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File 126096820295.jpg - (85.75KB , 803x499 , 123973813970.jpg )
6665 No. 6665 ID: ea5675 Stickied hide watch expand quickreply [Reply] [Last 50 posts]
Want to know what your major should be, what you should do with your life, what cool jobs there are for you, or how to do a homework problem? This is the General Help sticky. Post those sorts of questions here, NOT IN A NEW POST.

Also, our IRC Trivia-SCI bot needs more Trivia. Especially looking for Mathematics and all fields of Science. No useless trivia, please. If you have any, post it here. Your post will be deleted once questions have been added to the bot. Stop in for a round! Link is at the top of this page, or just type the following line in your IRC client "/join #/sci/". Then type "!trivia". Please format your questions like this:

question without ending punctuation*answer
or
question without ending punctuation*answer*alt answer*alt answer
52 posts and 11 images omitted. Click Reply to view.
>> No. 8170 ID: 017f12
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8170
Should I study biological engineering or mechanical engineering?

No generic answers please (ie: choose what you like hurr durr..I like them both)


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6203 No. 6203 ID: 15987b Stickied hide watch expand quickreply [Reply]
Up until a couple months ago, I had always thought that I sucked at physics, and had grades to corroborate. Then I found this book to the left: the Resnick/Halliday/Walker. All of a sudden things made sense in class and my grades shot up. Right now I'm lightyears of ahead of my class in physics. So my question textbooks does /sci/ reccomend for physics, chemistry and math?

This is now the textbook and and book request thread
45 posts and 5 images omitted. Click Reply to view.
>> No. 8161 ID: b87d5b
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8161
I picked this up in the $5 bin at B&N years ago, Asimov's nonfiction is a great read for the layman.


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8165 No. 8165 ID: 8fdffd hide watch expand quickreply [Reply]
Happy zeitgeist day slavefags

pic related, board chosen correctly. Project venus is about leading humanity through science, not violence and politics. Often i feel like im one of a rare few who understand the stupidity of governments etc.

Channers thoughts?
2 posts and 1 image omitted. Click Reply to view.
>> No. 8168 ID: 1f52db
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8168
>> No. 8172 ID: 4dc11d
>>8165

Sounds like you're a fucking commie. Sounds like I'm not gonna do work for the vast majority of people because they're stupid.
>> No. 8173 ID: 001fdf
>>8167
Everyone knows how badly banks screw the public. Everyone knows royalty gets all of the advantages of the public's wealth. Unfortunately it is nowhere near bad enough to require an overthrow of the government. When you actually move out of your parent's house and start supporting yourself, you will appreciate the blessings of a first world country.
The reason capitalism works is because you get to keep a lot of what you earn, and the rest goes to the country(I disagree with how america spends its tax money, but that isn't relevant).

Communism doesn't work because nobody tries hard when they don't see the benefits of their effort.

TL;DR get a job, hippie.


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8047 No. 8047 ID: 32241a hide watch expand quickreply [Reply]
Let's say, as a purely hypothetical mental exercise, you wanted to break into a bank vault or a high security safe. Without damaging the goodies inside, how would you get it open?

You're welcome to describe any method you can come up with, but try to keep it within the confines of the tools and skills you have, or could procure, at your disposal. So unless any of you own a tank, don't say you would just roll up in one and blow the hinges off with the cannon. You would probably destroy everything inside anyway...
16 posts and 1 image omitted. Click Reply to view.
>> No. 8159 ID: 1e40d3
Stop stealing, get a job!
>> No. 8162 ID: 173492
>>8151
This is already done. People can do it with the regular card readers at their work. You can even install keyloggers in the computerized ones.
>> No. 8171 ID: 882e81
>>8162
another reason I gave up the project...


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8160 No. 8160 ID: 017f12 hide watch quickreply [Reply]
Why does the Rabies virus avoid most of the immune response?

How does it get through all those layers of immunity to result in 100% fatality!

It is THE god mode virus and it is absolutely incredible!

What do you think? Why?
>> No. 8169 ID: 8b7060
a lot of how the immune system works is chemical binding. maybe it doesn't have receptors to lymphocytes?


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7813 No. 7813 ID: 8b7060 hide watch expand quickreply [Reply]
how likely do you think extraterrestrial life is? me, i don't believe in the rare-earth theory. I think space is so infinite that there are infinite chances for life to arise. the real problem is time.

bonus: post SCIENTIFIC ideas of what alien life might look like. NO conspiracy theory survivalist ideas of UFOS and black helicopters.
38 posts and 4 images omitted. Click Reply to view.
>> No. 8142 ID: 016573
Maybe the biggest hurdle is the jump from single cell to multicell as someone stated. And by intelligence do you mean the ability to use radio to communicate? Our billion's of years of lifes history is cut to 100 years.
Other world's would probably have the same issues. It's not inevitable that an animal would evolve to use brain power over really big teeth.
Besides, the distances involved in finding someone to talk to are mind blowing. It could take a 1000 years for your message to get to someone and a 1000 years for a reply. In other words we'll probably never know if ET is out there.
>> No. 8146 ID: 2a831d
As humanity continues to live, the probability of intelligent life existing elsewhere in the universe approaches 1.
>> No. 8164 ID: 173492
If there is any intelligent life it definitely isn't anywhere in our own galaxy. The odds of 2 intelligent species developing with 100 million years of each other is ridiculously small, and in 100 million years, if our descendants we will have colonized the entire galaxy. Even IF we developed civilizations within that time period, we would detect massive anomalous EM radiation emanating from a certain region of space (I don't give a shit about what people say about alternative communications, an intelligent species will generate EM radiation). Thus, you can safely assume there is no intelligent life in the galaxy, and therefore it's a pretty moot point discussing it since we'll never know anyway.


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5642 No. 5642 ID: 19897b hide watch expand quickreply [Reply]
http://www.desktopaero.com/adw/welcome.html

My attempt:

Wings: 40 degree sweep; 3000 square foot area; aspect ratio 8
Tail: conventional; 20% area; aspect ratio 4
Engines: turbojet; 2 aft engines
Fuselage: 3/3
Max speed: 535 knots (mach 0.93)
Cruising altitude: 36000 feet
Fuel capacity: 64,000 pounds
47 posts and 23 images omitted. Click Reply to view.
>> No. 7756 ID: 613245
>>7752

It needs moar cowbell.
>> No. 7757 ID: 613245
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7757
My goals:

[x] Reach at least mach 0.8.
[x] Fly at an altitude of at least 30,000 feet.
[ ] Get the ticket prices down to $700 or below.

I DARE you to try and do it. There is no possible way you can make it to Melborne and have it cost less than $703.3.

Note the mission range and maximum range. Hopefully they won't have to circle the airport. lol.

Oddly enough, adding more passengers to a flight doesn't bring the cost per fare down.
>> No. 8158 ID: 613245
>>6534

FFFFUUUU


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8152 No. 8152 ID: 8b7060 hide watch quickreply [Reply]
what are some ways to differentiate algae from nonvascular land plants like moss? i'm guessing the biggest way is that algae only live in bodies of water?
>> No. 8153 ID: 53d4a8
I believe the NVPs will have leaf and root precursors, and the algae wont. Also, the NVPs gametophyte phase will be dominant, so you may be able to look for sporophytes if you know what kind of NVP you are comparing to the algae.

Forget about living in bodies of water, NVPs do that too.
>> No. 8156 ID: 8b7060
>>8153
shit! I forgot all about looking for roots or leaves.
>> No. 8157 ID: 8b7060
wait, another plant question. do all land plants (aka higher plants) have roots, stems and leaves?


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7995 No. 7995 ID: 46f7ac hide watch expand quickreply [Reply]
Since there is no longer a Psychology board, I approach you, /sci/.

I am writing a paper on Kohlberg's stages of morality. Here I present you with a couple of scenarios. The answer you provide is not what I am interested in, it is the thought process involved in reaching your answer that I am after.

So please, if you have a second to look over these questions and shoot me a quick answer, I would be ecstatic!

1.) Two friends, Tim and Kyle, are walking down the street discussing Tim’s financial troubles. Tim has been laid off from work and doesn’t have enough money to provide food for his family. Kyle, on the other hand, has a job and some money saved up, though the ominous shadow of unemployment is always in the back of his mind. Tim asks Kyle for some money to pay for food and some bills. Kyle desperately wishes to help his friend, but knows in doing so he could possibly be putting his family in the same danger down the line. What should Kyle do? Why?

2.) Assume Kyle has refused to lend Tim the money. As they head off on their separate ways back home, Tim, with the knowledge that he scarcely has enough money to buy his family dinner tonight fresh on his mind, comes across a blind man collecting charity. The collection is for families that have been recently laid off and are in need of financial assistance. Tim, realizing that this money is for people in his exact situation, considers skipping over official channels and taking some of the money directly from the blind man, who will never know who is was that stole from him. What should Tim do? Why?

Thank you for your input, your help is greatly appreciated!
8 posts omitted. Click Reply to view.
>> No. 8147 ID: c8a05f
Now as far as ethics is involved, the answer to these questions goes far, far deeper than the situation between these men. Already in the design of the economical/monetary system we find ethical errors such as increasing the separation of wealthy and poor, encouraging monopoly and a strong foundation for crime. One can not guarantee a correct answer without considering the ethical issues of everything from the core: our social system to the situation expained.
>> No. 8148 ID: 4a8828
>>8005

What is wrong with psychology?
>> No. 8150 ID: a938ae
>>8148
Ignore them, there is a bias against psychology as it is often believed to be the regurgitation of commonly held truisms. Psychology applies the scientific method to social and cognitive constructs. These construct are extremely complex, I would say the most complex constructs in human reality. However, it is difficult to control the wide range variability amongst people, the conditions, and even how material is presented, even when you use random assignment. Though it does not matter much, as our scales and measures are not very sensitive or refined; psychology is an infant science.

One also must account for the term psychology itself, more often than not, individuals who hold such a bias are thinking of clinical psychology alone. Clinical psychology has well been recognized for ignoring science and using unsupported methods to treat people. People also confuse psychiatry and clinical psychology. Ultimately, bodies of knowledge often suffer from elitist bias or are merely ignored. Who here really knows how large of an impact the ideas of psychologists like Skinner, Watson, Pavlov, Milgrim, Neisser, Hull and Tolman?


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8136 No. 8136 ID: 8b7060 hide watch quickreply [Reply]
are antioxidants (in a food and drink sense) legit or homeopathy?
>> No. 8139 ID: ea5675
>> are antioxidants (in a food and drink sense) legit

Antioxidants are vitamins. Receiving them in food is fine. Taking high dose supplements is not really legit.

You may be interested in this:
http://www.livescience.com/health/life-extending-cocktail-100216.html
>> No. 8149 ID: 74de1d
>>8139
Not all antioxidants are vitamins.

They are legit, though, but - of course - some people make more of them then they actually are.


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