3 ms·

Not sure about the point of this. Okay, the heat pipe is a reasonable idea, but a light that matches my local sun cycle would be useless: At night (when I actua

Not sure about the point of this. Okay, the heat pipe is a reasonable idea, but a light that matches my local sun cycle would be useless: At night (when I actually need it) it would be off. Clearly I'm missing something.

achow 8y ago
> Okay, the heat pipe is a reasonable idea.. Even that is not. ...water cooling process works by condensation. As the processor heats up, the liquid essentially vaporizes, keeping the CPU cool. The vapor then travels to the opposite end of the of the heat pipe, where it condenses back into liquid when cooled off. 2016. Samsung Galaxy S7 https://www.howtogeek.com/365535/how-does-water-cooling-work-in-a-phone/ https://www.howtogeek.com/365535/how-does-water-cooling-work...
- Animats 8y ago
  I have a Shuttle PC from 2003 with heat pipe cooling. For about 10 years, they made machines with a heat pipe system to transfer heat from the CPU chip surface to a finned plate at the back of the box behind the fan, allowing a more compact package. But for an LED? Come on. The cutting edge technology in LED lighting is to use power supplies that don't need electrolytic capacitors. The capacitor usually fails long before the LED.
- ghusbands 8y ago
  > > Okay, the heat pipe is a reasonable idea.. > Even that is not. Did you mean to claim that a heat pipe is not reasonable? (the rest of your comment doesn't make your point clear)
dragonwriter 8y ago
> but a light that matches my local sun cycle would be useless: At night (when I actually need it) it would be off. The daylight cycle matching (and the manual tuning) varies color temp between 2700K and 6500K; it doesn't (at least, in any of the description) vary light level. It's basically the same concept (but more localized) as f.lux for desktop screens.
- dingaling 8y ago
  That might be OK for casual use but is a non-starter for anyone who deals with colours, photos or documents. The entire 'warm white' concept is based around the colour temperature of candles, those being traditionally associated with night illumination. But look at the actual colour temp of an overcast sky just after Sunset; it's 5000K+ blue-grey, not 2500K yellow. The latter has no place in nature other than fire. Yet somehow our ancestors managed to go to sleep...
  - dragonwriter 8y ago
    > That might be OK for casual use but is a non-starter for anyone who deals with colours, photos or documents. I think you just mean colors, but tried to find three different ways to say it (and kind of failed, because lots of people “deal with” document all the time and aren't concerned with color.) At any rate, the light came be fixed at any supported point, too, the matching is just an available function, not something you are locked into. So for uses for which it doesn't meet your needs, you would just not use it. > But look at the actual colour temp of an overcast sky Not sure about handling the overcast part, but that's explicitly what this does otherwise. > The latter has no place in nature other than fire. Yet somehow our ancestors managed to go to sleep... Not sure what your point is, since the color of natural light just after sunset is only relevant here if you think humans are optimized for sleep at twilight. Which...they aren't.

achow 8y ago

> Okay, the heat pipe is a reasonable idea.. Even that is not. ...water cooling process works by condensation. As the processor heats up, the liquid essentially vaporizes, keeping the CPU cool. The vapor then travels to the opposite end of the of the heat pipe, where it condenses back into liquid when cooled off. 2016. Samsung Galaxy S7 https://www.howtogeek.com/365535/how-does-water-cooling-work-in-a-phone/ https://www.howtogeek.com/365535/how-does-water-cooling-work...

Animats 8y ago
I have a Shuttle PC from 2003 with heat pipe cooling. For about 10 years, they made machines with a heat pipe system to transfer heat from the CPU chip surface to a finned plate at the back of the box behind the fan, allowing a more compact package. But for an LED? Come on. The cutting edge technology in LED lighting is to use power supplies that don't need electrolytic capacitors. The capacitor usually fails long before the LED.
ghusbands 8y ago
> > Okay, the heat pipe is a reasonable idea.. > Even that is not. Did you mean to claim that a heat pipe is not reasonable? (the rest of your comment doesn't make your point clear)

dragonwriter 8y ago

> but a light that matches my local sun cycle would be useless: At night (when I actually need it) it would be off. The daylight cycle matching (and the manual tuning) varies color temp between 2700K and 6500K; it doesn't (at least, in any of the description) vary light level. It's basically the same concept (but more localized) as f.lux for desktop screens.

dingaling 8y ago
That might be OK for casual use but is a non-starter for anyone who deals with colours, photos or documents. The entire 'warm white' concept is based around the colour temperature of candles, those being traditionally associated with night illumination. But look at the actual colour temp of an overcast sky just after Sunset; it's 5000K+ blue-grey, not 2500K yellow. The latter has no place in nature other than fire. Yet somehow our ancestors managed to go to sleep...
- dragonwriter 8y ago
  > That might be OK for casual use but is a non-starter for anyone who deals with colours, photos or documents. I think you just mean colors, but tried to find three different ways to say it (and kind of failed, because lots of people “deal with” document all the time and aren't concerned with color.) At any rate, the light came be fixed at any supported point, too, the matching is just an available function, not something you are locked into. So for uses for which it doesn't meet your needs, you would just not use it. > But look at the actual colour temp of an overcast sky Not sure about handling the overcast part, but that's explicitly what this does otherwise. > The latter has no place in nature other than fire. Yet somehow our ancestors managed to go to sleep... Not sure what your point is, since the color of natural light just after sunset is only relevant here if you think humans are optimized for sleep at twilight. Which...they aren't.