XKCD.   ;D
I especially like the "full text of the Wikipedia article on pareidolia."  Not to mention the Debate Hole. 

Thanks for sharing, DaveBro!
« Last Edit: July 16, 2015, 05:05:07 PM by Sunflower »
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Troposphère

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Re: The AeroSpace Thread
« Reply #54 on: July 16, 2015, 02:28:27 AM »
New pictures with more details!

3500 m high mountains

Spoiler: show




And the moon Charon with 7-9 km deep canyons (whaaaat?)

Spoiler: show




They say these images are compressed so that they have been uploaded quickly to Earth and the non-compressed versions will be transmitted later. It amazes me how we can transmit data from a probe 4 billions kilometers away with probably very limited power. They are using a 70 meters wide antenna on Earth…
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Noodles

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Re: The AeroSpace Thread
« Reply #55 on: July 17, 2015, 07:08:40 PM »
*LOUD SCREAMING*
Pluto!!!!
(also, yes, the xkcd is hilarious. As usual.)
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DB (f.k.a. DaveBro)

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Re: The AeroSpace Thread
« Reply #56 on: August 24, 2015, 01:28:53 PM »
Quadcopters can hang it up:  Georgia RC Model Jets feature tiny turbines!
Many cool photos and videos on the site.   ;D

Also, the club is hosting a fly-in September 24-27, 2015, south of Atlanta near Gay, Ga, 30218.
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DB (f.k.a. DaveBro)

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Re: The AeroSpace Thread
« Reply #57 on: October 02, 2015, 02:04:18 PM »
Should I apologize for double posting?  See The Martian and let me know!   8)
http://www.schlockmercenary.com/blog/the-martian-movie-review
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meshebe

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The Science Thread
« Reply #58 on: November 04, 2015, 02:46:42 PM »
It seems that there may be a few other science nerds out there in the crowd, so I decided to start this thread!  (And, if you're not a science nerd, you can always become one!  All you have to do is love/enjoy science!)  We can share our favorite science things, science news, and just talk about science-y things in general! 

I'll get things rolling with my favorite science thing ever:
This image of a molecule...


A) An image drawn by scientists of what the molecule should look like...
B) An image taken with scanning tunneling microscopy
C and D) Images taken with atomic force microscopy

We can actually see molecules!  I love it. 
PS there are tons of awesome images taken with scanning electron microscopes as well...
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Double H

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Re: The Science Thread
« Reply #59 on: November 04, 2015, 03:28:24 PM »
Speaking of electron microscopes and science in general.


This is my favorite science focused youtube channel.
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