/sci/ - Science & Math

>>6845355
>Why aren't there "magnet-based" generators?
there are OP, small, simple generators for bicycle lighting, hand crank emergency recharger for your fone etc...
Men have been puzzling for centuries over how to get energy out of "magnet power". I personally have found it helpful to think of the mechanical aspects of magnetic field interactions as being similar to perfect springs. You get nothing out that you didn't put in at some point.

Magnets have long fascinated me. There are the two aspects of magnetic field interactions the mechanical and the electrical. And to further complicate things the electrical / magnetic thing whereby one can create the other.

A bit of trivia
>when you rotate a magnet you don't always rotate the field.

when a bar magnet is rotated along it's N-S axis the field does not rotate with it.

if you take two bar magnets and place one of them on top of a table you can often use the other from under the table to cause motion of the magnet on the table surface. this shows rotational coupling only in the axis perpendicular to the N-S axis.

>>6844910
>So come anything raised to the 0 is equal to 1 and not 0?

5^1 = 5
5^0.1 =1.1746
5^0.001 = 1.0016
5^0.00001 = 1.000016
5^0.0000001 = 1.00000016

as the exponent gets closer to zero the result gets closer to 1

>>6845770
>I really love the way you dismiss "interfering with salmon migration"

I'm glad I could please you anon.

I dismiss it lightly because research has shown the effects of various configurations of magnetic, electric and combined fields have on wildlife including Salmon. I believe that the web of bio-diversity that makes up our home planet is both fragile and resilient. To date, the only field that has significant effect on Salmon or any migrating species is the magnetic field. Or do you have information that electric fields have similar effects?

If you read the OP and learned something about the tech involved ITT you might understand that the energy involved is manifest as a TM mode wave. It shows no magnetic field.

>>6845756
>produce power just to give it away,
you are the idiot that thinks all the energy will be just given away because you can't bill for every single erg

>>6845741
ayyy lmao

1/10 you got me to reply

It sounds like you have already assumed the tech will work as advertised

>>6845686
>You might fuck with the ecosystem in unknown ways.
well, that's always a possibility with anything you do isn't it?

>>6845686
>Interference with radio and other waves is also an issue, as well as sensitive aviation and defence equipment.

which just goes to show either your reading comprehension is not what it should be or you do not understand the physics of EM waves

>>6845635
perhaps you have misunderstood my meaning.

I meant to say you were not making any objections to the technical feasibility of the idea.

if you have any thoughts about the physics behind this method of power transmission please make them known

>>6845624
>unsecured wifi.
such a horrible, horrible thought anon

I notice that
>>6845576
>>6845586
>>6845616
>>6845624

do not speak of feasibility of the idea... only muh shekels

>>6845603
>At least he'll probably fry his own head first by being an uneducated moron.

I'm always willing to help natural selection in action

>>6845586
consider the following
in a wireless system tracking down a user is not difficult. that is the difficulty is in finding the small user. large industrial users of power will not be mobile and will be easy to bill.
I can set up a system to parasitically rob power from high voltage power transmission lines. I don't have to touch them or be on the exact same property. but when the power company sees my equipment or notices the power losses the will investigate and sue me.

the inability to directly meter the power usage is not an insurmountable obstacle.

>>6845378
>Could you wire one of these magnetrons or several infront of your front door to deliver a shit tonne of radiation to people asking for candy ?

they might feel odd, and wonder why their candy was melting anon.

seriously, it's possible but very, very dangerous anon.

I recently watched
http://www.liveleak.com/view?i=bba_1406662687&comments=1

which shows some interesting stupidity as well as a few useful ideas

the cardboard with Ne2 bulbs fastened to it acting as a visual indicator of field strength is breddy gud

using the old can as a waveguide is a little off... at 2.4Ghz you really need a bigger can if you want to do it right.

by using the correct size can with the magnetron located in proper place the radiation pattern will be better

a dish type reflector will help get the energy all going in one direction and again if you do it right you can get your energy into a beam with only a few degrees of divergence

>>6845576
you have a point, economics does play a role in the deployment of new technology and sometimes in the money allocated to R&D

>>6845546
no, is educational thread in /sci/ discussing physics. monkey type shit slinging on cult of personality topic not welcome.
quite frankly I don't give a single fug about who discovered what or invented which, all I do care about is information that is accurate

the electric grid as we know it has ~6% loss
wireless energy can travel halfway around the world with less than 2% loss...
the only think standing in the way of this method is ignorance

>>6845357
>tissue damage due to immune system activity does not happen

what is rheumatoid arthritis?

Efficient wireless electrical power system with global reach. No more wires or batteries for electrical devices. More efficient than current grid system. What do you think /sci/ ? There is no free energy involved here, just simple natural laws of physics which most will understand.
>inb4 common objections
the most relevant objection is that most people think that energy always attenuates exponentially... with the square of the distance... with the cube of the distance etc. There are circumstances of propagation that allow for attenuation in direct linear relation with distance! The most common use of these circumstances are called transmission lines or waveguides. EM energy moving in a transmission line or waveguide falls under a special case (see Oliver Heaviside's work to learn more) and the energy attenuates in direct relation to distance traveled. EM waves traveling in a waveguide have some other interesting properties while bounded by the waveguide. Under some circumstances an EM wave will travel as an electric field wave with no magnetic component (TM mode) or the wave can travel as a magnetic field with no electric field component (TE mode).

The last piece of the puzzle is that all us anons live in a waveguide. A concentric spherical waveguide with the surface of the earth as the lower bound and the ionosphere as the upper. This waveguide is resonant and standing waves have been detected in it.

>>6469219
>How can humans share 50% of our DNA with bananas and yet have very different phenotypes (characteristics)?

did you ever consider how much DNA must be used just simply creating cell walls, nucleus etc... let alone accomplishing cooperation between cells, along with encoding the different types of cells needed for that individual species? Humans must share some common DNA with almost any multi-cellular creature.

>>6461299
>Could someone explain to a newbie how does hacking work?
hacking is understanding a thing or system so well that you can make it do what you want. picking a lock is hacking
hot wiring a car is hacking

to "hack" one must master the system

for computer hacking >>6461343

>>6394458
my point has been made:

The electrical neutrality of stellar fusion is questionable.

dubito ergo cogito ergo sum

>welcome to the agora

>>6382020
>Which ions are used?
this is an "electrostatic" process and no ions are used or created (in theory). It is talking about "net charge" on the droplets.

>>6382023
>maybe we could turbocharge the process by adding a vertical vibrating coil assembly to interrupt high throughput streams at a high frequency

maybe, but the point is to have individual droplets separated by an air space.

>>6382026
>Can i power a light with this?

I'm not OP but, in theory (I hate that phrase) you could, but it would take a really big apparatus, you would not get much light for the effort.

Serious math help needed. I've found the formulations that describe the phenomena, but do not have the math skills to follow all of the transformations and to extract a needed piece of information.
This is in support of my thoughts on the unintended actions of a "Tesla coil device" which give modern explanations for some of Tesla's experimental results and statements about "free energy". According to Chu and Jackson the effect falls off with the 1/4 root of the current, but I'm having a hard time finding if the effect is limited by basic frequency of the energy in the helix or just the group velocity of the energy and it's relationship to the velocity of the current in the axial beam.

>>6382310
just read something the other day about research into electrical stimulation being able to induce regeneration in a frog.

>>6382531
>Hi /sci/ what do you think of esoteric physics?

mostly high grade bunk.
occasionally a rarely manifested effect is misinterpreted.
mostly high grade bunk tho...

dubito ergo cogito ergo sum

>>6381365
they are self-replicating, but show no sign of stimulus / response so... no they are not "alive"

>>6381257
a steady drip, they need to be individual water droplets but it takes a crap-tonne so the quicker they come the better as long as it's not a steady stream which shorts out the system

"Any small charge on either of the two buckets suffices to begin the charging process. Suppose, therefore, that the right bucket has a small positive charge. Now the left ring also has some positive charge since it is connected to the bucket. The charge on the left ring will attract negative charges in the water (ions) into the left-hand stream by (Coulombic) electrostatic attraction. When a drop breaks off the end of the left-hand stream, the drop carries negative charge with it. When the negatively charged water drop falls into its bucket (the left one), it gives that bucket and the attached ring (the right one) a negative charge.

Once the right ring has a negative charge, it attracts positive charge into the right-hand stream. When drops break off the end of that stream, they carry positive charge to the positively charged bucket, making that bucket even more positively charged."