Free Republic
Browse · Search
Bloggers & Personal
Topics · Post Article

Skip to comments.

Thermal Camera Review: These Heat Seekers Reveal an Unseen World
Wall Street Journal ^ | Sept. 1, 2015 | Jon Keegan

Posted on 09/02/2015 8:54:15 AM PDT by Dr. Prepper

Heat-vision cameras have been used widely in many industries for decades: Soldiers find targets through heat-vision rifle sights, police mount them on helicopters to search for people on the ground and contractors use the sensors to look for cold air seeping into homes. Now you can buy a simple smartphone attachment to reveal the widely varying temperatures of the people and things around you.

Maybe you’re not up for hunting Arnold Schwarzenegger, like the heat-seeing alien hunter in the classic 1987 film “Predator.” There are many practical home uses for the latest thermal camera accessories from Flir and Seek, too: finding your missing cat hiding in the dark under the porch, diagnosing a blocked pipe in your bathroom or seeing how much propane is left in your gas grill’s tank. These cameras also allow you to peer into a previously invisible thermal landscape, revealing surprising views of the world around you.

Much like any super power, there are limitations to this extrasensory ability. Glass is good at letting through visible light, but filters out the kind of infrared radiation we know as heat. What makes them good for windows makes them nearly opaque to heat-sensing cameras. These thermal cameras will show the temperature of the glass surface, but if someone is standing just behind the window (and not touching it), that person will remain largely invisible—though you may see your heat reflected in the glass back at you. In fact, thermal cameras’ lenses aren’t made from regular glass, but require special materials such as germanium, which allow this range of infrared light to pass.

(Excerpt) Read more at wsj.com ...


TOPICS: Business/Economy; Computers/Internet; Education; Reference
KEYWORDS: banglist; flir; guncontrol; gunowners; prep; prepper; tech; technology; thermal
Navigation: use the links below to view more comments.
first 1-2021-34 next last
Interesting article from the WSJ.

By chance it's not locked down so you can peruse it at your leisure.

1 posted on 09/02/2015 8:54:15 AM PDT by Dr. Prepper
[ Post Reply | Private Reply | View Replies]

To: Dr. Prepper

I have FLIR One. It’s awesome.


2 posted on 09/02/2015 9:14:04 AM PDT by Rio (Proud resident of the State of Jefferson)
[ Post Reply | Private Reply | To 1 | View Replies]

To: Dr. Prepper

I have a Nikon D-50 with the IR filter removed from the sensor. It takes cool faux-color daytime pics, night pics with a light source (to focus), but one thing it can do is tell if a car has had a section repainted... It may look normal in our spectrum, but you can’t fool IR :o)


3 posted on 09/02/2015 9:15:18 AM PDT by glock rocks (Mindlessly hijacking threads since 2001)
[ Post Reply | Private Reply | To 1 | View Replies]

To: Rio

Unfortunately, we may need such devices in the near future.


4 posted on 09/02/2015 9:31:31 AM PDT by Dr. Prepper (Dig a well BEFORE you are thirsty - Chinese Proverb)
[ Post Reply | Private Reply | To 2 | View Replies]

To: Dr. Prepper

Someday this (thermal infrared heat detectors), combined with electrical activity detectors, may be used to really get into how the brain works, possibly even one day to ‘read minds’. Blood flow to various areas of the brain registers as heat, while electrical activity to parts of the brain can similarly be detected. Hook a subject up to both simultaneously and observe and map the regions of the brain where the blood flow and electrical activity are, as he/she responds to different things. Map the correlation between blood, electricity, and thoughts, and you might be able to use the detection technology alone to know what a person is thinking. In other words, pair it together.


5 posted on 09/02/2015 9:48:46 AM PDT by ETL (ALL (most?) of the Obama-commie connections at my FR Home page: http://www.freerepublic.com/~etl/)
[ Post Reply | Private Reply | To 1 | View Replies]

To: ETL

The research into that is surprisingly advanced. I was watching a show where a subject viewed photos in one room while his brain generated (via electrical impulse) correlating words on a computer screen in another.

He viewed a picture of a Hawaiian beach scene and his brain generated words like sand, beach, hotel, palms


6 posted on 09/02/2015 9:58:43 AM PDT by cripplecreek (Pride goes before destruction, and a haughty spirit before a fall.)
[ Post Reply | Private Reply | To 5 | View Replies]

To: ETL

So should I make sure my tin foil hat is glass lined?


7 posted on 09/02/2015 10:02:33 AM PDT by radmanptn
[ Post Reply | Private Reply | To 5 | View Replies]

To: Dr. Prepper; Lazamataz

Laz uses one to find the “hot” women.


8 posted on 09/02/2015 10:06:16 AM PDT by laker_dad
[ Post Reply | Private Reply | To 1 | View Replies]

To: Rio

Which application(s) are you using it for, mostly? (If you don’t mind sharing :) Thanks.


9 posted on 09/02/2015 10:07:15 AM PDT by Jane Long ("And when thou saidst, Seek ye my face; my heart said unto thee, Thy face, LORD, will I seek")
[ Post Reply | Private Reply | To 2 | View Replies]

To: radmanptn

Testing the effects of transcranial random noise stimulation on
the prefrontal cortex. The orange plates are near-infrared spectroscopy
devices, using infrared light to measure blood-flow changes.
(Credit: Albert Snowball et al./Current Biology)

http://www.kurzweilai.net/electrical-brain-stimulation-helps-people-learn-math-faster


10 posted on 09/02/2015 10:15:01 AM PDT by ETL (ALL (most?) of the Obama-commie connections at my FR Home page: http://www.freerepublic.com/~etl/)
[ Post Reply | Private Reply | To 7 | View Replies]

To: radmanptn
Mapping the Brain

By Lauren S. Aguirre
Posted Oct 4, 2012
NOVA scienceNOW

There are many ways to look inside the brain without cutting it open, and each imaging technique has its pros and cons. The Laboratory of Neuro Imaging at UCLA has created a human brain atlas using data collected by the International Consortium for Brain Mapping from thousands of people.

The goal is to understand the relationship between brain anatomy and function, to see the complex connections between different brain regions, and to be able to tell the difference between normal and abnormal variability. In addition to building a fundamental understanding of the brain, this information can help in planning surgery, developing new medications, or monitoring and treating neurological disorders.

 photo Brain mapping 01_zpsebg1l0ea.jpg

Launch Interactive:
http://www.pbs.org/wgbh/nova/body/mapping-the-brain.html

11 posted on 09/02/2015 10:23:21 AM PDT by ETL (ALL (most?) of the Obama-commie connections at my FR Home page: http://www.freerepublic.com/~etl/)
[ Post Reply | Private Reply | To 7 | View Replies]

To: cripplecreek
Just a matter of time...

Some minds of course would likely be easier to read than others. :)

“It may be possible to 'read' a person’s memories just by looking at brain activity, according to new research. Scientists show that our memories are recorded in regular patterns, a finding which challenges current scientific thinking.”

http://www.sciencedaily.com/releases/2009/03/090312114754.htm

12 posted on 09/02/2015 10:31:14 AM PDT by ETL (ALL (most?) of the Obama-commie connections at my FR Home page: http://www.freerepublic.com/~etl/)
[ Post Reply | Private Reply | To 6 | View Replies]

To: cripplecreek; radmanptn
Scan a brain, read a mind?
By Elizabeth Landau, CNN
April 12, 2014

What we write online may be intercepted, filtered and publicized, but we’d like to think that the thoughts and images in our heads are totally private.

For better or worse, science may change that. Over the last few years, researchers have made significant strides in decoding our thoughts based on brain activity.

How this would work is still at the very early stages of development. But, given what we can already do, it’s not a huge leap to imagine that one day we could read the words of people’s internal streams of thought, said Jack Gallant, a prominent neuroscientist at the University of California, Berkeley.

“I think decoding the little person in your brain — we could do that today if we had a good enough method of measuring your brain activity,” Gallant said.

Gallant predicts that in 50 years, thought-reading will be commonplace. We’ll be wearing “Google Hats,” he envisions, that are continuously decoding our thoughts.

Such a wonder-cap might transmit and even translate our thoughts into foreign languages.

But Dr. Josef Parvizi, a Stanford University neurologist who also studies the relationship between brain and mind, is much more skeptical. ...” (continues at link)

http://www.cnn.com/2014/04/12/health/brain-mind-reading/index.html

13 posted on 09/02/2015 10:35:18 AM PDT by ETL (ALL (most?) of the Obama-commie connections at my FR Home page: http://www.freerepublic.com/~etl/)
[ Post Reply | Private Reply | To 6 | View Replies]

To: cripplecreek

They can record your dreams and put it on a computer generated video. Blurry, but hey.


14 posted on 09/02/2015 10:52:31 AM PDT by huldah1776
[ Post Reply | Private Reply | To 6 | View Replies]

To: Dr. Prepper

I’ve been looking at some of the products offered by a company called Torrey Pines Logic. Reviews are pretty solid and the prices are edging toward the acceptable range. The rigs they sell that look like small holosights are particularly interesting.


15 posted on 09/02/2015 11:02:34 AM PDT by Charles Martel (Endeavor to persevere...)
[ Post Reply | Private Reply | To 1 | View Replies]

To: huldah1776

Would be interesting to ‘see’ what a blind-from-birth person dreams. If they never saw anything in their lives, what on earth goes on when they dream? How do they ‘visualize’ the world in their minds?


16 posted on 09/02/2015 11:11:05 AM PDT by ETL (ALL (most?) of the Obama-commie connections at my FR Home page: http://www.freerepublic.com/~etl/)
[ Post Reply | Private Reply | To 14 | View Replies]

To: ETL

Sound, smell, touch. I recommended an art gallery for the blind but the art director kind of sneered at me. I love texture and it would be easy to do. Heat for red, cold for blue, etc.


17 posted on 09/02/2015 11:16:40 AM PDT by huldah1776
[ Post Reply | Private Reply | To 16 | View Replies]

To: huldah1776

But surely their brain generates images of some sort in their minds while thinking and sleeping.


18 posted on 09/02/2015 11:23:38 AM PDT by ETL (ALL (most?) of the Obama-commie connections at my FR Home page: http://www.freerepublic.com/~etl/)
[ Post Reply | Private Reply | To 17 | View Replies]

To: Dr. Prepper

They’ve been using the larger sized FLIR cameras on the Ghost Hunters tv show for years.

How well do snakes show up?


19 posted on 09/02/2015 11:41:14 AM PDT by bgill ( CDC site, "we still do not know exactly how people are infected with Ebola")
[ Post Reply | Private Reply | To 1 | View Replies]

To: ETL

here’s 2 videos for ya. A blind man answering your question and the images they recorded during sleep..

https://www.youtube.com/watch?v=XpUW9pm9wxs

http://gizmodo.com/5843117/scientists-reconstruct-video-clips-from-brain-activity


20 posted on 09/02/2015 12:23:42 PM PDT by huldah1776
[ Post Reply | Private Reply | To 18 | View Replies]


Navigation: use the links below to view more comments.
first 1-2021-34 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
Bloggers & Personal
Topics · Post Article

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