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Day twenty-four, night – minus one;)

From the online store: “Your robot vacuum is leaving us negative reviews and asking to be picked up”

The uncle is very cool. Awesome ragtime performance

https://www.youtube.com/watch?v=c4IJcjwGogg

Today I am presenting in Kyiv (remotely).

I was there exactly six years ago, on March 25, 2013. It snowed. There was an emergency. I didn’t get to see the city because there was no means of transportation – everything was out of order 🙂 APCs helped trolleys not to slide down the hill backwards and block the passage for the few SUVs. The ‘U’ in a triangle on the APC was amusing in itself)

It turns out that the reason why most Unified State Exams (USE) last not 4 hours, but 3:55, is because, according to SanPiN 2.4.5.2409-08, if a child is in school for more than 4 hours, the school is obliged to provide a hot meal.

An intriguing little life hack for calculating percentages:

X% of Y = Y% of X

So, for example, if you need to calculate 4% of 75 mentally, just swap the numbers and calculate 75% of 4, which is much easier.

Understandably, this is somewhat obvious from a mathematical point of view (100 in the denominator moves to the second factor), but nobody has been doing this in mental calculations, right?

Masha went to New York today to scan her leg with this device. Now we are waiting for the shoes to be made

https://youtu.be/CNd8ttvFT0k

On the topic of microbiologists moving to the states 😉

Next time you find yourself hating traffic jams, remember this photo of a 50-lane road in China that narrows down to four lanes.

Near Zhuozhou, Baoding, Hebei, China

https://goo.gl/maps/69C8PDKk1nk