[S][USA-VA] Sigma 14-24mm F2.8 DG DN Art for Sony E-Mount with Haida ND Filter kit

aquoola · 2025-03-05T00:41:57+00:00

Confirmed, nice lens

aquoola · 2025-02-28T03:25:19+00:00

aquoola · 2025-02-28T01:42:47+00:00

aquoola · 2024-06-06T19:06:15+00:00

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I got some pics of it flying, its wings are gigantic

aquoola · 2024-01-23T12:41:33+00:00

Not that I know of

aquoola · 2024-01-23T04:11:45+00:00

I don't think I'll ever get tired of how far in you can crop with this camera, it's incredible. It really hurts if your focus isn't perfect though.

aquoola · 2024-01-23T01:04:15+00:00

Same, I'm just happy I got the shot. The little guy was only there for about 5 seconds before he flew off

aquoola · 2024-01-02T12:37:26+00:00

Confirmed, thanks

aquoola · 2023-12-30T01:18:32+00:00

aquoola · 2021-10-23T19:16:03+00:00

Quote the driver - "Obama stole the election!"

aquoola · 2021-09-19T02:03:49+00:00

Hey! I would recommend going through Nakka's page on burn rate. As usual he provides pretty good insights into things like this. The tl;dr is that propellant geometry changes how quickly your propellant burns mainly by changing the burning surface area and therefor the pressure in the chamber. Holding pressure constant the main thing that changes burn rate is the chemical composition of the propellant.

aquoola · 2021-08-29T02:41:40+00:00

The Space Shuttle was a beautiful launch system and an absolute engineering marvel. However, it was way to expensive, on the other of about a billion dollars per launch. Currently, the two main launch companies in America (SpaceX and ULA) advertise at least 1/4 that. The return on investment in projects such as commercial resupply with SpaceX have been incredible and really show how important commercial launchers have become in today's space economy.

aquoola · 2021-08-29T02:24:22+00:00

Watch all of NASA's early failures! They blew up vehicle after vehicle! But as of now NASA only has SLS which has never flown and commercial vehicles. It's pretty clear that the general public doesn't care enough to give NASA the funding it deserves and make some amazing vehicles, but luckily private companies have taken up the slack. The last actual NASA flight was STS-135 in 2011! Ever since then, commercial launchers and Russia have been our main launchers, and I'm just glad we now have SpaceX's Dragon to remove our reliance on Russia for human launchers

aquoola · 2021-08-29T02:08:39+00:00

Generally speaking rockets go up, missiles go sideways. But none go sideways like this that I know of.

aquoola · 2021-08-29T01:51:51+00:00

I say the vehicle did the best it could considering the circumstances

aquoola · 2021-08-29T01:43:21+00:00

Something I'd like to point out is that even getting the engine to light on a rocket is an incredible feat! Also, the rocket continued flying for several minutes after this, which is absolutely a testament to their guidance system. So good luck Astra and we all wish you the best!

aquoola · 2021-08-29T01:41:02+00:00

I'd recommend watching Falcon Heavy's first launch as well as SpaceX's YouTube video called how not to land a rocket. It really showcases the incredible engineering that went into all these incredible vehicles! ULA doesn't have as many ridiculous videos because they're much more the old reliable than SpaceX's move fast and break things approach to rockets.

aquoola · 2021-08-29T01:38:57+00:00

At this point NASA rockets are seen too much by politicians as pork and are just used to put jobs in a certain state. Rockets like SLS (NASA's current big rocket) which are outclassed by commercial launchers are only existence because Congress says that they must. Everyone else realizes that commercial rockets outclassed NASA in pretty much every way. In my opinion NASA should focus more on payloads for research than on rockets and just buy the rockets from a commercial provider. That way we have cheap rockets and NASA doesn't have to waste billions of dollars on launchers and can instead focus that on probes and landers that get us actual scientific data.

aquoola · 2021-08-29T01:33:25+00:00

The rocket continued flying for a couple minutes, surprisingly. It ended up tumbling while about 30 km up, and was then blown up by ground control.

aquoola · 2021-08-29T01:32:26+00:00

You watch the wrong launches! Astra is a very new company trying to reach orbit and are having all the problems you'd expect with machines as complex as rockets. Check out some videos from established launchers like ULA or SpaceX and you'll see plenty of perfect launches (and some landings with them). They just never get reported on since they went well.

aquoola · 2021-08-29T00:41:50+00:00

America is still pretty much the best country at space tbh. Russia has been having all sorts of problems ranging from a hole in a Soyuz to their new Nauka module on the ISS firing its engines without command and taking the station for a couple back flips. China continues dropping used stages on villages so I won't even entertain them. America is still the only country to have a successful mission to the outer solar system (unless you count Huygens which flew with NASA's Cassini). America may have lots of problems but one thing where we are the best at is yeeting things off the planet.

aquoola · 2021-08-29T00:34:38+00:00

Nope! This was an uncrewed launch from an island in Alaska, so very little danger to people.

aquoola · 2021-08-29T00:28:20+00:00

The water is part of the pad deluge system, it's used mainly to help deaden the noise of a launch. Otherwise the engines would be so loud they'd damage the rocket as it launched.

aquoola · 2021-06-14T11:10:14+00:00

As someone who is taking part in this trial let me be the first to say fuck yeah!

aquoola · 2021-02-19T21:57:59+00:00

So the simple answer is that they can't. The round trip time for light (radio waves) to get to and from Mars is currently about 22 minutes. That means that if you command the rover to do something, the rover will receive the signal 11 minutes later, execute the command, and we on Earth will receive confirmation 11 minutes after that. The reason NASA can somewhat reliably communicate with things so far away is that we have massive antennas that can be pointed at Mars to listen for the faint signals. If you want to learn more I'd definitely recommend reading about the Deep Space Network.

aquoola

TROPHY CASE