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/sci/ - Science & Math

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>> No.4118548 [View]

No

>> No.4113387 [View]

>>4113358
¡¿?!
For fuck's sake remember the inverted exclamation and question marks before the exclamatory or interrogatory part of the sentence (usually after the last comma, but if you don't know which one it is, just be safe and put it at the very beginning of the sentence).

>> No.4113358 [View]

>>4113310
I don't know what other general shit to tell you.
A bit more involved stuff now, I guess.

Articles, nouns and verbs must all agree on singular/plural, person (1st, 2nd or 3rd) and tense (past present or future)
Articles and nouns must agree on gender.
Possessive articles may go either before or after the object, but if they go after then they must agree with the abject noun on gender.

>> No.4113297 [View]

>>4113262
Words are spelled, with VERY few exceptions, EXACTLY as they are spoken.
Learn the rules for graphical accents.
In the case of monosyllabic words, if it's a pronoun or a verb it has an accent, if an article or a preposition it does not.
One exception: más/mas
más = more; plus
mas = but (rarely used, "pero" being preferred)

>> No.4113262 [View]

If it ends in o it's usually male, if it ends in a it's usually female.
For the most part, it goes <noun> <adjective> OR <noun> de <noun as adjective>.
Verbs do not require an explicit subject if at the beginning of sentences.

>> No.4027238 [View]

The distance to distant objects is measured in a variety of ways. In order of increasing distance and decreasing precision:
1) LADAR - Shoot a laser at an object, measure how much time it takes to travel back. Only works with rather nearby objects such as the Moon.
2) Parallax - Measure the object's apparent position at two stages of Earth's orbit. Then with simple trigonometry determine distance.
3) Computations based on the Apparent Magnitude, Absolute Magnitude, and redshift obviously only works for stars and galaxies, and is usually used for really, really far away objects.

>> No.3986286 [View]

I actually facepalmed.
Good job OP

>> No.3955260 [View]

We're already well on the path to doing so.
Look up "Sarcos XOS" and "Trojan body armor".
Stuttering steps, yes, but they're in the right direction.

>> No.3952105 [View]

Try .prt?

>> No.3952073 [View]

You're using Autodesk, when you can use Solidworks? WTF is wrong with you, man?
Anyways, yeah, you're going to get problems like that regardless of what you do. It seems to me that the only ones that get transferred flawlessly are .PRT files between SW and NX, and .DWG files between all of them.
What file type are you using?

>> No.3946701 [View]
File: 52 KB, 443x197, 1319455829187.png [View same] [iqdb] [saucenao] [google]
3946701

>>3946674
Yeah, I fucked that one up.

>> No.3946663 [DELETED]  [View]
File: 52 KB, 443x197, 1319455829187.png [View same] [iqdb] [saucenao] [google]
3946663

>>3946643
It seems like cheating, though.

>> No.3946630 [View]

2: Thrust once, then slash until complete.

>> No.3946555 [View]
File: 16 KB, 544x200, Untitled.png [View same] [iqdb] [saucenao] [google]
3946555

3 is kind of obvious. If he starts at the station immediately after the longest gap in between stations, then he will make it all the way.

Also, wtf, ReCaptcha?

>> No.3914708 [View]

>>3914673
woops
71.8%
>>3914689
>>3914691

>> No.3914676 [View]

>>3914664
>>3914669
I think he means what are his chances of getting ONE 5/5.

>> No.3914673 [View]

71.2%

>> No.3914050 [View]

>>3913961
Same reason as the first. Muscle is expensive to maintain, fat aids in maintenance.
To keep using the first analogy of the engines, imagine you need to go for a long-distance trip. A small engine (muscle) with a large gas tank (fat) is better than the opposite.

The body utilizes different energy sources at different times in a starvation situation. I'm not going to look up the exact times now, but the mechanisms that are dominant occur in this order:
1) Blood glucose
2) Liver glucose
3) Ketogenesis (energy from fat)
4) Muscle catabolism
5) Ketogenesis
6) Body-wide organ catabolism of less important organs (reproductive, digestive, endocrine, etc)
7) Catabolism of important organs (circulatory, respiratory, nervous)

It's not a hard switch, as they're all more or less always happening, only that catabolism is outweighed by anabolism. At first your body is reluctant to use muscle instead of fat, because when we were evolving, we needed those muscles to get food.

>> No.3913983 [View]
File: 38 KB, 600x337, Shut_up_and_take_my_money.jpg [View same] [iqdb] [saucenao] [google]
3913983

>>3913971
This sounds pretty good.

>> No.3913951 [View]

>>3913879
Basically. When the perceived tradeoff is torn tendon > dead everything.
Of course, highly trained athletes can push the limits, to where the safety factor of (muscle force)/(tendon ultimate force) is allowed to be less and less, getting closer to 1. When it becomes less than one is when you hear of things like avulsion fractures (which is actually cause by muscle force being greater than BONE ultimate stress) or torn tendons.

http://en.wikipedia.org/wiki/Avulsion_fracture
>Highly trained athletes can overcome this neurological inhibition of strength and produce a much greater force output capable of breaking or avulsing a bone.

>> No.3913863 [View]

Your body adapts. Big, strong muscles are expensive to maintain, in metabolic terms. If you use them, then your body has reason to keep them. If you don't, then your body stops investing energy in maintaining them, and instead breaks them down, to use the energy in something else.
A good analogy would be changing a big SUV with a V-8 for a small 4 cylinder car, if you're never using it to haul anything around.

Also, serial systems are only as strong as their weakest component. Tendons actually NEED stress applied to them to provide proper circulation of fluids and nutrients, as they have very few blood vessels in them. Therefore, if not stressed regularly, they atrophy to a diameter where blood pressure is enough to properly provide the cells with nutrients.
Muscles will not, under normal conditions, exert more force than its tendons will support.

>> No.3893015 [View]

Read the science section at Cracked.

>> No.3884304 [View]

You question is worded vaguely. Are you asking from a practical or a biomechanical standpoint? Do you mean position of flexion of the elbows, as in at what point during the movement are you capable of most leverage, or do you mean abduction of the humerus, as in at what angle to hold them out from your body during the movement?

>> No.3882382 [View]
File: 66 KB, 344x392, 6845165374.jpg [View same] [iqdb] [saucenao] [google]
3882382

Holoprosencephaly

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