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"Backyard Scientist" - idiocy never fails to astound me

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jogri:

--- Quote from: Cyberdragon on August 01, 2020, 08:28:05 pm ---Exactly, people "try it at home" all the time, what makes this case any more special? "Ahhh, lasers scary!" I mean sure, you could kill someone with it, just like a lot of stuff you shouldn't try at home...but...oh yeah?

https://en.m.wikipedia.org/wiki/David_Hahn

(I read the book, this guy was bat shit crazy)

:scared:

--- End quote ---

Most of the stuff people do at home only poses a risk to themself, but not others. Even a neutron source in a shed isn't that big a deal when said shed isn't standing right next to your neighbours bedroom...
But an invisible, extremely high power and focused laser aimed at other peoples houses (or possibly airplanes) poses a thread to them, even if they don't enter your property.

So yeah, a device that can easily blind people over a mile away (without them having a chance to avoid it) definitely falls under the "Aaaah, scary" category...

Lord of nothing:
Well play with X Ray Lamps and Magnetrons isnt dangerous for Neighbors?
I feel bad ass when I install my Wifi Scanner.  :-DD

EDIT:

m98:

--- Quote from: Lord of nothing on August 01, 2020, 09:21:17 pm ---Well play with X Ray Lamps and Magnetrons isnt dangerous for Neighbors?

--- End quote ---
Does one extremely dangerous thing negate the other? I for my part neither want to die of radiation sickness from sitting close to the wrong wall in my living room, nor getting blinded by taking one wrong look out the kitchen window.
Most people should feel similar, which is why activities that could lead to such results are strictly regulated.

jogri:

--- Quote from: Lord of nothing on August 01, 2020, 09:21:17 pm ---Well play with X Ray Lamps and Magnetrons isnt dangerous for Neighbors?
I feel bad ass when I install my Wifi Scanner.  :-DD

--- End quote ---

-the radiation from a x-ray tube is directed in one direction and gets heavily extenuated by walls (you can see that the reading drops by quite a bit when he is standing behind the door in the video)-> you only radiate your flat and even if a substantial amount of it gets inside your neighbours flat he won't go blind in a fraction of a second

-same goes for 2.5 GHz magnetrons, everything that contains water dampens them

But that isn't the important point, because both X-rays/Magnetrons/Neutron sources don't emit coherent radiation -> The intensity of those sources decreases with the square of of distance (Intensity ~ Radius^2). That's not at all the case with a laser beam, even the (presumably rather crappy) diode laser from this dude probably only has a divergence of ~5 mrad: That means the beam expands by 5mm for every meter it travels. Quite a difference to the Radius^2 intensity decrease of other radiation sources...

Edit: Too dumb to remember where the "square" part of the Inverse-square law came from, thx TimFox

Lord of nothing:
@m98 some People picked up some De pleaded Uranium Ammunition who was used in the illegal Yugoslavia War.


--- Quote ---the radiation from a x-ray tube is directed in one direction
--- End quote ---
Well inside the Housing or even when the (idiots from Ukraine) took it apart and use the "naked" Lamp?

--- Quote ---That's not at all the case with a laser beam
--- End quote ---
What we dont know if he was calling the Authorities before he perform his Test.
Sure some Youtuber dont show everything behind the scenes when it get into thinks who are maybe seem not so legal at first. I was talking with the Austrian Military Press Staff its possible to get Access to the huge Military Training Area for Filming. So in the case I would like show what happen back then I would maybe do some "sneak into" think to pretend I would do some illegal stuff but it would be approved by some officials. Maybe behind the Scenes are some poor Recruit over watch me.  :-DD

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