Put a projector in there and have it display your thoughts from a Neuralink
A brief demonstration of my Titanium Cyborg Eye as a flashlight [video]
151–160 of 176 posts
Re: A brief demonstration of my Titanium Cyborg Eye as a flashlight [video]
#152Earlier quoted context omitted.
Weird, Bytedance has not done anything, to my knowledge, worse (or even better) than other big companies in consumer software space. Do you also not use Instagram? What about google or YouTube? They have done some pretty shady stuff. Or oculus VR? PayPal/stripe? All these companies have done extremely shady stuff, it's impossible to be at the top of any of these markets without being shady.
It's about China... Everyone that can (US, China, etc.) tries to guzzle as much data from online users as possible. That said, there are checks and balances in the US, there is a certain level of accountability. China is an absolute black box setting up an Orwellian social credit system for its own citizens, and with no accountability whatsoever about the data they might collect from foreign citizens. So, even if eve…
> That said, there are checks and balances in the US, there is a certain level of accountability.
I'm sorry but there is no accountability in US, there are price tags.
Re: A brief demonstration of my Titanium Cyborg Eye as a flashlight [video]
#153Earlier 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.
Do most of the videos that you watch there have such (subjectively) awful arrangement? I have no tiktok account, and am no hater, but I wouldn’t follow content like this either. Cannot imagine myself receiving a notification, watching $subj and thinking “this was a good one”. I mean it’s a cool idea and tech spirit, but the form… raised eyebrows
I am confused about what awful arrangement you are talking about, but an example of good learning videos is excel channels. They teach you nice tips and tricks and get to the point fast.
Re: A brief demonstration of my Titanium Cyborg Eye as a flashlight [video]
#154Earlier quoted context omitted.
Titanium has much less thermal mass than the same volume of water. Water is 4.2 J/g/K and 1 g/cc, thus 4.2 J/cc/K. https://en.wikipedia.org/wiki/Titanium is 25.060 J/mol/K, 4.506 g/cc, and 47.867 g/mol, so 0.5235 J/g/K and 2.359 J/cc/K. I think water is also a better thermal insulator if you can keep it from convecting, and a better heat spreader (to eliminate "a focused point of heat", which I agree is a problem) if…
Thanks for commenting. I'm a layman here so providing hard numbers helps me wrap my head around the comparison. I think you're saying that water is roughly double a better thermal insulator? I wonder if the man could devise a water layer around what generates the heat in order to reduce the chance for burning his body? He probably has to weigh the chance for water to mix with the components vs a simple titanium hunk…
I'm a layman too.
No, I didn't provide numbers on thermal conductivity, just specific heat, though it is now unfashionable to call it that.
Yes, putting some water inside the titanium would increase the thermal mass of the overall assemblage, and I don't know of anything that would work better than water for this. This would reduce the temperature to which the eye-socket tissue is heated by intermittent but high-intensity LED usage, reducing the risk of burns, because it smooths it out over time. If the LED is not at the top of the eye, or if the eye rotates, liquid water would also help to smooth it out over space.
However, to minimize the temperature to which the eye-socket tissue is heated, it would also be beneficial to interpose thermal insulation between the tissue and the heat source, such as a thick layer of teflon around the outside of the eyeball (or saline-solution-soaked teflon foam). This will slow heat transfer from the hot eyeball to the eye-socket tissue, giving blood flow more time to convect away the waste heat and thus producing a lower temperature in the sensitive tissue.
I think the more important issue here is that he's using low enough power with a low enough duty cycle that it isn't much of a problem.
Re: A brief demonstration of my Titanium Cyborg Eye as a flashlight [video]
#155An 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.
The black mirror episode 'The Entire History of You' shows a world where everyone has this capability. You might be interested in watching it.
Re: A brief demonstration of my Titanium Cyborg Eye as a flashlight [video]
#156Earlier quoted context omitted.
Ok, we've changed to that from https://www.reddit.com/r/nextfuckinglevel/comments/ybisa1/th... . Thanks!
Why would you knowingly link directly to a source even more hostile to users?
"Please submit the original source. If a post reports on something found on another site, submit the latter."
Re: A brief demonstration of my Titanium Cyborg Eye as a flashlight [video]
#157Earlier quoted context omitted.
Ok, we've changed to that from https://www.reddit.com/r/nextfuckinglevel/comments/ybisa1/th... . Thanks!
The Reddit link provides a better viewing experience and better discussion.
The Reddit link is still present for those who prefer it.
As bragr points out, the HN guidelines ask for the main link to be to the original source. Alternate links are welcome in the comments.
Re: A brief demonstration of my Titanium Cyborg Eye as a flashlight [video]
#158Needs a little "Zeiss Ikon" logo around the pupil.
Re: A brief demonstration of my Titanium Cyborg Eye as a flashlight [video]
#159I had expected to see him moving the flashlight around the room by just moving his eye and not his head; it hadn't occurred to me before that glass eyes aren't connected to the muscles used to move the eye around. I wonder if doing such a thing is within the realm of possibility.
Re: A brief demonstration of my Titanium Cyborg Eye as a flashlight [video]
#160Earlier quoted context omitted.
Good points. But a low-duty-cycle laser pointer eyeball could be more useful than a low-duty-cycle pacemaker. You could use the 2μW to charge up a capacitor for 24 hours and then have a minute and a half of 2mW, which is enough for a visible laser pointer reaching a few meters. 2mW light output is quite a bit brighter than that but requires more like 20mW power input. A 220 μF cap at 48 volts would hold 35 hours of 2…
"A 220 μF cap at 48 volts" How much does that weigh? How big is it? What's the leakage current? If it takes enough space away from the betavoltaic device, and thus reduces the power generation, then the cap will never fully charge. Not knowing what you're thinking of, I picked https://www.mouser.com/datasheet/2/427/134d-1763800.pdf mostly arbitrarily. Note that I'm a programmer, not a hardware person. The lightest we…
Yeah, that's a wet tantalum cap, those have higher leakage currents. An X7R MLCC like https://www.digikey.com/en/products/detail/united-chemi-con/... will probably have lower leakage, though the datasheet doesn't specify. Digi-Key says it costs US$45, it's 20 mm × 28.5 mm × 10 mm which is 5.7 cc, and probably close to 15 grams.
Leakage current usually increases superlinearly with voltage, though. If the tantalum's DC leakage is 10 μA at 50 volts, it's probably closer to 0.1 μA at 5 volts.
In capacitors with a given dielectric, the maximum energy is proportional to the volume of the dielectric, so although a 47 μF cap charged to 108 volts stores the same energy as a 220 μF cap charged to 50 volts, it also needs the same volume.
(I'm not an EE either; I only play one on HN.)
https://en.wikipedia.org/wiki/Human_eye says an adult human eyeball is about 23.7 mm × 24.2 mm × 23.4 mm, and a spheroid like that is π/6 of the corresponding cuboid, so you only have about 7.03 cc to work with.
So probably you'd have to settle for under 1 cc of capacitor, which (in the case of X7R anyway) means storing more like 15 seconds of 2 mW.