search results matching tag: infrared

» channel: learn

go advanced with your query
Search took 0.000 seconds

    Videos (79)     Sift Talk (1)     Blogs (7)     Comments (110)   

The Vitamin D Paradox in COVID-19

eric3579 says...

If you have been under the assumption that raising Vit D levels by supplementing will help with covid outcomes, you should watch this. TLDW it seems it has nothing to do with vit D levels , but everything to do with another spectrum of sunlight (near-infrared). *promote

BSR (Member Profile)

Invisible London

Invisible London

cloudballoon says...

Infrared is possibly race-blind? Looks to me under infrared light, Caucasian to East Indian to African skin-tones have very similar shade of ghostly white with a hint of green. That's pretty cool.

Seeing through fog

oritteropo says...

The Cadillac system, offered between 2000 and 2004, used a passive infrared camera for night vision, which was displayed on the windscreen using a heads up display. Actually a whole list of expensive cars have had this option available since Cadillac and Raytheon introduced it.

I don't think it would necessarily work well in heavy fog, which is what this new research is targeting.

newtboy said:

Cool, but I recall Cadillac offering a similar system years ago that superimposed objects on the windshield. It certainly seemed better than human vision on the commercials, but I've never seen it in action.

Flippy the Burger Flipping Robot at CaliBurger Pasadena

Esoog says...

Not as advanced as I was hoping. But I'm sure they will get there. He said it cooks now based on time. I'd rather it maybe use infrared to detect temps. Or insert a temp probe. I'd like to see it do the toppings. I think that is where most mistakes are made. Cooked to order doesn't always come out as ordered.

The Most Costly Joke in History

transmorpher says...

I have not agreed that my position is wrong on the performance and capability designs of the F-35 and modern air combat. Please read the rest of my post above.... I'm still saying that dogfights have ended with WW1. I've never said we don't need ANY dog fighting capabilities. I'm saying that it's never the primary design idea of a modern fighter jet. You still have a cannon for back up. Just like soldiers have a side arm and a knife. Just in case you do get caught with your pants down or the main weapon fails at a critical moment.

I have agreed on the waste of money aspect of course. I'll also agree that if test goals are being downsized to accommodate flaws, then that's just terrible. If it's not able to perform to it's design then it's useless.

The F-4 != F-35. I can see why people draw parallels. But that only works if you ignore that absolutely everything on the planes is different, the adversaries are different, and stealth is requirement for survivability. You don't use stealth planes in the way you use an non stealth plane. Have you ever heard of a sniper wearing a ghillie suit run across the open battlefield with a sword or pistol? There were so many tactical mistakes in Vietnam as well. The conditions in which that article talks about are also different. Those planes were flying low and slow for a bombing run. Because they didn't have laser, gps guided bombs, infrared fire and forget air to ground missiles or cruise missiles back in those days. You don't get fog at 40,000 feet. They had to fly that low to get a visual identification of their bombing target. That does not happen anymore either. You scream past at mach 1 above the clouds and the bomb hits where it was programmed to hit. Also the phantoms missiles were unrelaiable. That hasn't been the case since the 80s. And their training was poor. None of that is true these days, and has not been true since the 80s either. That's why every single fighter plane apart from the F-16 (which is made mostly as an export product anyway) has been created to fight at long range primarily. The F-15 which is the main air superiority fighter for the US, is heavy and has a worse maneuverability than any Russian plane. But it's still the most feared plane, with no loses in combat. The article you linked even says that. So it's basically contradicting itself. At the start it says, F-4's lost because they couldn't maneuver, and ends with therefore the US made the F-15 which has worse maneuverability than the Russian planes lol.



Edit: Cracked.com doesn't count as a reputable source for anything, including basic sentences, spelling and punctuation.

Edit2: Here is an article from an actual F-35 pilot that says the F-35 dog fights better than a F-16 since they keep tuning the fly-by-wire parameters. http://theaviationist.com/2016/03/01/heres-what-ive-learned-so-far-dogfighting-in-the-f-35-a-jsf-pilot-first-hand-account/

So even if it came to a dogfighting encounter, the F-35 is still the best plane in the US arsenal for dogfighting.

newtboy said:

Well there YOU go.
I'm not sure if you're aware, but WW1 ended well over 25 years ago, so your repeated contention that 'dogfights ended in ww1' so we don't need any dogfighting capabilities is clearly 100% wrong. I hope you'll stop repeating it now, as it's ridiculously annoying to have a conversation with someone who agrees that their position is wrong, but continues to stand on that position nevertheless.
http://www.realcleardefense.com/articles/2015/07/06/usaf_promised_the_f-4_and_f-35_would_never_dogfight_108180.html
and (the last one mentioned here is INSANE)
http://www.cracked.com/article_19396_5-aerial-battles-that-put-top-gun-to-shame.html

I hope you've also arrived at the position now that, if they have to change the testing parameters/minimum acceptable requirements to turn massive fails into 'success' that it fails miserably and can't possibly ever be prepared for real deployment and has become nothing but a massively expensive, poorly preforming jobs program.

Racist Sinks

jmd says...

We had infrared activated sinks at my work. Always thought they worked fine accept for the occasions where they got stuck always on. Now I know it was worse then that, and glad they replaced them with handles.

Racist Sinks

artician says...

Not that I'm trying to excuse that sinks bigotry and disregard for human rights, but...
This is a well-known flaw. The infrared sensor on these things needs a bright surface to reflect it back. They also don't work often/well if you're wearing dark clothes, like a black shirt.
But still... fuck that sink.

infrared (Member Profile)

Moneymaking Training Course

siftbot says...

infrared has been seconded for banination by eric3579. This account will now be disabled. If you would like to appeal this banination, infrared, you may contact the administrators.

Moneymaking Training Course

siftbot says...

infrared has been nominated for banination by newtboy. This may be due to abuse or violations of the posting guidelines. If this nomination is seconded, the account will be permanently disabled.

Colorblind Dad Experiences True Color for the First Time

lucky760 (Member Profile)

lucky760 (Member Profile)



Send this Article to a Friend



Separate multiple emails with a comma (,); limit 5 recipients






Your email has been sent successfully!

Manage this Video in Your Playlists

Beggar's Canyon