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Visible light frequency range: 430..790 THz (that's Tera Hertz)
Infrared frequency range: 0.3..430 THz
What application(s) do you have that require Tera-Hertz bandwidth?
If you have an important point to make, don't try to be subtle or clever. Use a pile driver. Hit the point once. Then come back and hit it again. Then hit it a third time - a tremendous whack.
--Winston Churchill
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I believe visible light travels further and reflects better so should get to a few more places, like the back of a PC.
OTOH, they say LiFi has better security than WiFi because 'light doesn't go through walls,' so the guys in the next building can't get your signals, but, but, unless of course they have windows (glass ones that is) that face your windows - and again with light having a longer range it could be any building on the street with LOS to your office windows. So once more only real security will be encryption.
They don't mention, what if you have different networks in the office, with WiFi can use separate channels, but with LiFi? Likely they will need to add baggage to the data to separate; it will be fast enough but will add complexity - and as everybody knows complexity = more issues, more failures and higher costs.
(Also won't be able to stream movies using the company WiFi when sitting on the toilet.)
It's a good idea, but it won't beat let alone replace RF.
Sin tack ear lol
Pressing the any key may be continuate
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Lopatir wrote: with WiFi can use separate channels, but with LiFi?
WiFi and LiFi are both electromagnetic energy and in fact are just different spectrums of the EM band. So, if you can have different WiFi channels you can have different LiFi channels. A WiFI channel after all, is just a EM frequency range, hence a LiFi channel will be the same.
In any case, LiFi will likely be used only for "Internet of Things".
#SupportHeForShe
Government can give you nothing but what it takes from somebody else. A government big enough to give you everything you want is big enough to take everything you've got, including your freedom.-Ezra Taft Benson
You must accept 1 of 2 basic premises: Either we are alone in the universe or we are not alone. Either way, the implications are staggering!-Wernher von Braun
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I guess can use different frequencies of light, be a bit tighter though so again troublesome.
TheGreatAndPowerfulOz< wrote: In any case, LiFi will likely be used only for "Internet of Things".
Fridge bound to complain about being flashed by the toaster, meanwhile youthful hackers using a laser pen will reprogram the robo-vac to target your dog and sh*t empty itself on the carpet.
Sin tack ear lol
Pressing the any key may be continuate
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LMAO! 
#SupportHeForShe
Government can give you nothing but what it takes from somebody else. A government big enough to give you everything you want is big enough to take everything you've got, including your freedom.-Ezra Taft Benson
You must accept 1 of 2 basic premises: Either we are alone in the universe or we are not alone. Either way, the implications are staggering!-Wernher von Braun
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Quote: Light waves can’t pass through walls like radio waves do, but that also makes the networks more secure.
Black lights are the only true security!
Sudden Sun Death Syndrome (SSDS) is a very real concern which we should be raising awareness of. 156 billion suns die every year before they're just 1 billion years old.
While the military are doing their part, it simply isn't enough to make the amount of nukes needed to save those poor stars. - TWI2T3D (Reddit)
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Quote: Black lights are the only true security!
Not if they exceed 10,000 lumens!
Get me coffee and no one gets hurt!
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Don't need security for EDM! World Peace! 
Sudden Sun Death Syndrome (SSDS) is a very real concern which we should be raising awareness of. 156 billion suns die every year before they're just 1 billion years old.
While the military are doing their part, it simply isn't enough to make the amount of nukes needed to save those poor stars. - TWI2T3D (Reddit)
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...temperature barely above zero and there still is snow. For those that live in the desert: That's water that falls from the sky as fine ice crystals.
Now I have the choice: Yet another debugging session of a huge piece of code that I ported to framework 4.2 and now has some problems. A shader (that's code for the graphics processor) which previously worked simply does nothing anymore. The .Net code in the graphics engine still does its job and feeds polygons and textures to the shader, there are no exceptions or any other signs of trouble, but nothing is rendered. Everything still worked until I had to recompile the shader as well. The problem probably is not on the .Net side, It looks like the compiler for the shader has some problems, even if it worked well for the other shaders.
Anyway, my other choice is to charge batteries and go out on a field and fly with the heli for the first time this year. Do we need a poll to make that decision?
The language is JavaScript. that of Mordor, which I will not utter here
This is Javascript. If you put big wheels and a racing stripe on a golf cart, it's still a f***ing golf cart.
"I don't know, extraterrestrial?"
"You mean like from space?"
"No, from Canada."
If software development were a circus, we would all be the clowns.
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Turn some money into noise!
Bad command or file name. Bad, bad command! Sit! Stay! Staaaay...
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Did you know the sky can be blue?
veni bibi saltavi
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Yes - it's bipolar.
Bad command or file name. Bad, bad command! Sit! Stay! Staaaay...
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Arctic more like!
veni bibi saltavi
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No, you're getting confused with where bipolar bears live.
Bad command or file name. Bad, bad command! Sit! Stay! Staaaay...
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You must keep in mind: when the poles ice melts, we will all be up to our necks in water. The bigger question still is where the Poles got all that ice from and what they need it for.
The language is JavaScript. that of Mordor, which I will not utter here
This is Javascript. If you put big wheels and a racing stripe on a golf cart, it's still a f***ing golf cart.
"I don't know, extraterrestrial?"
"You mean like from space?"
"No, from Canada."
If software development were a circus, we would all be the clowns.
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It's for Gin - Nagy is visiting.
Bad command or file name. Bad, bad command! Sit! Stay! Staaaay...
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CDP1802 wrote: when the poles ice melts, we will all be up to our necks in water.
You've just failed middle-school physics.
When the North Polar ice cap melts, the sea level will not rise by even a millimeter. That is because the northern ice cap floats on the water below. According to Archimedes' Law, it already displaces the amount of water that it would displace were it to melt.
I grant you that the melting of the South Polar ice cap will raise the sea level by 50-60 meters, which will have a major effect on coastal cities. It will also turn my apartment into a valuable beach-front property (yay!  ). However, at present it appears that the South Polar ice cap is gaining ice.
If you have an important point to make, don't try to be subtle or clever. Use a pile driver. Hit the point once. Then come back and hit it again. Then hit it a third time - a tremendous whack.
--Winston Churchill
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Daniel Pfeffer wrote: at present it appears that the South Polar ice cap is gaining ice.
Well, clearly it is stealing it from the North Pole.
Santa will have to put Antarctica on the Naughty List for next year.
Bad command or file name. Bad, bad command! Sit! Stay! Staaaay...
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And I think you failed at humour. 
CDP1802 wrote: The bigger question still is where the Poles got all that ice from and what they need it for.
Who are the Poles?
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Jörgen Andersson wrote: And I think you failed at humour.
 Did you learn that at school?
If you have an important point to make, don't try to be subtle or clever. Use a pile driver. Hit the point once. Then come back and hit it again. Then hit it a third time - a tremendous whack.
--Winston Churchill
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Sometimes you have to.
The Poles he's referring to comes from a neighboring country
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*Sigh*
I have failed indeed if I must explain.
The Poles (Polish: Polacy, pronounced [pɔˈlat͡sɨ]; singular masculine: Polak, singular feminine: Polka) are a nation and West Slavic ethnic group native to Poland. [^]
And the batteries performed well. I did not notice any sluggishness. I kept them in the car so that they did not get cold and during the flight they warm up from the inside. The motor can draw a current of up to 40 Ampere. Not many batteries can handle that without first getting really hot and then blowing up.
The real problem were my fingers. By the last flight I had almost no feeling left. I think I landed the heli by pure will alone.
There was only one little casualty: The cheap camera gave up. Perhaps I killed it when I pressed that tiny button with numb fingers, or it simply was too cold, or maybe it got wet when I dipped the landing skids into the snow. I'm going to take a look how much it recorded, if anything at all and maybe I can revive it.
The language is JavaScript. that of Mordor, which I will not utter here
This is Javascript. If you put big wheels and a racing stripe on a golf cart, it's still a f***ing golf cart.
"I don't know, extraterrestrial?"
"You mean like from space?"
"No, from Canada."
If software development were a circus, we would all be the clowns.
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CDP1802 wrote: I have failed indeed if I must explain.
Does this mean that we are Poles apart?
(running, ducking and hiding)
If you have an important point to make, don't try to be subtle or clever. Use a pile driver. Hit the point once. Then come back and hit it again. Then hit it a third time - a tremendous whack.
--Winston Churchill
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I got that, my question was rhetorical.
CDP1802 wrote: The motor can draw a current of up to 40 Ampere
 How big are those batteries actually? I feel battery tech has indeed gone forward. Is that NiMH or Lithium?
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I use those.[^]
They are not cheap, but I have been using mine for two years now and they still show excellent balance (all cells within 0.01 V difference) and still no noticable loss of capacity. I must have reached the 100 charge cycles which are usually assumed to be the life span of a lithium polymere battery, but they seem to be as fit as ever.
At the beginning of my old video[^] you can see both the heli and the batteries when I make it ready for the flight.
The language is JavaScript. that of Mordor, which I will not utter here
This is Javascript. If you put big wheels and a racing stripe on a golf cart, it's still a f***ing golf cart.
"I don't know, extraterrestrial?"
"You mean like from space?"
"No, from Canada."
If software development were a circus, we would all be the clowns.
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