I need a geologist to explain this one. Moissanite has a Mohs hardness of 9.5. I guess it is easier to scratch than a diamond, but the scratability should be indistinguishable between the two for all practical purposes.
Not a geologist but Mohs hardness is an ordinal scale so the distance between 10 and 9 isn't well-defined. The numbers are defined as being specific minerals.
Diamond (10) is 4x as hard as corundum (9) which is 2x as hard as topaz (8).
While (human) vision is 3 colors, reviews of visual arts obviously can't just describe the colors of the thing. It also has shape, depth, style, etc.
Food reviewers don't note the levels of salt, sour, etc. They describe flavors and textures and parings.
But also, I don't buy that taste is just the composition of 5 components. This sounds like a reference to that diagram of the tongue we've all seen. It's as complex as scent is. There's no way you can define the taste of cinnamon by specifying some sort of 5-tuple.
I believe he is correct. The misunderstanding is from the old chart that showed certain tastes were only detected by certain parts of the tongue.
It’s still true that we can only taste salty, sweet, sour, bitter, and umami. All other flavor complexities come from scent simultaneously giving us information. It’s why everything tastes so boring when you have a head cold.
Think about this, suppose you're on a Zoom call and you want a person on the other side of the call to match a color that you're seeing. You can say "make it more blue", "make it brighter", "shinier", etc.
You can get pretty close to what you're seeing this way.
This isn't a food storage thing, but I think I see where you got that idea from the photos in the link. He's showing the types of paperboard that work with his system. Old cereal boxes, coffee filter boxes, etc.
And requires me to remember to get up and hang it before a scheduled meeting. Or not hang it when someone calls me and a meeting erupts. And I need to remember to take it down after each call. (If I don’t, then it’s just up all the time and might be taken as seriously as a Prop 65 Warning.)
And I'm sure you've set up all the systems that make sure the complicated system is actually working and not dead weight or doing something unintended.
obviously you need a remote motor that spins the sign to "do not disturb" when the meeting starts and then back around when it's over. and a sensor to verify it's in the correct orientation.
so you get the simplicity of the sign with the automation desired by the OP.
A webcam in the corridor that shows your office door from the outside, machine vision reads the image to know which orientation the sign is in. If a meeting begins and the sign is wrong, a little LED on the desk starts flashing red.
My brother and I bought the same album back in 1994. Stone Temple Pilots—Purple.
I had it on CD, he bought the tape.
The CD sounded (obviously) so much better than his tape. But a little while later I made my own tape copy of the CD, and my copy sounded really close to the CD! Way better than his store-bought copy.
Those bastards didn't even have the decency to use Type II cassettes for the released album.
A Type II (or even better, Type IV-Metal) tape could sound pretty damn good. Still sucked to have to rewind or fast-forward, though.
(Also, Dolby NR was terrible. I'd rather have the hiss than have the muted highs)
Yeah mass-produced tapes were pretty bad but if you copied an album to cassette using a good tape and decent tape deck they could sound pretty good. Good enough for a Walkman or playing in the car anyway.
One of the all-time great iconic ads. The photo of the guy in the chair was available as a poster and graced many a young man's bedroom or dorm room wall.
I still have cassette tapes encoded with dbx rather than Dolby and the former's sound quality is much better than the latter. I'd recorded them on Technics decks, which is why I still keep an old deck of that brand for playback and ripping as the bias values are identical.
https://youtu.be/TMoz3gSXBcY