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/sci/ - Science, Technology, Engineering, and Mathematics

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Anonymous 14/09/18(Thu)21:20 No. 15877 ID: 6cf8dc [Reply]

File 14110680441.png - (519.33KB , 500x692 , tumblr_mzywl5mepF1r7769mo1_500.png )

I got drunk last night and got to thinking... what is stopping lightning from striking houses and tv antennas outside and shit when houses today aren't made with lightning rods?

1 post omitted. Click Reply to view.
Nattajerk 14/10/01(Wed)23:36 No. 15904 ID: ee6591

this ancient device you know as a tv antenna is connected to ground, and provides a clear path for electricity to follow. radio towers are frequently struck for example, the idea is not to avoid lightning but to divert it.

so, in essense, nothing is stopping lightning from striking your house. it is rare, of course. trees, taller buildings, etc will take the most risk of being struck, but having your property struck is certifiably rare by comparison.

Anonymous 15/05/08(Fri)03:13 No. 16099 ID: ef611a

File 143104759244.png - (1.96MB , 1920x1080 , Bowie the-prestige.png )

> ''I got drunk last night and got to thinking...''
..because anon "gets to thinking" after alcohol is applied.

Also, lightning is an electro-magnetic current which leaves the surface of the Earth enroute to discharge in the Ionosphere; where the Extraterrestrial Species (we can lightning) breeds, votes, pays taxes, and smells like music.

Anonymous 15/05/08(Fri)03:47 No. 16102 ID: aef4a9

>lightning is an electro-magnetic current which leaves the surface of the Earth enroute to discharge in the Ionosphere; where the Extraterrestrial Species (we can lightning) breeds, votes, pays taxes, and smells like music.

And in that crazy lies a hint of truth:
Lightning does occur because electrons are being pulled into the sky. Electrons accrue during the collisions between water droplets and ice crystals in the sky and these displaced electrons leave behind a field of negative charge in the atmosphere. Once the charge reaches significant levels lighting occurs. What's actually happening is the electrons are being forcibly removed from particles creating plasma ions in the process. These ions are then drawn upwards to neutralise the charge.

Think of it like sticking a vacuum cleaner hose on the sand, the sand is the charge being drawn up and the hose is the bolt we see descending into it.

trying to understand the weather Anonymous 13/06/27(Thu)13:36 No. 15166 ID: cb9fa8 [Reply]

File 13723330043.jpg - (152.36KB , 800x562 , tw.jpg )

why are some cold and warm front bumps shown to be on one side on the same string and then on the other side on the second half of the string?

3 posts and 3 images omitted. Click Reply to view.
CandleJack 13/07/04(Thu)02:09 No. 15178 ID: 2f260d

File 137289655183.jpg - (19.33KB , 496x548 , Cyclone.jpg )

It looks like it's going anti-clockwise to me.

Anonymous 13/08/22(Thu)02:50 No. 15264 ID: 5f92fc

That's because you're looking at it the wrong way. When you see a cyclone from the top, you are seeing where it is releasing the air that it sucks up. Thus, the direction of reference is traveling outward from the center along the spiral, not inward.

Anonymous 15/05/08(Fri)03:42 No. 16101 ID: ef611a

File 14310493417.gif - (970.24KB , 500x500 , electro magnetic waves.gif )

your question was answered on the KING-5 TV weather blog.
See the definition of electro magnetic waves on the page: "slow moving weather patterns".

Iphone 4 WiFi Anonymous 13/08/15(Thu)13:01 No. 15254 ID: 891cdd [Reply]

File 137656449432.jpg - (78.47KB , 592x444 , 6TNTO2-HETQUY-GKEVLW.jpg )

Now I'm not going to go into much detail but my IPhone was in a microwave for 4 seconds. Everything Works except for GPS and Bluetooth
I dont care much for GPS and Bluetooth, I only really need WiFi.
The problem is I have to be holding my phone right next to my/a router for it to pick up anything.
I have opened up my iphone and checked the EMI sheild. All the screws are tight and there is a solid connection to the logic board.
If I replace the EMI shield would my WiFi be restored? Or am I stuck like this forever?
Any help is greatly appreciated. Thankyou
IPhone 4 (GSM Model:A1332) 6.0.1 Jailbroken

3 posts omitted. Click Reply to view.
Anonymous 13/08/20(Tue)21:06 No. 15262 ID: 2781f1

Fell for the IPhone charges in 1 minute in the microwave, huh? Lmao

deadbabies!rfBia8M6N2 13/08/30(Fri)15:58 No. 15290 ID: 57e7cc


Couldn't you unjailbreak your phone and bring it back to apple and have them repair it? I thought they had a warranty period where they would repair stuff like that for free. If nothing appears to have been damaged by you, I don't see why they wouldn't replace it.

I wouldn't bother replacing the EMI shield if it's whole and undamaged. What more likely happened is what was said
here. Basically, something arced to a component and fried it, and you are lucky to have it work at all. Does the mobile/cellular network still connect?

To me, it sounds like the antenna or the antenna's connection to the phone is fried. You could try replacing it, but there's no guarantee it will work.

Try pressing the area where your antenna is down into the phone with the back cover open, then attempt to connect from further away. If this works, it's most likely a problem with the antenna's connection.

In truth, I have no idea about iPhones, but that's what I would try if I had this problem with my phone.

It's too bad there's not a USB port on the iPhone to allow you to add an additional WiFi device. Too bad Apple hates USB.
Message too long. Click here to view the full text.

Anonymous 15/05/08(Fri)03:31 No. 16100 ID: ef611a

File 143104866550.jpg - (421.90KB , 2592x1944 , year denis.jpg )

I don't think this is true, but...
My neighbor's cousin's school-teacher's dentist's pool-boy's garbage-man's mom said that: "When an iPhone (or iWatch) is put in a Metal-bag of water and nuked in the microwave for 2.3 minutes, it will come out glowing in the dark for 3.2 days and smells like how cookies smell on the skylab that orbits around Mars." But I don't trust denists, so...

Anonymous 15/02/06(Fri)21:17 No. 16041 ID: 6a51a1 [Reply]

File 142325383210.jpg - (59.00KB , 640x453 , Trim_hedge,_neat_lawn_and_a_bench_-_geograph_org_u.jpg )

We mow our lawns to make them look like they're being grazed on.

In caveman times, long wild grass in a territory would have been a sign that it isn't occupied by grazing animals.

We've evolved to find short, neat grass the most attractive as it signals the presence of herds of grazing animals we can hunt.

What do you think?

8 posts and 1 image omitted. Click Reply to view.
Anonymous 15/03/10(Tue)07:03 No. 16073 ID: 4c6193

We mow the lawn because bugs live in tall grass, moron.

Did you have a dad? He should have taught you this shit.

sage 15/05/04(Mon)14:39 No. 16096 ID: cd291a

actually pokemon live in tall grass if you grew up with a gameboy you would know this

Anonymous 15/05/05(Tue)04:49 No. 16098 ID: af3d3e

We didn't evolve in to this, fellow. It's a matter of taste. We were shown by the media that is preferable to have a neat low lawn so that's why we do it.

Have we or will we evolved to structure our thoughts on what the media puts forth is another thing. I think so, men and women who don't listen to the TV won't have kids and thus people will be predetermined to check out sensationalism that rots you brain.

EXTREME SMOOTH Airbus A380 Landing! Anonymous 14/12/18(Thu)01:06 No. 16002 ID: cd6139 [Reply]

File 141886117141.jpg - (1.60MB , 3264x2448 , image.jpg )

EXTREME SMOOTH Airbus A380 Landing! I never see something like this. If you have more videos like this please post them.


Anonymous 15/04/08(Wed)05:19 No. 16083 ID: 380e67

The discussion under it is interesting...

Anonymous 15/05/03(Sun)21:45 No. 16095 ID: 34c1c6


it wasn't that smooth. ive done better i MSFS 2009

air core filter symbol nonoubizoniss 15/05/02(Sat)14:40 No. 16094 ID: b4ba8f [Reply]

File 143057040162.gif - (13.08KB , 565x513 , cienci97.gif )

I'm redrawing a poorly drawn schematic. most of the components are drawn the way they look and not as the symbol. also I'm not sure of the names. is an air core and a iron core filter a air/iron core inductor? if not what dose the symbol look like? BTW a Google image search was more confusing than helpful.

Anonymous 15/05/14(Thu)09:44 No. 16109 ID: bc1020

"filter" might be a coil with/out the ferrite core

Virtual reality talk Anonymous 15/05/02(Sat)09:04 No. 16093 ID: 4532ed [Reply]

Youtube  Hey /Sci recently I have been thinking significantly about how close we are to making a genuine virtual reality rig/game. With technology like the occlus rift and hi def headphones it should be relatively easy placing someone in a virtual world. The only issue I see at the moment is the actual interaction such as touch and movement. As I see it there is a relatively simple approach which is to model a physical environment to be similar to a virtual environment. I.e track a persons movements within a boundary in a game like virtual tennis there is no tricky terrain or elevation and a user's position is monitored inside the bounds of a physical space the same size. Surely something like this is possible and affordable. Why haven't we seen this yet?.

Something that's been bugging me. Anonymous 14/12/16(Tue)19:41 No. 15999 ID: 465a65 [Reply]

File 14187553071.gif - (1.81MB , 350x331 , strawberries.gif )

If you flip an asymmetrical two-dimensional Flatlander through the third dimension, his right side will become his left side and vice-versa.

Let's say you did something similar to a person, flipping him through a fourth spatial dimension. The problem with this is that the flip isn't just his body parts. The molecules in his body would be flipped too, and many chemicals have asymmetrical molecules which take on different properties when mirrored.

So taking this into consideration, would this flipped person even be able to continue living? Would his death be immediate or more lingering? What effects could we expect to see? Take me down this rabbit hole, /sci/.

6 posts and 1 image omitted. Click Reply to view.
Anonymous 15/01/30(Fri)23:39 No. 16038 ID: 0c9b56

It's so weird that nobody noticed that this not a new hypothesis.


Anonymous 15/03/08(Sun)06:40 No. 16068 ID: 9ecb4f

Ignoring the implausibility of 2D life forms and their biochemistry and assuming the survivability of being flipped, by which I also assume you mean he's lifted off his plane into the third dimension and placed back, then he will probably die a lingering death. If any of whatever hypothetical mechanisms permit 2D biosynthesis were to be reversed on even 1 axis it would render him unable to receive nutrition and calories from his former food supply. It would be like human astronauts landing on a planet with a biosphere based on right handed chirality. I believe we're left handed on Earth. They would waste away eating the local foods which, with exception perhaps to some non-chiral oils and amino acids, would provide no nutrition and taste odd if they were not in fact completely poisonous.

np Madpianist 15/04/29(Wed)18:14 No. 16091 ID: 9fa2a8

Well it would survive, given the fact that an organism in the 2nd dimension also belongs in the third and so on, so a 3D org. also belongs in the 4th with properties that are unknown yet, but all 3D forms, have a determinate form in the 4D, they are not split, all dimensions exist at the same time.

Anonymous 13/11/02(Sat)01:29 No. 15407 ID: 5dd374 [Reply]

File 138335215071.jpg - (11.30KB , 380x380 , human body muscles.jpg )

Why is the human body organized the way it is? Why have decisions so centralized? Do you think there is a model for the system of organization that the body uses, relative to political systems in use in the modern world?

8 posts and 1 image omitted. Click Reply to view.
Anonymous 13/12/16(Mon)20:05 No. 15487 ID: 1c2d8f

>relative to political systems in use in the modern world

There's the thing, OP. Modern political systems are inefficient. The last thing I'd want is my body to mock modern politics.

Anonymous 15/03/29(Sun)05:36 No. 16077 ID: ae1ae2

wow, look at me go all those years ago
I sound like a children's education programme presenter...

Anonymous 15/04/16(Thu)11:09 No. 16086 ID: 4182eb

well I could sustain myself by eating money and the souls of children and blacks if my body operated this way.

might be fun

education help Anonymous 15/03/06(Fri)02:12 No. 16065 ID: b80d08 [Reply]

File 142560434327.gif - (1.51MB , 400x223 , idk-what-im-doing.gif )

Hey /sci/ I'm currently looking into an new career choice, I always wanted to do something with math or science, and I'm addicted to computers
My request is if any of you guys are computer engineering or computer engineering tech I would love to get some input on how the career is. For example, if you can be a family man or if you travel too much stuff
like that

2 posts omitted. Click Reply to view.
Anonymous 15/03/09(Mon)19:23 No. 16072 ID: e3615c

To clarify, are you looking at *computer* engineering, or *software* engineering?

Computer engineers design computer hardware; the occupation is sort of like a specialization of electronics engineering. To my knowledge, they aren't in extremely high demand. Depending on where you live, you might not even be able to find a job.

Software engineers design and build software systems.
Computer science is yet another possibility. Computer scientists often occupy at companies the same positions as software engineers, since the training they receive have a lot of overlap. Computer scientists, unlike software engineers, are also trained to do research, and also spend more time learning about the more theoretical aspects of computer science.

Anonymous 15/03/29(Sun)07:45 No. 16078 ID: da1583

Best if you have a gf/wife.. it just makes everything make more sense.. also, if you're an adult, that's the normal thing to do

Anonymous 15/04/02(Thu)08:24 No. 16082 ID: 79e9a1

You don't want to be a family man. Especially if you have children. Having kids is a terrible financial decision.

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