What is Light ?

Testiculoor

What is Light ?

It is not a Solid
It is not a gas
It is not a liquid
It is not a plasma

So wtf is light ?
I think light is the 5th state as it doesn't fall into any of the above categories

Light heats Solid - the ground / sand
Light heats gas - our wind / weather
Light heats Liquid - our oceans
don't know what Light does to plasma

other questions regarding light

If space is really really cold and the light has to travel through space before hitting earth then why isn't light cold instead of hot ?

is it the friction of hitting our atmosphere that causes it to slow and heat up

These are just some of my questions regarding light

thank you

MajesticDonkey

It's a type electromagnetic radiation.

If space is really really cold and the light has to travel through space before hitting earth then why isn't light cold instead of hot ?

Cold is a lack of heat, hence cold cannot "latch onto" heat. It's the other way around.

8k2q1gfcz9s5d4

Testiculoor wrote: »

What is Light ?

Energy

donvito99

Light doesn't exist.

Duh

crazygeryy

What is light
Oh baby, don't hurt me
Don't hurt me no more


ooops wrong thread.

Mr. CooL ICE

...baby don't hurt me, don't hurt me, no more


edit -> gaaaaahhhhh

PizzamanIRL

I don't know. It's there and that's all that matters to me.

PizzamanIRL

crazygeryy wrote: »

What is light
Oh baby, don't hurt me
Don't hurt me no more


ooops wrong thread.

LordChessington wrote: »

...baby don't hurt me, don't hurt me, no more


edit -> gaaaaahhhhh

Waaaaayyy!

af_thefragile

Baby don't hertz me...
Don't hetz me...
No Morse!






Seriously speaking its a mystery that no one fully understands. Its an energy wave but it also behaves like matter. Photons that make up light exert mass but also travel in waves which is why they have certain frequencies, can diffract and all but they are also affected by gravity as they bend around bodies that have a large mass such as yore mama!

SV

Anything under 11 stone for men and anything under 8 stone for women is pretty light

jester77

It's not real butter if it has light in the name

Hoop66

Light is electromagnetic radiation that is visible to the human eye.

bacon n eggs

feathers

chakotha

It arises from the relation between electricity and magnetism. Or electromagnetism's relationship with itself. Or...


This sums it up.

Frank Black

and does it go off when you close the fridge?


it must be the most mysterious substance known to man.

Noxin

It's that $hit at the end of the tunnel

MajesticDonkey

Noxin wrote: »

It's that $hit at the end of the tunnel

Not since the government turned it off once we hit recession.

Dempsey

MajesticDonkey wrote: »

It's a type electromagnetic radiation.


Cold is a lack of heat, hence cold cannot "latch onto" heat. It's the other way around.

Hoop66 wrote: »

Light is electromagnetic radiation that is visible to the human eye.

Ye seem so sure when the the scientific community still struggle to conclusively define what light is.

Yer noble prizes are in the post! :pac:

faceman

Those Special K breakfast bars are pretty light.

**Vai**

Its the opposite of dark.

Sorry.

dilallio

For years the electrical utility companies have led the public to believe they were in business to supply electricity to the consumer, a service for which they charge a substantial rate. The recent accidental acquisition of secret records from a well known power company has led to a massive research campaign which positively explodes several myths and exposes the massive hoax which has been perpetrated upon the public by the power companies.

The most common hoax promoted the false concept that light bulbs emitted light; in actuality, these 'light' bulbs actually absorb DARK which is then transported back to the power generation stations via wire networks. A more descriptive name has now been coined; the new scientific name for the device is DARKSUCKER.

This newsletter introduces a brief synopsis of the darksucker theory, which proves the existence of dark and establishes the fact that dark has great mass, and further, that dark particle (the anti-photon) is the fastest known particle in the universe. Apparently, even the celebrated Dr. Albert Einstein did not suspect the truth: that just as COLD is the absence of HEAT, LIGHT is actually the ABSENCE of DARK... scientists have now proven that light does not really exist!

The basis of the darksucker theory is that electric light bulbs suck dark. Take for example, the darksuckers in the room where you are right now. There is much less dark right next to the darksuckers than there is elsewhere, demonstrating their limited range. The larger the darksucker, the greater its capacity to suck dark. Darksuckers in a parking lot or on a football field have a much greater capacity than the ones in used in the home, for example.

It may come as a surprise to learn that darksuckers also operate on a celestial scale; witness the Sun. Our Sun makes use of dense dark, sucking it in from all the planets and intervening dark space. Naturally, the Sun is better able to suck dark from the planets which are situated closer to it, thus explaining why those planets appear brighter than do those which are far distant from the Sun.

Occassionally, the Sun actually oversucks; under those conditions, dark spots appear on the surface of the Sun. Scientists have long studied these 'sunspots' and are only recently beginning to realize that the dark spots represent leaks of high pressure dark because the Sun has oversucked dark to such an extent that some dark actually leaks back into space. This leakage of high pressure dark frequently causes problems with radio communications here on Earth due to collisions between the dark particles as they stream out into space at high velocity via the black 'holes' in the surface of the Sun.

As with all manmade devices, darksuckers have a finite lifetime caused by the fact that they are not 100% efficient at transmitting collected dark back to the power company via the wires from your home, causing dark to build up slowly within the device. Once they are full of accumulated dark, they can no longer suck. This condition can be observed by looking for the black spot on a full darksucker when it has reached maximum capacity of untransmitted dark... you have surely noticed that dark completely surrounds a full darksucker because it no longer has the capacity to suck any dark at all.

A candle is a primitive darksucker. A new candle has a white wick. You will notice that after the first use the wick turns black, representing all the dark which has been sucked into it. If you hold a pencil next to the wick of an operating candle, the tip will turn black because it got in the way of the dark flowing into the candle. It is of no use to plug a candle into an electrical outlet; it can only collect dark, and has no transmission capabilities. Unfortunately, these primitive darksuckers have a very limited range and are hazardous to operate because of the intense heat produced.

There are also portable darksuckers called flashlights. The bulbs in these devices collect dark which is passed to a dark storage unit called a battery. When the dark storage unit is full, it must be either emptied (a process called 'recharging') or replaced before the portable darksucker can continue to operate. If you break open a battery, you will find dense black dark inside, evidence that it is actually a compact dark storage unit.

**Vai**

Copy and paste that from nonsense.com?

Yitzhak Rabin

When you get to complex questions like that, it can only really be adequately explained using mathemathics.

Our brains evolved in a macro world, so when we try and understand and get our heads around the quantum world for the vast majority of us, its impossible.

Unless you take a colossal amount of LSD, and it all becomes clear then.

Antar Bolaeisk

It's an electromagnetic waveform (that can also act as a particle), the frequency of which resides in our visible spectrum.

Sky King

"-I have an idea. Everybody has ideas".

"- What's an idea, Frank?"

"- It's a weightless electrical charge that don't stand up in no court of reality, which is where we're ALL gonna be tried."

johnny_knoxvile

not Mary Harney.

mikom

Testiculoor wrote: »

Watt is Light ?

400..... high pressure sodium.

Duggy747

https://www.youtube.com/watch?v=-fSqFWcb4rE

tin79

Coors Light is a liquid (for pussys).

Latchy

100 Watt bayonet bulbs do it for me . The Brussels bureaucrats tried to ban then from UK but you can still buy them in many places . I hate those dim as **** florescent light bulbs...you would get better light from a Roman candle .

Now where were we ? oh yes ...what is Light ?

bacon n eggs

Coors Light is a liquid (for pussys).

How dare you ...Jean Claude ...ohhhh... yeah see what you mean.

mikehammer67

i thought it was budweiser that came up with the idea

WindSock

Yitzhak Rabin wrote: »

When you get to complex questions like that, it can only really be adequately explained using mathemathics.

Our brains evolved in a macro world, so when we try and understand and get our heads around the quantum world for the vast majority of us, its impossible.

Unless you take a colossal amount of LSD, and it all becomes clear then.

Pull the other one! Ingesting a gingload of LED's isn't going to learn us jackshit about light. Sounds like you're trippin'.

sbsquarepants

WindSock wrote: »

Pull the other one! Ingesting a gingload of LED's isn't going to learn us jackshit about light. Sounds like you're trippin'.

Damn it windsock, if there is even a tiny chance, then we must take it. We simply must. Now be a dear would you and pass the acid:D

srsly78

OP they cover this in junior cert science, just wait a few years.

dd972

wud ye schtop yer nonsense, OP and schtart a Traveller thread instead

MajesticDonkey

Dempsey wrote: »

Ye seem so sure when the the scientific community still struggle to conclusively define what light is.

Yer noble prizes are in the post! :pac:

It is a form of electromagnetic radiation. This can be proved scientifically. What's not understood is how the energy is transferred.

Dempsey

MajesticDonkey wrote: »

It is a form of electromagnetic radiation. This can be proved scientifically. What's not understood is how the energy is transferred.

Light does exhibit electromagnetic radiation but thats not what it is. Light has both wave and particle characteristics, which the scientific community have argued about for centuries and still argue about. Your simplistic answer is not correct.

dfx-

Which is more obtuse a subject. Light or time..

bellylint

Balloons are

Right hit me with the next one

BBDBB

A feather

Valetta

It's completely different to hard.

I've often gone to sleep with a light on.

MajesticDonkey

Dempsey wrote: »

Light does exhibit electromagnetic radiation but thats not what it is. Light has both wave and particle characteristics, which the scientific community have argued about for centuries and still argue about. Your simplistic answer is not correct.

My answer is completely correct, but it's not the whole answer. Look at the first line of the "Light" page on Wikipedia, or any online dictionary/reference for that matter. Light is a form or electromagnetic radiation with a very specific wavelength and frequency. It has the same characteristics as has infrared, ultravoilet, gamma, xray, radio, microwave and whatever other waves you want to talk about. I agree that it also has particle characteristics, but it's still a form of electromagetic radiation.

wretcheddomain

I learned this definition in school for the LC Physics exam:

'Light is the version of coke obese people purchase to lessen their insecurity in fast food chains.'

mawk

Dempsey wrote: »

Ye seem so sure when the the scientific community still struggle to conclusively define what light is.

Yer noble prizes are in the post! :pac:

being an engineer that makes lasers. I call bullandorhorse****.

Antar Bolaeisk

mawk wrote: »

being an engineer that makes lasers. I call bullandorhorse****.

Haven't they still to nail down why it acts the way it does?

srsly78

Yes there are many mysteries, however the basic definition is nailed down. Light is DEFINED as electromagnetic radiation, so ignore that eejit on the last page.

And yes this means x-rays+microwaves etc are light. Just not visible light.

EoghanIRL

It's electro magnetic radiation visible to humans . The associated particle is the photon which is massless allowing it to travel so fast .

ted1

Testiculoor wrote: »

What is Light ?



thank you

Its really all retrospective tu humans feathers are light, but to bacteria feathers are heavy. To women a light beer is light , to men it's gay

mawk

Antar Bolaeisk wrote: »

Haven't they still to nail down why it acts the way it does?

not really.. Its fairly well understood. we know what photons are made of, we understand quantum interactions and macro actions of particle and wave motion are all understood.

its a mental oddity to think of it in terms of single pellets of light which behave one way but when there is a whole bunch of them they move in a wave, but thats the jist of light. the colour is all to do with the shape of the wave they move in and how much energy they lose when they bounce off things.

Mind hurtingly, things dont have colours as an inherent property. its all down to what bits of the white light are and arent sucked into the object and kept there

Dempsey

our current definition of light will change as we find out more