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/sci/ Science & Math

Threads added between 2013/10/23 and 2013/10/30

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Most viewed threads in this category

22 more posts in this thread. [Missing image file: Zinc.jpg]
Why does taking zinc before bed cause extremely vivid dreams? I still can't find the answer to this, does anybody know? Go into the details please, I'm very interested.
1 more posts in this thread. [Missing image file: Speedread.jpg]
Hello anons. I've recently found out about speed reading, and honestly I'm not sure of what to think. The concept itself is very fascinating, since being able to read entire books in a flash could be extremely useful in a perspective of time saving, but I wonder how much comprehension you are actually giving away. In my case, the faster I read the less I understand, not to talk about memorizing, so I have to say that I'm quite skeptical about speed reading in general. What do you guys think? Is it worth it? Do you use it frequently? How did you learn it?
5 more posts in this thread. [Missing image file: legal-math.jpg]
from my math lesson 3=x(e^5)-x 3=x((e^5)-1) what just happened? if you subract a factor (x) from said factor times logarithmic term, then it becomes -1? So if is would that imply that 3=x(e^5)-2x >>> 3=x((e^5)-2)? explain this shit
13 more posts in this thread. [Missing image file: Bio_Medical_Hand.jpg]
Yo /sci/ I'm in first semester of Biomedical Engineering and I'm fuckin strugling, but I like my classes so... What should I expect the next semesters? Is there any future in this engineering? btw, I attend to one of the best engineering schools in my zone.

Rodin Coils + Vortex Based Mathematics

0 more posts in this thread. [Missing image file: torus.jpg]
Hey /sci/, posting this again to see if I can get a discussion going. What does /sci/ think about Vortex Based Mathematics, Rodin Coils, or the work of Marko Rodin? I'm not asking if Rodin coils are perpetual energy sources, just if you think it has some sort of legitimate significance. For those who don't know about Rodin coils there are plenty of videos on Youtube. There are some people who have gotten ball bearings to spin up to 500000 RPMs without brushes. Looking to build one myself after I do some research just to check out what all the hoobla is about. Obviously all the shit about it being the fingerprint of god and being able to read messages from heaven in numbers is insanity.
6 more posts in this thread. [Missing image file: >? ?·? ?· ?.png]
You think you have a high IQ? Then prove it. I will start with an easy one but still difficult enough to filter all the scum. Anon moves along the integer number line. He sleeps during the day and only moves at night, always in the same direction and equally far. You neither know where he started nor how fast he is moving every time. You want to catch that faggot but you can only check 1 integer per day. What is your strategy to capture him in a finite number of days?
0 more posts in this thread. [Missing image file: seg05.jpg]
So /sci/ how much of a phony is John Searl?

Axiom of choice

12 more posts in this thread. [Missing image file: 1379885972990.gif]
From wikipedia: (...)The axiom of choice asserts the existence of such elements; it is therefore equivalent to: Given any family of nonempty sets, their Cartesian product is a nonempty set. But isn't it very easy to prove? If each set contains at least one element, then their cartesian product will contain at least the ordered set of these elements...
63 more posts in this thread. [Missing image file: image.jpg]
I am not much into science or anything but this seems like stupid misinformation. It was posted by some pseudo-hippie bullshit page. What does /sci/ think?
11 more posts in this thread. [Missing image file: 1334123186520.jpg]
I need some advice /sci/ I'm currently taking Biology I at USC using Campbell Biology. No matter how much I study I can't seem to regurgitated all the information from the readings and get an A on the tests. What are some methods other Biology majors/ premed used to do well? What are some good resources for Biology?
23 more posts in this thread. [Missing image file: 1383164322961.jpg]
i cannot sigh hard enough.
16 more posts in this thread. [Missing image file: E2670_Sulphurous_Antioxidant_Complex_90.jpg]
Do antioxidants have any real benefit?
40 more posts in this thread. [Missing image file: IMG20131003_184837_-1614238029.jpg]
Is the big crunch still possible?
13 more posts in this thread. [Missing image file: image.jpg]
Is Scientism reprehensible, or a force for good?
68 more posts in this thread. [Missing image file: Untitled.png]
Find D

Thermodynamics

2 more posts in this thread. [Missing image file: IMG_20131030_053548.jpg]
2 more posts in this thread. [Missing image file: conundrum.bronze.jpg]
n=0 n/n=0/n 1/1 = 0/1 1=0 if n = 0 then 0 = 0 0/0 = 0/0 (0/0)*0 = (0/0) *0 n/n = 0/n = 1/1 = 0/1 n/n = 0/n 1 = 0 (n/n) n = (0/n) n 1 = 1 nn/n = 0n/n = no solution exist 1= 0 or 0=0 = indeterminate or no solution exist. Is there any way to do this?
4 more posts in this thread. [Missing image file: 1382578285629.gif]
I have absolutely zero knowledge in the topic of how REM sleep works... but I'm a fan of theorycrafting and imagine the possibilities. That being said- What if we could some how induce an REM state without sleep? As in, being able to be in that REM state whilst walking around doing your daily routine. Perhaps using a device that externally stimulates the brain, or even just using a pill that provides the chemical precursor... Imagine having REM 'sleep' whenever you're feeling tired. Except it wouldn't be just like taking a scoop of jack3d or cup of coffee leaving you exhausted afterwards... it would be genuine restful 'sleep'. Except you're not actually asleep.
9 more posts in this thread. [Missing image file: 300px-Op-Amp_Inverting_Amplifier.svg.png]
does /sci/ know anything about using operational amplifiers? specifically in a guitar pre-amp. i have an IC a found at school that's supposed to be a op-amp, got a potentiometer from GC,a 9V, and my guitar that i have wired to a breadboard to test this out. i have had no luck so far, but i did read somewhere that it won't work if there's more powering the chip than what's going through it. so do i need a smaller battery or what?
2 more posts in this thread. [Missing image file: sum-geometric-series.jpg]
If the sum of an infinite geometric series turns out to be negative, does that mean the series diverges? For example if I have sqrt(2)^n, where the series starts at n=0, then I have 1/(1- sqrt(2)). Is it OK for me to assume that it diverges because my answer is negative? Is there a rule that says this, and if so, what is it called?






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