psi20

I bought a used reflecting telescope the other day and it turns out parts are missing. I'm missing the tube to the side to see the image, but I have a smaller refracting telescope and 2 small mirrors, too. Do you know of a way to use the reflecting telescope? Or maybe you could tell me how to determine the angles light reflects off a surface or something. That would help I think. Thanks.

Try this. Close your eyes. When the sun is out, like in the afternoon, imagine yourself opening the door and looking outside your house. Then when the sun is not out, like at night, imagine yourself opening the door and looking outside. During yesterday afternoon, I visualized it, and I could see everything in pretty good detail because the sun was out. At night, when I tried to visualize it, everything was dark. I imagined myself opening the door, and it was night. I could hardly see the doorknob or the stairs or the flowers. There was some light reflecting off the car though, but that was pretty much all I could make out. Do you think it has something to do with short-term memory and time perception? Or do you think it has to do with light perception? I just went into a closet right now where it was pitch black and tried to imagine that scenario. It was definitely harder than doing it with light, like right now. I can imagine it easily right now, but when I went into the closet, it took a couple of seconds. Last night when I tried to imagine opening the door as if it were day, it took like fifteen seconds or so. It was kind of unexpected that everything I imagined in the scenario changed.

I agree, we should just dump the grade idea altogether. Some of my friends are worried their grades drop down and others are worried that they won't do well on the SAT's and stuff. I'm worried that I won't be able to compete in the world of math and physics if English classes are going to get in the way. Some people have already mentioned this in the thread. But I still can't believe you must take certain classes in order to be able to go on to the next grade. It's just a constraint.

Thanks. I think I started to do these visualizations in the evening a couple of nights ago in the late afternoon or evening. Sorry, but there's no fishing or people allowed in this world. I don't even visualize myself in there.

I was trying to visualize these very detailed scenes in my mind. For example, there's an ocean with a pink, red, and yellow sky. Beneath the clear ocean is some coral and colorful fish. Some dolphins jump out of the sea. When I woke up this morning to visualize it again, I found it was a lot easier. Then as time went on, it got harder. So I'm guessing that it's easier to imagine something when you're just waking up than when you're already awake. Why is that?

Yeah, that's what I commented on when I said I didn't control time. I meant that you don't control time, it's just your own time perception is skewed.

I thought Einstein said time isn't the fourth dimension. He considered space and time the same thing. The fourth dimension is just another dimension which is expanding, causing space-time to expand, too. I've heard of the alpha state and stuff. But the alpha state happens when you're listening to music or watching tv. Theta state is where you are in a deep trance and you can't feel pain as much as you would. Delta waves occur when you are sleeping. Do you think that maybe if one's brain frequency is at delta mode, or perhaps lower, one loses normal time perception? *Psychokinesis, if it exists, might be tied into this. You know, I don't think it is that I had control of time. It was like I lost my perception of time. If one minute felt like five and I was trying to wake up, then morning would've came earlier. But it took forever. I read that computers and age might also affect time perception. Maybe that's why some people, when they grow old, fall asleep more often. There was also that experiment done, where someone went lived underground for a while. She had no sunlight, and her perception of day and night changed. Even her menstrual cycle was off. In other words, she lost track of time.

Yeah, I noticed the times didn't fluctuate much either. I sleep between 10-11 and wake up at 1. It doesn't happen anymore. Later, as I kept alert, I found out that sprinklers went off at around 2 sometimes. When I was a kid, I was very paranoid and scared, especially at night. When I heard a creak, I thought it would be a burglar or a murderer. So maybe hearing the sprinkler subconsciously at night set off an alarm in my head to wake up at an earlier time, like 1.

This happened to me a long time ago, when I was sick. I woke up at around 3:00 A.M. I tried to fall asleep but I couldn't. It felt like 10 minutes passed, but when I turned around and looked at the digital alarm clock, only a minute passed. I turned around to try and sleep again. It felt like 10 minutes again, but only a couple of minutes passed. I did this for a couple more times, and I concluded that the alarm clock must be broken. A half hour later, I decided to stare at the clock to see if my counting coincided with the clock. I counted seconds in my head when the next minute appeared. I counted about 100 seconds to one minute on the clock. Then I counted out loud. I counted like forty something out loud. I couldn't fall asleep. Anyways, when it was like 6 AM I decided to get out of bed. I thought that everyone would be awake because the clock was messed up. It turns out the clock wasn't messed up and all the clocks in the house and computers, etc. said approximately the same time. Imagine how long those three hours really were. It felt like a whole day passed, and I was just sitting there counting or just lying down trying to sleep. This happened to you before? What's going on?

I was reading this book called, A History of Classical Physics, which is a good book. It talked about the Greeks studying conic sections, which used to be studied as shadows. You use a circular ring and use a flashlight. I can see how lines, circles, ellipses, and parabolas could be made, but I can't make an hyperbola. Can someone explain how to make an hyperbola using a flashlight and a circular ring?

hydrogen sulfide in your body combusting with something else?

I don't get why recombining DNA from human and chimp would make a being of equal to or less than intelligience of that of a human. DNA doesn't code for traits or intelligience, just those amino acids which form proteins. So what if this hybrid has proteins we don't have, proteins that make it understand abstract concepts faster than us. And it might have the highest EQ if it has a huge head and small body.

Put your hand on a wall where there's a corner. Then move your hand to the opposite wall. (I'm assuming that the corner is a right corner.) The hand of your shadow can move faster than the actual hand. (I'm assuming this because it took your hand's shadow the same time to travel a greater distance than your hand in that same amount of time.) If you did this in a plane perpendicular to the source of light, then we can draw a right triangle ABC. c is the the distance your hand traveled. a + b is the distance the shadow of the hand traveled. a+b>c. suppose that someone constructed this on a grander scale. c is a light-second. my hand travels at the speed of light (or very close to it). Will the shadow surpass the speed of light?

Oh, hehe, I haven't ever seen that notation before.

This proof works with infinite geometric sequences. .999... = 9/10 + 9/100 + 9/1000 ... so you have a geometric sequence. You put it into the formula. a1/(1-r) where a1 is the first term of the sequence and r is the ratio. (9/10)/(1-1/10). .9/.9= 1

I'm doing a bug collection. When I put my finger to an antenna of a small bug, it moved away. The bug was about 2-3 times as short as the antennae. At first, the antennae moved away a lot and was very sensitive. Now it's not as much.

"as for telepathy, there isn`t enough evidence or Known material data on it, so it maybe possible that time or distance or power of such telepathic signals is not an issue? a small signal could be enough :)" yesterday something weird happened. i was doing some bio homework. then at around 7:30, i felt there was an urgent email for me, that i should check it out immediately! but i decided i was just wanting to stop doing bio homework so i didn't check it. Then 10 minutes later, i felt i had an email again. then at 8, i felt i had another email. I wanted to eat ice cream and take a shower, so i said to myself after i eat ice cream and take a shower i'll take a look at my email. strangely when i opened up my account, there were 4 new messages. the first one was at 7:35:01 and was titled "rush rush!!!" from my friend the second one was at 7:36:29 and was titled "nevermind ignore that last one" the third one was at 8:10:56 and was titled "nevermind the last one" the fourth one was at 8:22:35, when i was in the shower, and was titled "the last ones too" weird huh?

are insect antennae magnetic?

http://www.thehungersite.com http://www.thebreastcancersite.com http://www.thechildhealthsite.com http://www.therainforestsite.com http://www.theanimalrescuesite.com set 'em as bookmarks or the homepage. click on "Give Free Food", etc. from the sites. pretty cool stuff

Wow, that's pretty weird. I was just thinking about women in science yesterday. I was wondering why I can name so many male scientists, einstein, bohr, darwin, but not many female, curie, that's all i can come up off the top of my head. I once heard on the radio about a program for education in the sciences and math for girls 6th grade and up. The program said that, "Many girls lose interest in math and science..." So I think to myself, maybe girls generally don't like science because they think it's nerdy. Then I think, but what if male scientists are suppressing the female ones? Was my thought right?

My clothes are shrinking. Is it because I am washing it in the wrong water temperature? Or maybe is it because I am drying it at the wrong temperature? Or maybe both? I would hate to have to conduct experiments on clothing shrinkage with my own clothes, so I'd really appreciate it if someone has an answer.

Thanks, that makes sense now.

go to http://hyperphysics.phy-astr.gsu.edu/hbase/alg2.html#ap scroll down to the part on algebra practice equations. x = (b(e-c))/(a-bd) so a can't = bd or the equation becomes undefined. put x + 0 = x + 0 and you get NaN. what's NaN? Does that mean all real numbers? put x + 1 = x + 0 and you get -Infinity... I don't get it. I thought it was null set. put x + 0 = x + 1 and you get Infinity... I don't get that either. I thought it was null set.

So does the water that is necessary for hydrolysis comes from the tree that the bananas came from? Then the bananas store it for a while or something? Or does the water come from the water vapor in the air?

So these bananas have been brought home and are green. How do they turn yellow? Don't they need sugar or something to turn yellow? But where does the sugar come from if the bananas are already picked off the tree?