Seems we have a new invisibility cloak. Not quite Harry Potter cloaking as it doesn’t work on visible light.
Now I think they may be missing the point here. If I want to be invisible to infrared I wear some silver foil. Makes me stand out a bit to real live humans but it will fool the PIR on an alarm system. To actually work on visible light and be effective is going to be some trick.
To bend light round an object like a Romulan Warbird or James Bond’s Aston Martin ‘Vanish’ is going to take some doing. You see by creating a light hole humans, and computers, can see it and investigate. It’s one of those things that sounds easy but is in fact going to be difficult. To put it in context it’s going to be harder than getting an honest politician in Westminster.
You see our eyes spot movement and anomalies easily and you might be able to set up a scene where something is hidden easy enough but then view that scene from a different angle or even by moving a few inches [Spit to metric] you have an entirely different picture. No cloak can do that nor is it likely to do so in the near future. Now making a space ship invisible in the dark of space or a man invisible on an artic plain. Providing that the stars were nicely placed or there was very little movement But Harry Potter in the library with or without a candlestick not for a long time yet I suspect.
So the claim that we have an Invisibility Cloak needs to be taken with a big pinch of salt or as I like to say a big porky.
Exaggerating the case
Seems we have a new invisibility cloak. Not quite Harry Potter cloaking as it doesn’t work on visible light.
Now I think they may be missing the point here. If I want to be invisible to infrared I wear some silver foil. Makes me stand out a bit to real live humans but it will fool the PIR on an alarm system. To actually work on visible light and be effective is going to be some trick.
To bend light round an object like a Romulan Warbird or James Bond’s Aston Martin ‘Vanish’ is going to take some doing. You see by creating a light hole humans, and computers, can see it and investigate. It’s one of those things that sounds easy but is in fact going to be difficult. To put it in context it’s going to be harder than getting an honest politician in Westminster.
You see our eyes spot movement and anomalies easily and you might be able to set up a scene where something is hidden easy enough but then view that scene from a different angle or even by moving a few inches [Spit to metric] you have an entirely different picture. No cloak can do that nor is it likely to do so in the near future. Now making a space ship invisible in the dark of space or a man invisible on an artic plain. Providing that the stars were nicely placed or there was very little movement But Harry Potter in the library with or without a candlestick not for a long time yet I suspect.
So the claim that we have an Invisibility Cloak needs to be taken with a big pinch of salt or as I like to say a big porky.