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Everything posted by razark
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So, you have a plane on a conveyor belt...
razark replied to Randazzo's topic in Science & Spaceflight
So, in effect, since there's no force holding the plane from accelerating, the treadmill and wheels are constantly accelerating to the point that physics no longer matters, and the plane takes off because it no longer needs to obey the law of gravity. In short, the problem asserts a condition that cannot occur, and the reality of a plane on a treadmill results in flight. -
So, you have a plane on a conveyor belt...
razark replied to Randazzo's topic in Science & Spaceflight
Well, of course it wouldn't. The pilot would pass out from the spinning. -
So, you have a plane on a conveyor belt...
razark replied to Randazzo's topic in Science & Spaceflight
So the video of it happening is faked? Yes, airflow over the wings produces lift. The point is, there's nothing holding the airplane from moving, it will accelerate, air will flow over the lifting surface, and the plane will take off. -
So, you have a plane on a conveyor belt...
razark replied to Randazzo's topic in Science & Spaceflight
How? The wheels of the plane are unpowered. The thrust comes purely from the engines. Which one? The KSP one, or the one that actually shows a plane taking off from (what is effectively) a treadmill? -
So, you have a plane on a conveyor belt...
razark replied to Randazzo's topic in Science & Spaceflight
The wheels are freely spinning. Airspeed matters to flying an airplane, not groundspeed. If an airplane with a low enough stall speed is flying into a steady headwind of sufficient speed, it can move "backwards" from the ground's perspective. Please explain why the speed of the wheels affects the aircraft's speed. Thrust pushes the plane forward. To keep the plane from moving, there must be some force to counteract thrust. The wheels spin freely, being unconnected from anything. Where is the force to stop the plane coming from? -
So, you have a plane on a conveyor belt...
razark replied to Randazzo's topic in Science & Spaceflight
Except there's nothing holding the airplane in place, so it will move forward, and the wheels will spin faster. Once the brakes are off and the engines throttle up, the airplane will accelerate until it reaches flying speed and leaves the ground. How fast the wheels are spinning doesn't matter a damn to aerodynamics. -
So, you have a plane on a conveyor belt...
razark replied to Randazzo's topic in Science & Spaceflight
Then the plane will eventually gain enough speed to take off, as there is nothing stopping the wheels from spinning freely. -
So, you have a plane on a conveyor belt...
razark replied to Randazzo's topic in Science & Spaceflight
Oh, yes I do. -
So, you have a plane on a conveyor belt...
razark replied to Randazzo's topic in Science & Spaceflight
Yes, because the thrust from the engines will give the plane positive airspeed, regardless of the speed of the ground. -
At 0:37, he picks up and shows his Crew Notebook from one of his shuttle flights, including some of the internal notes. This is technically a document from the U.S. Government, and classified by the agency as "Scientific and Technical Information". Such information requires review to see if it is appropriate to release to the public, and further, non-US citizens. Someone raised the question whether the inclusion in this course would require approval for release of that information. Imagine if the information got into the hands of a member of the public, or possibly a foreign national! Such as, for example, a private Canadian citizen...
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Huh. I guess they finally did settle the Export Control question.
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Not necessarily true. You are assuming that the killer killer is not already a killer.
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You seem to have misspelled "That Which Shall Not Be Mentioned (or, gods forbid, screenshotted)". Of course, it's an easy typo to make, so we can forgive you.[1] [1]Unless you do post a screenshot. Then we start handing out the torches and pitchforks.
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Not likely. I've been waiting for the fad to die down since the mid-'90s.
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I would like Squad to add features that are only available to people that do not have KSP on Steam.
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My guess as to the reason that families gathered together to watch it was because there was only one TV in the house to see it on. That's just not the situation anymore.
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totm aug 2023 What funny/interesting thing happened in your life today?
razark replied to Ultimate Steve's topic in The Lounge
If you're only going to have one cup of coffee, might as well make it a good one. -
About 70-80% of forum users, usually.
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See my previous post about printing the disk encryption key on a sticker attached to the machine...
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It's all in the name of security. Something about sensitive data on unsecured machines. Of course, not all data is sensitive, but why do a sensible thing when you can go overboard and muck up thousands of workers at once?
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I told my co-worker that if I don't show up one day, it's probably because I'm sick and can't email to let him know I won't be in, and I also can't call to let him know, because that would be connecting my personal phone to his agency desk phone. One of these days, I'll manage to talk him into joining my campaign of malicious compliance.
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Co-worker just got back from a meeting where this was discussed. Apparently, agency devices will have a certificate installed. Without the cert, you can't connect either directly or through VPN. The way it's worded, you can connect an agency device to a non-agency device, but you are forbidden to connect a non-agency device to an agency device. They will also set up the "Guest" wireless network, so that any machine with the certificate cannot connect to it. Except for some International Partners, who will be able to connect to the Guest network, and VPN in to the agency network with non-agency devices. Of course management types all have laptops, but those of us tied to desktops are going to be out of luck. And yes, we will no longer be able to access our email from home.
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1. Personally owned devices are soon to be banned from being used for teleworking. (There is some question as to whether this means we cannot use webmail to check our email.) 1A. Any teleworking will require agency issued equipment. 2. Working from home is not a valid reason for being issued agency equipment. 3. The center encourages teleworking every other Friday, to the point of switching buildings to weekend mode (reduced lights, no AC, etc.). D. All portable equipment must be protected with full disk encryption, in case the device is stolen. E. "The PIN to unlock encryption is the Asset Number printed on the tag attached to the computer."
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totm march 2020 So what song is stuck in your head today?
razark replied to SmileyTRex's topic in The Lounge
If you're going to sing the periodic table there is only one tune that is appropriate: -
It really does. How long have you been around? Were you here for the 1.0 release? This is nothing compared to what was gong on back then. You said Squad should release the fix that a forum user had posted. You seemed to be saying that Squad should release that NOW and fix other stuff later. I guess I read that wrong. Now, if Squad did do so, then they would be releasing another patch shortly after to deal with other issues. So, which is it? Fix the stuff in one release, or get it right once and not release a bunch of sequential fixes? (And then break something else, so you can sit around waiting for them to release a patch to fix what got broken by the last patch ?) Sounds like a better plan than worrying too much about a video game. While they did fix the Steam-only problem, I don't see, given their track record, why anyone would expect this to change. When they released the much hyped and vaunted 1.0, you couldn't even re-enter a capsule with a parachute on it correctly.
- 637 replies