The Connextras follow-up

That's assuming his visibility is through removing collisions with photons. (How would that affect virtual photons, like the ones between every atomic nucleus and its electrons?) If the invisibility is through absorbing (or detecting or seeing) and projecting - with an info processing step in the middle - then no problemo!

Stephen Gillie

You look good in long hair.

Arthur Robillard

i suspect, that lighters in the winter just generate less fumes to work with/fluid has less viscosity to move up the wick.

My parents collected a lot of these lanterns back when they were pretty easy to find in antique stores. If there's a particular type you might want to aquire, hit me up. Mom has been considering selling some over the last few years.

Kadah

If you're just combusting fuel for light or heat, then adding heat to the fuel (or air) before combustion means you'll end up with more heat from the combustion - an ol' stoner tip is that lighters in winter barely work, but work much better after being in a pocket, and close to body temperature. It's because it takes a small amount of energy to start the combustion of each molecule of fuel with oxidizing air. If the molecule is cold (energy deficient), then it's going to take more energy to get over that "hill" to begin the combustion.

Stephen Gillie

Low production cost probably has more to do with its continuing popularity than fuel flexibility. Alec mentions that there are better lanterns for multiple fuels.

Stephen Gillie

Rockefeller didn't, but GM did - they found 3 substances that could remove engine knock: water, ethanol, and tetra-ethyl lead. They could only patent the 3rd one so they invented leaded gasoline. The lead molecule is basically 4 ethanol molecules attached to a lead atom, so it basically decomposes to ethanol during ignition. And so GM made money off every gallon sold until the 1990s.

Stephen Gillie

I’d echo this (having grown my hair out in the past). If you want to have long hair, what you want done next is “a little tidy up” by a hairdresser who understands that you’re trying to grow it out. Not a haircut as such. Ie tidy up any rough ends, and make it a bit easier to tie back. Once your hair gets down below your shoulders it all gets much easier, and you’re really close now. Just saying. Ewen

Ewen McNeill

i'm diggin the hair. not sure what final length you're looking to achieve, but take it from a dude who has grown his hair out 4 times... you're nearly past what i call 'the awkward phase.' keep it rockin.

NeonPreservation

I was also under the impression that the wick raise/lower knob was an air shutoff. I really enjoy learning from your videos, thank you for doing what you do

Chris Hutt

Fantástico

They usually don't get hot enough to burn your hand when carrying them, and if they do you can turn it down. They also have to tip pretty far to spill, so normal walking is not a problem.

Thor Syvertsen

Haddn't even thought of half the problems the comments had come up with... although seeing the IR... I'm now wondering how people carrying a lit lantern wouldn't spill fuel everywhere, and also cook their hands with the exhaust. I guess thats why candles were a thing to transport flamable light when moving?

AmpSmashed Music

If you have the FLIR One IR camera, there's actually a setting to adjust the parallax. If you click the little plus at the bottom of the image window, you can adjust camera alignment.

Anonymous

Actually, that's not what surprised me about it not being visible. I expected the IR camera to not see it, but I thought surely the visible camera would composite a bright flame onto the image clearly! There's a surprising amount of detail you can see, such as the Dietz logos on the glass, but the flame is practically invisible. Makes me curious about how that compositing process works.

Technology Connections

Here's a little extra, The invisible man is blind. His retina can't stop the light so he doesn't get the information. I wonder if HG Wells guessed that because he did say that the last thing to become invisible was the back of his eyes. It wouldn't have helped though as the lens was already invisible and therefore not focused.

Jim Hewlett

I always find it somewhat surprising that Rockefeller didn't become the richest man in the world by selling petrol ('gas' in the US), but by selling kerosene. His genius was to realise that people wanted a constant quality fuel that wouldn't be too sooty or explode, so he made sure the refineries cranked out a standard consistency of kerosene - hence the name. The lighter fraction either went down the drain or ended up in pharmacies - at least until Mrs Benz decided to go for a nice little drive to visit her family in Pforzheim.

Mike Richards

You may have considered it too obvious, but I wonder if all of your audience realise that glass stops infra-red, so you can't see the flame, and the glass only shows up by being hot on the outside of the glass through conduction.

Jim Hewlett

You can absolutely rock the longer hair. Have them tame it back to something neatly shaggy (and maybe less product).

Joe Turner

The hair might be a lot but I approve wholeheartedly

My hair is about the same, thanks to COVID, so… 🤷‍♂️ that was some high quality hot air! 😸

Andy K

The hair is approved! 😆

Bill R Tomison

I wonder if the flexibility of fuels in the dietz lantern is why it's so popular in some parts of the world. I imagine if you can't get access to portable electric lighting, high quality (or any quality) kerosene might also be unavailable.

triggthediscovery