dhampyresa: (SCIENCE SMASH)
[personal profile] dhampyresa
I found two 2-cent coins today and thus you get 2 thoughts.

1. The sound barrier is so called because, among other things, attempting to cross it led to a lot of plane crashes. At high enough speeds (Mach 0.8+), controls reverse: up becomes down and down becomes up, due to the air pressure becoming strong enough to twist the wings based on aileron (wing flaps) position.

2. I recently watched your city is full of fake buildings, here's why on youtube and it"s true! My city is is full of fake buildings. Three of them, at least. The video shows the ones at the following adresses: 29 rue Quincampoix, 27 rue Bergère and 145 rue Lafayette. It's wild to me that I never noticed. I've been rue Quincampoix! Recently, even!

(no subject)

Date: 2022-10-14 10:44 pm (UTC)
slashmarks: (Default)
From: [personal profile] slashmarks
That video was cool, thanks for the link!

(no subject)

Date: 2022-10-14 11:43 pm (UTC)
isis: (squid etching)
From: [personal profile] isis
The information in the video was interesting, but ugh, I really hated it. Like - it's a fake video, because it's got all this unimportant dressing around the interesting kernel of information. I would have enjoyed a 3-minute presentation on the substance, but I ended up skipping around to get at the actual meat!

(no subject)

Date: 2022-10-15 03:30 am (UTC)
china_shop: text icon that says "age shall not weary her, nor custom stale her infinite squee" (age shall not weary her)
From: [personal profile] china_shop
I just read #1 out to my partner (because wow, amazing!), and he got me to google pictures of planes crossing the sound barrier. Have you seen? Now I'm all O.O!!!! twice over.

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