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New 3D thermal invisibility cloak makes objects disappear from infrared cameras

82 points by stevenalowe - 37 comments
tejtm [3 hidden]5 mins ago
whatsakandr [3 hidden]5 mins ago
This headline is wrong. This has nothing to do with thermal cameras. It's "cloaking" by making it appear to have the same bulk thermal properties as it's surroundings.
schiffern [3 hidden]5 mins ago
Yes. Unfortunately many people are reading this thinking it's a FLIR invisibility cloak.

FYI Ukraine already has FLIR invisibility cloaks (fancy camo space blankets): https://www.youtube.com/watch?v=GfdF3iIwoX4

This is thermal cloak, explained here: https://www.youtube.com/watch?v=CM2RJi4mRZ0&t=52s

Notably it only works after the heat flow settles back down to equilibrium. If you're moving, it doesn't work.

natpalmer1776 [3 hidden]5 mins ago
Which seems like it would be good for fixed installations that need to remain undetected, no?
schiffern [3 hidden]5 mins ago
The other caveat is that it only works if you're embedded inside a solid object. ;)

If you're in free space, the surface can't shine its IR differently in different directions, so under FLIR it will just look like the average ambient temperature. This is no better than existing (cheap and light) space blanket camo systems.

inSumErgoCogito [3 hidden]5 mins ago
So a "heatpump cooling", store concentrated heat and inject it into the ground would work much better?
AuthAuth [3 hidden]5 mins ago
This is gonna be going straight to Ukraine
MrDrMcCoy [3 hidden]5 mins ago
I certainly hope so!
sebstefan [3 hidden]5 mins ago
> Although the current cloak represents a major advance, the researchers want to develop more sophisticated versions capable of performing additional functions. One particularly important goal is to conceal objects that produce heat themselves

I read the entire thing thinking it could cloak a soldier

scotty79 [3 hidden]5 mins ago
It could cloak a well insulated soldier from being a dark spot on the background.
nickandbro [3 hidden]5 mins ago
I believe the Russians tried something similar in Ukraine with cloaking themselves to fool infrared drones.
qlte [3 hidden]5 mins ago
Using 50 cent Mylar blankets which ... did not work like they hoped from the videos I've seen.
bitwize [3 hidden]5 mins ago
We have AIs hacking people's computers and brains, and now we have the Major's thermo-optic camouflage. They were right to keep the newest Ghost in the Shell set in 2029-2030. Seems like it's right on time.
tescreal [3 hidden]5 mins ago
Next cyberpunk wizpop toy: thermoptic cameoflage.

The future is turning out to be fascinating as concerning.

computemachines [3 hidden]5 mins ago
Maybe this could be used to hide a cold spot from a wafer bake pin.
nxobject [3 hidden]5 mins ago
A Faraday for heat, eh?
dalmo3 [3 hidden]5 mins ago
I've always wanted to hide apples inside pears.
jagged-chisel [3 hidden]5 mins ago
Does this work for things that emit heat?
thenthenthen [3 hidden]5 mins ago
The article mentions thats the next step
SeanAnderson [3 hidden]5 mins ago
Doesn't everything emit heat? :)
chorsestudios [3 hidden]5 mins ago
no, the vacuum of space does not emit heat
antonvs [3 hidden]5 mins ago
Interstellar space behaves as an almost perfect blackbody radiator, at a temperature of 2.725 Kelvin, due to the cosmic microwave background. As such, it does "emit heat", albeit an extremely small, but measurable amount.
glitchc [3 hidden]5 mins ago
Let me answer your question with a question: Does the infrared camera detect emitted heat?
antonvs [3 hidden]5 mins ago
Not clear where your question is coming from, but it detects heat that's emitted as infrared radiation.
jagged-chisel [3 hidden]5 mins ago
Generally? Yes.

In this case? No idea.

vivzkestrel [3 hidden]5 mins ago
- future soldier 2 loading....
graboy [3 hidden]5 mins ago
Wow, a blanket!
thenthenthen [3 hidden]5 mins ago
More like an iron maiden
scotty79 [3 hidden]5 mins ago
When you cover yourself with the blanket, others see the blanket. When you cover yourself with this, others see background.
bamboozled [3 hidden]5 mins ago
Bad luck skynet
keyle [3 hidden]5 mins ago
And that Predator monster!
SV_BubbleTime [3 hidden]5 mins ago
[flagged]
jdlshore [3 hidden]5 mins ago
Is dismissing people’s work so rudely how you make yourself feel superior?
thin_carapace [3 hidden]5 mins ago
that guy taught me something new about glass in a snarky fashion , while you delivered pure snark. no comment to add, merely an observation
tarpitt [3 hidden]5 mins ago
you can't make a drone entirely out of glass
onion2k [3 hidden]5 mins ago
Can you fly a drone that's covered with a cloak?
mrandish [3 hidden]5 mins ago
Probably not very well if the drone is the typical (quad)copter type since the shield will likely obstruct the airflow from the propellers reducing lift. The added weight of the shield is also likely to be a problem in small drones as most are already weight constrained. Although in small electric copters like those used in Ukraine, I'm not sure how often thermal imaging is used as a primary detection vector (due to size, distance and daytime thermal delta from below).

Thermal is definitely a primary vector in detecting larger drones like the Reaper due to large combustion or jet engines, but in that case the challenge isn't cloaking the drone, it's cloaking the heat of the vented exhaust that's likely leaving a thermal 'contrail' across the sky.