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A brief demonstration of my Titanium Cyborg Eye as a flashlight [video]

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Re: A brief demonstration of my Titanium Cyborg Eye as a flashlight [video]

#161

Post by robert_tweed »

eesmith wrote: post #59
cogman10 wrote: post #50

Earlier quoted context omitted.

Not the same thing and we don't really do that. Pacemakers are typically lithium iodide which do not have the same risk of uncontrolled burning (that's the nickel variety). But also, the pacemaker sits outside the body with probes going inside. You'd not want another surgery just to change a battery.

One of the exceptions, nuclear pacemakers using Pu-238 or Pm-147. "The History of Nuclear Powered Pacemakers" - http://large.stanford.edu/courses/2015/ph241/degraw2/ > Despite the often longer life-expectancies, nuclear pacemakers quickly became a part of the past when lithium batteries were developed. Not only did the technology improve, allowing for lighter, smaller, and programmable pacemakers, but doctors began t…

A glass eye filled with tritium would probably give enough light to read with, continuously, with a half-life of 10 years.

It might get a bit annoying when you want to go to sleep though.

https://en.wikipedia.org/wiki/Tritium_radioluminescence

Re: A brief demonstration of my Titanium Cyborg Eye as a flashlight [video]

#162

Post by jalgos_eminator »

tediousdemise wrote: post #136

An always-on camera would be my favorite cyborg eye use case. Imagine being able to go back and relive memories from your perspective. ML could be used to automatically caption and bookmark significant events for searchability.

That's part of the world in the dystopian movie "Anon" - https://www.imdb.com/title/tt5397194/

You can replay any moment in your life that your eyes saw or your ears heard... but so can the government.

Re: A brief demonstration of my Titanium Cyborg Eye as a flashlight [video]

#163

Post by dymk »

xeromal wrote: post #135
dymk wrote: post #76

Earlier quoted context omitted.

LEDs of a couple of watts do emit a noticeable amount of heat. Being titanium doesn’t mean anything - here the heat has to go somewhere eventually. Either out of the front of the eye where it’s “uninsulated” or it’ll get hot enough internally that the body will get warm.

> Being titanium doesn’t mean anything This is a pretty confident answer, but I think you miss the point of the titanium. It can act as a heat battery and slowly let it dissipate all around vs a focused point of heat.

Well sure it's a confident answer - that's just how physics works. You generate heat in an enclosed area, it's going to leak out. The hotter it gets inside, the faster it's going to dissipate through the material containing it.

The question is how hot will it get for some amount of LED on-time.

Re: A brief demonstration of my Titanium Cyborg Eye as a flashlight [video]

#164

Post by xeromal »

dymk wrote: post #163
xeromal wrote: post #135

Earlier quoted context omitted.

> Being titanium doesn’t mean anything This is a pretty confident answer, but I think you miss the point of the titanium. It can act as a heat battery and slowly let it dissipate all around vs a focused point of heat.

Well sure it's a confident answer - that's just how physics works. You generate heat in an enclosed area, it's going to leak out. The hotter it gets inside, the faster it's going to dissipate through the material containing it. The question is how hot will it get for some amount of LED on-time.

But it kind of misses the point. The titanium does do something. It slows down the heat dissipation to an unnoticeable level according to the creator.

The comment was confident and correct, but not accounting for the whole picture. Couple that with a level of snarkiness, and it's a classic internet comment that makes the internet worse IMHO.

I'm always reminded of that comment on hackernews that shits on dropbox when it was launched. It was correct and of course dropbox was "trivial" to copy using a couple of commands, but it misses the point.

Re: A brief demonstration of my Titanium Cyborg Eye as a flashlight [video]

#165

Post by xypage »

worldsayshi wrote: post #122
nigerianbrince wrote: post #35

Earlier quoted context omitted.

> Putting a battery inside your eye socket seems incredibly risky to me, though We already do this with pacemakers

Not sure why putting a battery in your pocket at all time or one strapped to your wrist is that much safer.

The one in your pocket is dry, plus if it did somehow start conducting through you it'd zap your leg/wrist and hurt, maybe cause you to spasm and kick something, but that's it. If one on your heart/in your eye socket does it, it wouldn't take much for that to give you a heart attack or shock your optical nerves which is a very short wire into your brain, and as such I can only imagine it would be very very bad for you.

Re: A brief demonstration of my Titanium Cyborg Eye as a flashlight [video]

#168

Post by eesmith »

robert_tweed wrote: post #161
eesmith wrote: post #59

Earlier quoted context omitted.

One of the exceptions, nuclear pacemakers using Pu-238 or Pm-147. "The History of Nuclear Powered Pacemakers" - http://large.stanford.edu/courses/2015/ph241/degraw2/ > Despite the often longer life-expectancies, nuclear pacemakers quickly became a part of the past when lithium batteries were developed. Not only did the technology improve, allowing for lighter, smaller, and programmable pacemakers, but doctors began t…

A glass eye filled with tritium would probably give enough light to read with, continuously, with a half-life of 10 years. It might get a bit annoying when you want to go to sleep though. https://en.wikipedia.org/wiki/Tritium_radioluminescence

Assuming I did the math right:

2 cd/m2 * (7mm * 7mm * pi) = 0.00030787608 candelas = 307 µ candela.

Doesn't seem like much light.

Re: A brief demonstration of my Titanium Cyborg Eye as a flashlight [video]

#169

Post by [deleted] »

lrvick wrote: post #118
newswasboring wrote: post #15

Earlier quoted context omitted.

Why? I've been on HN forever and I'm a huge TikTok fan. I will never understand the outright rejection on TikTok, there are so many cool projects which produce TikTok devlogs. Not just that several niches which I don't see often enough on HN (like AI ethics, not just copy right stuff) have entire channels on TikTok.

I do not care how good the content is. Anyone that posts there is demanding people pay for access with behavioral data on how many microseconds they view each post, what apps they have installed, where they are located, what locations they frequent, everything they type or view in the built-in web browser, etc. All this data goes to a centralized surveillance capitalism organization controlled by an authoritarian for…

[deleted]

Re: A brief demonstration of my Titanium Cyborg Eye as a flashlight [video]

#170

Post by bovermyer »

hnbad wrote: post #57
bovermyer wrote: post #36

Earlier quoted context omitted.

You're focusing solely on the content. My abject hatred of TikTok stems from who controls it.

"Abject hatred" seems a bit much, even for TikTok. When it comes to negative impact on humanity, Meta seems far more hate-worthy. And it's not like this list is particularly short (e.g. nearly every venture a16z is involved in seems like it should get a spot). Heck, even HN isn't without sin.

My hatred is not so much for TikTok itself, but for the controlling entity a few steps removed.

If I were to judge TikTok solely on its own merits as a service then I would just be sitting at a "smoldering disdain" with perhaps a dash of sadness for modern preoccupation with frequent dopamine hits.

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