5 ms·
Which begs the question: how hard is it to build a 30W, portable IR spotlight that you could get through a concert’s metal detector unnoticed?
by eastdakota 2y ago
Which begs the question: how hard is it to build a 30W, portable IR spotlight that you could get through a concert’s metal detector unnoticed?
- deleted 2y ago[deleted]
- mcpherrinm 2y ago> Taking photos/videos on small hand-held cameras and smartphones is permitted. I suspect you could fit that into the form factor for a "small hand-held camera" that is apparently permitted into the tour.
- amluto 2y agoIt would be a fantastic form factor. After all, such a device wants a decently large battery, focusing optics, and an emitting surface at the focal plane big enough to dissipate the waste heat. This sounds a lot like a small digital camera with the sensor removed and an IR LED array put in its place. Anyone aiming such a device across the venue would be extremely obvious, as everyone else’s inadequately filtered camera would see it :)
- risenshinetech 2y agoRight, because people looking through their cameras at all of the chaos, flashing lights and pulsating wristbands would _definitely_ notice one human being standing there with an IR transmitter and be able to understand what they were looking at.
- themoonisachees 2y agoI think at least a few photography nerds would notice the 30W white blob coming from where you're standing. Now whether that would get you in trouble...
- TeMPOraL 2y agoThey already have an even more powerful IR spotlight sweeping over the stadium; if that isn't ruining the photos, then I doubt the attacker's 30W source would even register.
- CydeWeys 2y agoCan confirm that everyone there is taking shitloads of photos and videos with their phones and I've never seen the stadium IR emitter appear in any of them.
- stavros 2y agoThe battery to run a 30W thing and the cooling required to dissipate it would look much closer to a large hand flashlight (the 3kg ones, with the handle) than a camera.
- jvanderbot 2y agoYou'd need a whole row of conspirators to bring in camera-sized components that could be fit together ...
- fmj 2y agoA single 18650 can do much more than 30W. My Emisar D4v2 can pull ~17A from a single 18650 on turbo mode, and it's not much bigger than the battery itself. I carry it on my belt everyday. It starts to get a little uncomfortable to hold and eventually triggers the thermal protection after about a minute of continuous turbo use, but that's more than enough for a quick prank. It runs an open source firmware too, so I could theoretically swap in some IR LEDs and program it with the appropriate modulation.
- amne 2y agodrones? that's a whole 'nother can of worms but it could work if you really .. really .. really want to be part of the light show.
- eastdakota 2y agoOh… drones are a really devious idea. You can imagine all sorts of political messages that someone may want to leverage an event like this to broadcast.
- tracerbulletx 2y agoFlying a drone over a major concert is liable to get you charged with terrorism somehow even if you're just trying to do a prank.
- bigiain 2y agoDoesn't need to be big enough to scare people that badly. You could sneak a heap of something like this into any big concert venue pretty easily: https://www.aliexpress.com/item/1005004496779816.html https://www.aliexpress.com/item/1005004496779816.html open them up and switch out the visible light LEDs for modulated IR ones, add a tiny microcontroller to send pre programmed data. Get you and a dozen friends to launch them all at the same time...
- Cthulhu_ 2y agoI wouldn't be surprised if concerts have anti-drone countermeasures in place already, given safety concerns.
- throwup238 2y agoLike what? This isn’t a battlefield, the FCC isn’t going to let them do any jamming and they sure as hell aren’t putting up CIWS cannons all over the place.
- 2y ago
- rahkiin 2y agoGo to a country where they do not use metal detectors in concerts