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Everything posted by blike
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I like the Copernhagen interpretation, but only because it appeals to me, not because of any sort of evidence. Wheeler's delayed choice experiment is a bit creepy though
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Copernhagen Interpretation Many World Interpretation Pilot Wave Interpretation Time Reversibility Transactional Interpretation Other ->
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Seems as if an unfertilized ostrich egg is the largest single cell! (google told me)
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I'll post a few as soon as I get dave's mimetex module fixed :-D
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I doubt you'll want to use a low power kit (A-D) to boost up electronics, because you probably wouldn't get very high. It might get off the launch pad, but with a struggle. I used a D12 engine on an "Estes Blue Ninja" to boost my first rocket. It only reached maybe 200ft (60m) max. [as a general rule, the thrust of an engine doubles with every letter. i.e. B is twice as powerful as A]. I would recommend using an aerotech midpower kit. They're a bit more expensive, but they're also a lot stronger and are designed for E-G engines. You can see their rocket lineup here: http://www.aerotech-rocketry.com/customersite/products/kits/kits_index.html You've probably already seen it, but here's my rocket launching on a G-40 engine. I don't know the laws where you live, but here in the states, you have to be a certified member of a rocketry association to buy any engine over G-class. To get certified you have to successfully fly and recover a high-powered engine in the presence of two other certified members. I believe you can purchase one highpowered engine without being certified. If you want to get up to around 2500 feet, this rocket will get you there on a G-class engine. The nice thing about it is that it comes with a payload bay. Otherwise you're going to have to make your own so that the hot ejection gasses don't damage your hardware (I put mine in the nosecone). However, you're limited by the diameter of the rocket. If you need larger diameter, you're going to have to sacrifice some altitude [unless you go highpower].
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What are your rocket specs and what motors you plan on using?
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What do you pain to get them? Do you need a special license or something? I almost bought a hi-power transmitter, but the FCC over here requires that you have a HAM license, which I don't feel like getting. So I just ended up buying the low power one and some big receiving antennas
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There are manufacturers who sell altimeters with onboard capacitors [for ejection] for around $120. You still have to design your own ejection system [charges, segmentation, etc], but it takes care of discharging at a specified altitude. They are also programmable to disarm around mach1 until the pressure wave passes. I'm going to purchase one as soon as possible, but I don't have the cash on me at the moment. I just purchased a 2.4GHz wireless camera and receiver for around $100. The range is only 500-700ft in open air, but with a 24dBi grid dish, I should be able to clear well over 5000 feet. I just finished building the rocket and installing the camera. I'm just waiting on some cash to buy the antenna and the necessary hardware to record the video feed onto a laptop during launch. My long term plan for this rocket is to modify it to accept H or I class engines. These would boost it well over a mile high [and maybe over mach1]. The rocket is 39 inches high and 2.6 inches in diameter. It's designed for E, F, and G motors. I'm going to do a test launch in about a month to around 2100'. I was thinking about doing onboard movie storage again, but that obviously requires recovery of the rocket, which isn't guaranteed. Plus, the actual camera is only around $39, in case the rocket were to CATO. How many rockets have you launched before? I take it you've flown a few. If not, you might want to build some and test fly them with various centers of gravity. One thing you're going to want to do (especially for video) is eliminate rocket spin. That will cut down on the forces experienced and make for a better video. How big is your field, and how big is the rocket you plan on launching?
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I don't really know off hand. How many G's are you talking about? My first video rocket (using the onboard memory camera) only underwent around 5 Gs and it worked fine. My last video rocket underwent around 21.8 G (max), and the hardware failed. I'm pretty sure the failure was due to the impact during recovery, but I can't rule out that it failed during takeoff. I don't think you'll have a problem with non-moving parts (as long as the forces aren't too extreme). Anything that is connected to another piece via pins or ports need to be secured. I'm sure you've thought of this, but the recovery can be just as turbulent as liftoff in some cases. For my last rocket, I ran a piece of elastic from the nosecone to the body tube, and then attached the parachute in the middle of this elastic. That was a very bad decision because the whole assembly came down spinning so violently that the fins broke off the body tube when it hit the ground. What sort of flight management are you planning?
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I wouldn't mind dying via nuclear explosion, as long as I was close to the center of the blast and vaporized instantly. Other than that, lethal injection or dying in your sleep isn't a bad way to go. To me, what would make a death a "bad one" is one that you forsee and/or spend a lot of time in the process of dying or in pain. Edit: That's to my 20 year old self. I know many terminal patients patients may have a different opinion on a good death.
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I don't think I need to see other examples. A man who rapes and kills a mother in front of her young children and then proceeds to murder them has no value left here on this earth, and I have no desire to purchase him cable television and 3 meals a day in prison for the rest of his life with my tax money. It's justice, not a deterrent.
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Indeed. That doesn't eliminate the need for it though. No, I don't believe texas criminals were twice as bad. They're just more likely to hand out the death penalty. You're right about second and third trimester, but there are still people who support "Woman's choice" at any time during her pregnancy. In any case, I don't understand why it's a woman's choice to murder an innocent unborn child, but the government has no right to execute murderers. Sure, one can make the argument that innocent men are being put to death in our system. However that's not an argument against the death penalty, rather it's against an unjust system. There are instances in which people have been convicted without a shadow of a doubt, or when someone has confessed. Hope I didn't just strawman there, but that's the argument I commonly hear. I'm not necessarily attributing it to you or anyone else on the forum.
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Not necessarily a debate, just a discussion I don't believe capital punishment should be banned. I was curious as to how people can justify holding both beliefs.
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Am I the only one who sees a dichotomy in believing abortion should be legalized (specifically second and third trimester), and capital punishment should be banned?
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HAPPY BIRTHDAY!!!
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Was there life ever on Mars? I say yes! And they were GOATS!
blike replied to ExtraSense's topic in Trash Can
Rofl -
Actually, they let cars drive on the new asphault within an hour or so. In the city they can't just shut down roads.
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I agree with Pethorr. Xe will have 3 lone pairs and two bonded pairs which results in a linear conformation.
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I heard it was reasonable as well from a few people.
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He'd be a novelty, and subject to scientific research all his life.
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I guess the real question is: Are there any true constraints, other than the processing capability, to using physical laws to predict the future?
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Report: U.S. losing ground in science education
blike replied to Ms. DNA's topic in Science Education
Good question skye. I was just pointing out that I don't think its a major hinderance to a good scientific education. -
For John so loved the MCAT that he gave his only begotten social life that whoever studies may not end up in the Carribean but be accepted in the US. amen.
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Report: U.S. losing ground in science education
blike replied to Ms. DNA's topic in Science Education
Many of the worlds great scientists have been taught creation.