Free Republic
Browse · Search
General/Chat
Topics · Post Article

Skip to comments.

A new camera can photograph you from 45 kilometers away
MIT Technology Review ^ | 5/3/19 | by Emerging Technology from the arXiv

Posted on 05/04/2019 12:20:44 AM PDT by LibWhacker

click here to read article


Navigation: use the links below to view more comments.
first previous 1-2021-4041-6061-66 next last
To: wjcsux

you are always being watched.

I spent some time in Taiwan, Not Mainland.

The locals claimed that after dark one of every three people you passed, was a government informant.

Walked and took cabs everywhere, never a hint of a problem.
I always carried a card with my address in English and Chinese, in case I became lost, the people were very nice.


41 posted on 05/04/2019 7:41:33 AM PDT by DUMBGRUNT ("The enemy has overrun us. We are blowing up everything. Vive la France!")
[ Post Reply | Private Reply | To 26 | View Replies]

To: tired&retired
Zheng-Ping and co use an infrared laser with a wavelength of 1550 nanometers

Souhnds like it's using a solid-state laser in the short-wave infrared, in the "gap" between visible and thermal radiation.

42 posted on 05/04/2019 7:46:02 AM PDT by NorthMountain (... the right of the peopIe to keep and bear arms shall not be infringed)
[ Post Reply | Private Reply | To 15 | View Replies]

To: vannrox

The Harbor Freight version will be good for half that distance for a couple of uses.


43 posted on 05/04/2019 8:02:34 AM PDT by wally_bert (Disc jockeys are as interchangeable as spark plugs.)
[ Post Reply | Private Reply | To 7 | View Replies]

To: LibWhacker

Electric Eye - Judas Priest

Up here in space
I’m looking down on you
My lasers trace
Everything you do

You think you’ve private lives
Think nothing of the kind
There is no true escape
I’m watching all the time

I’m made of metal
My circuits gleam
I am perpetual
I keep the country clean

I’m elected electric spy
I’m protected electric eye

Always in focus
You can’t feel my stare
I zoom into you
You don’t know I’m there

I take a pride in probing all your secret moves
My tearless retina takes pictures that can prove

I’m made of metal
My circuits gleam
I am perpetual
I keep the country clean

I’m elected electric spy
I’m protected electric eye

Electric eye, in the sky
Feel my stare, always there
Theres nothing you can do about it
Develop and expose
I feed upon your every thought
And so my power grows

I’m made of metal
My circuits gleam
I am perpetual
I keep the country clean

I’m elected electric spy
I’m protected electric eye


44 posted on 05/04/2019 8:06:51 AM PDT by dfwgator (Endut! Hoch Hech!)
[ Post Reply | Private Reply | To 1 | View Replies]

To: LibWhacker

Range gate cameras have been around for 30yrs+/-.


45 posted on 05/04/2019 8:09:27 AM PDT by sasquatch
[ Post Reply | Private Reply | To 1 | View Replies]

To: NorthMountain

Sounds like it’s using...

If you were the China Inc. Propaganda Minister, how would want to present your new(?) camera?

Play it down to conceal your abilities?

Build it up?

???


46 posted on 05/04/2019 8:22:50 AM PDT by DUMBGRUNT ("The enemy has overrun us. We are blowing up everything. Vive la France!")
[ Post Reply | Private Reply | To 42 | View Replies]

To: DUMBGRUNT

That which is described in the article is technologically plausible, does not violate the laws of physics, and is not terribly dissimilar to a laser altimeter.


47 posted on 05/04/2019 8:30:36 AM PDT by NorthMountain (... the right of the peopIe to keep and bear arms shall not be infringed)
[ Post Reply | Private Reply | To 46 | View Replies]

To: Sontagged

Thank you, that is just what I was needing, my first thought was curvature of the earth, Dad had said we can only see about 25 miles at best.


48 posted on 05/04/2019 8:54:40 AM PDT by Jolla
[ Post Reply | Private Reply | To 18 | View Replies]

To: Sontagged

The refraction from the Earth’s atmosphere lets you see stars 2 degrees below the horizon. I don’t know how that would translate for an object on the surface.


49 posted on 05/04/2019 9:09:41 AM PDT by Styria
[ Post Reply | Private Reply | To 18 | View Replies]

To: Sontagged; mindburglar
Accurately calculate the curvature you are supposed to see on the ball Earth.

Sounds like the Chinese are proving the Flat Earth community is right after all (and that God created the Earth and the universe as well).



50 posted on 05/04/2019 9:46:09 AM PDT by philman_36 (Pride breakfasted with plenty, dined with poverty and supped with infamy. Benjamin Franklin)
[ Post Reply | Private Reply | To 18 | View Replies]

To: LibWhacker

This camera won’t work in the US. We don’t have kilometers here.


51 posted on 05/04/2019 10:57:03 AM PDT by Verginius Rufus
[ Post Reply | Private Reply | To 1 | View Replies]

To: Verginius Rufus
This camera won’t work in the US. We don’t have kilometers here.

Hah! I knew the metric system was evil.

52 posted on 05/04/2019 11:01:31 AM PDT by Billthedrill
[ Post Reply | Private Reply | To 51 | View Replies]

To: Verginius Rufus

This camera won’t work in the US. We don’t have kilometers here.


Well, nuts. Back to the drawing board.


53 posted on 05/04/2019 11:08:53 AM PDT by sparklite2 (Don't mind me. I'm just a contrarian.)
[ Post Reply | Private Reply | To 51 | View Replies]

To: Sontagged
down and dirty is Sqrt 3/2H
54 posted on 05/04/2019 11:43:32 AM PDT by Chode ( WeÂ’re America, Bitch!)
[ Post Reply | Private Reply | To 18 | View Replies]

To: Sontagged

Great point.

I completely forgot about the curvature of the Earth.

And thanks for the math class!


55 posted on 05/04/2019 12:28:42 PM PDT by zeestephen
[ Post Reply | Private Reply | To 18 | View Replies]

To: DUMBGRUNT

I tried to find these U2 camera/lens specs before I posted on what the number for the curve would be on supposed ball earth... so thanks for posting!

It’s like we have to reinvent the wheel because scientism is such dumbed-down NASA Islam lovin’ climate change lovin’ nonsense.


56 posted on 05/04/2019 2:33:11 PM PDT by Sontagged ("The heavens declare the glory of God; and the firmament sheweth his handiwork." -Psalm 19:1)
[ Post Reply | Private Reply | To 40 | View Replies]

To: philman_36

;)


57 posted on 05/04/2019 2:33:52 PM PDT by Sontagged ("The heavens declare the glory of God; and the firmament sheweth his handiwork." -Psalm 19:1)
[ Post Reply | Private Reply | To 50 | View Replies]

To: zeestephen; philman_36
Your welcome... just spitting out the numbers for the supposed ball earth so we all can figure out if the Bible is correct about the shape of the earth... or not...

I don't like nation-states who hate the U.S. to have technology that works according to Biblical science, while we are all brainwashed by climate change loving NASA’s “scientism”...

58 posted on 05/04/2019 2:39:18 PM PDT by Sontagged ("The heavens declare the glory of God; and the firmament sheweth his handiwork." -Psalm 19:1)
[ Post Reply | Private Reply | To 55 | View Replies]

To: Styria; philman_36

The curvature for ball-earthers, as you can see, is extremely steep. At one mile it’s six feet, which means you would not be able to see anyone with a big focus camera at one mile, they would be underneath the curve.

It’s also extremely Biblical as all the numbers for the curvature and spin on ball earth are weirdly either 666 or some derivative.


59 posted on 05/04/2019 2:43:22 PM PDT by Sontagged ("The heavens declare the glory of God; and the firmament sheweth his handiwork." -Psalm 19:1)
[ Post Reply | Private Reply | To 49 | View Replies]

To: mindburglar

The loose masks DO work from spreading ones one germs. I was wondering if that was the reason - that is not only a nice gesture, but an effective one! But all sorts of folks wear them when it gets smoky which doesn’t help much.

Heh - bringing this back onto the topic - with this new camera, ANY mask might be the prudent thing to start wearing!

There are high-res photos of the outdoors that are pretty amazing. One of Mount Everest, one of Half-Dome in California. The one at half-dome shows most of the valley, with half-dome on the other side - maybe a mile away - takes up maybe 10% of the photo.

But then you can zoom in anywhere on the photo and can see people’s faces that are hiking or standing on half-dome! It is pretty amazing.


60 posted on 05/04/2019 3:03:12 PM PDT by 21twelve (!)
[ Post Reply | Private Reply | To 37 | View Replies]


Navigation: use the links below to view more comments.
first previous 1-2021-4041-6061-66 next last

Disclaimer: Opinions posted on Free Republic are those of the individual posters and do not necessarily represent the opinion of Free Republic or its management. All materials posted herein are protected by copyright law and the exemption for fair use of copyrighted works.

Free Republic
Browse · Search
General/Chat
Topics · Post Article

FreeRepublic, LLC, PO BOX 9771, FRESNO, CA 93794
FreeRepublic.com is powered by software copyright 2000-2008 John Robinson