Recent comments in /f/askscience

HuntedWolf t1_j1hzdpb wrote

Reply to comment by [deleted] in What specifically about ginger/menthol/wasabi causes one's sinuses to open? by Bartendiesthrowaway

It’s not incorrect, perhaps you’ve misread his comment. He’s saying that most “wasabi” you see is actually just horseradish, unless you’re in Japan. For example I live in the UK and many shops sell packets of sushi with “wasabi” alongside. It’s not wasabi that’s been shipped from Japan, it’s horseradish coloured green.

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LaughingBeer t1_j1hz1mu wrote

Reply to comment by [deleted] in What specifically about ginger/menthol/wasabi causes one's sinuses to open? by Bartendiesthrowaway

They are talking about when you buy it in a store or get it at a restaurant, not it's botanical qualities. The container you buy it in or the menu you see it on will call it wasabi, but it will actually be colored horseradish. They do this because the taste is pretty similar and real wasabi is harder to come by as its harder to grow in great quantities.

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paulHarkonen t1_j1hxkvz wrote

Reply to comment by genericTerry in How does the non-CO2 emissions of an external combustion engine compare to an internal combustion engine? by Past_Self_4845

Not to anywhere close to the same degree. Excess fuel consumption is way more costly than heating up a little bit of extra air.

Obviously you want to run as close to stoichiometric as possible, but since we are only human, running a bit lean is less expensive than running a bit rich (all other factors being equal).

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