Everything posted by swansont
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Banned/Suspended Users
Ant Sinclair has been suspended three days for personal attacks and thread hijacking
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Banned/Suspended Users
Vvi has been suspended for abusing the PM system
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Comments on Moderation
Threads that end up in the trash are effectively locked; no further posting is allowed. This will happen for a variety of reasons. One common one is hijacking, where the hijacker has violated other rules (or has used up their goodwill) and the thread is not simply split off. (A warning point might accompany such an action, or it may be the last unofficial warning for repeated hijacks) If that's the case, this does not preclude other members from raising that topic of discussion in a new thread. If a thread has been trashed because it's clearly unscientific or otherwise nonsensical, then it should not be resurrected. We trust your judgement in this.
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Banned/Suspended Users
Philostotle has been banned as a sockpuppet of conway
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Banned/Suspended Users
thoughtfuhk has been banned as a sockpuppet of ProgrammingGodJordan
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Members in the Mod Queue
cheetaman has been added
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Artificial Gravity on the ISS
That's smaller than the dimensions of the ISS, which is > 100m long
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Artificial Gravity on the ISS
You would want the entryway to be moving slowly, so let's say that's one complete revolution every 12 seconds, or around a half a radian per second. Your central axis is 2m in diameter, so r is 1m. That means the ladder you need to grab is moving 0.5 m/s. That's probably the fastest rotation you can comfortably have. To get 1g at that rotation, the radius needs to be almost 40m long. The outer rim is moving 20 m/s, but you have your ~38 meter climb to transition to that speed.
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Artificial Gravity on the ISS
Not being a complete wheel isn't the issue. You take up almost 2m of space with a person standing somewhere with their feet at the center of the space station. Their bed is a little more than a meter away, and is moving >20 km/hr. You're going to injure yourself as you leap into bed and try to grab on to something, or when you get out and try to come to a stop. It must be a much larger radius for this to be feasible. You need to be able to e.g. climb up a ladder to transition to the faster speeds
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Artificial Gravity on the ISS
But as I showed, a small centrifuge has challenges. Your bed is going by you at >20 km/hr when you are at the axis. How do you get in and out? I would think a larger radius, to mitigate that problem and also use it for an exercise area rather than sleep.
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Banned/Suspended Users
Stevie Wonder has been banned as a sockpuppet of Mikemikev (and Sammy Boy, and probably also Over 9000 and Dave Davidson)
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Artificial Gravity on the ISS
A little over a 3 meter radius then. a = v^2/r You need a speed approaching 6 m/s to get 1g. Have fun getting into and out of bed.
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Artificial Gravity on the ISS
I assume you are suggesting something like the setup for the spaceship in The Martian. How big would the ring need to be, under reasonable assumptions of rotational speed?
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The Trump/Putin Alliance
! Moderator Note The DNC is not the topic of this discussion, as it is neither Trump nor Putin, and in perusing your link, it does not seem to support your assertions. But that all belongs in another thread.
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Banned/Suspended Users
Knight of Steel has been banned as a sockpuppet of Superpolymath and blue89
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Comments on Moderation
A reminder that someone downvoting your post is not something that is appropriate for a report. Reports are primarily for rules violations.
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Banned/Suspended Users
puppypower has been banned as a sockpuppet of pioneer/sunspot
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Today I Learned
Such items are known as sneeze guards in the US. https://en.wikipedia.org/wiki/Sneeze_guard
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Gun control, which side wins?
They think they are Rambo, or that such heroics are realistic
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Gun control, which side wins?
Comparable? There is only one country in black. The US. The number is over 100 per 100 citizens, and is almost twice the next country. In Canada it's a third of that (and they are not free from school shootings), plus they have more stringent gun control laws in place, e.g. background checks and waiting periods, not present in US federal law. And there's this little tidbit "According to the Congressional Research Service, as of 2009 there were roughly twice as many guns per capita in the United States as there were in 1968" https://en.wikipedia.org/wiki/Estimated_number_of_guns_per_capita_by_country And it's so easy to reach for a gun.
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Gun control, which side wins?
Which has not actually been established.
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Gun control, which side wins?
Here's a problem with this: these drugs aren't just used in the US. We can use pretty much the rest of the industrialized world as a control for our little experiment. If the drugs are the proximate cause, why don't we see this behavior elsewhere? The variable is the guns. They are not being blamed because it's easier. They are being blamed because that's where the evidence points.
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Banned/Suspended Users
NortonH is suspended three days for soapboxing (refusing to answer relevant questions) and thread hijacking (dragging dirty laundry from closed threads into active ones) And also for calling everyone a troll while engaging in trollish behavior. The suspension should give people time to do maintenance on their irony meters.
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Banned/Suspended Users
steveupson has been suspended for once again hijacking threads (i.e. talking about your own interests rather than the issues of the OP)
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Gun control, which side wins?
So IOW your expertise is as a participant, in one narrow area of law.