Six STEM Tweets

Six tweets that celebrate engineering and all things STEM.

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#6 🤯 

This is issue #62. Here’s some fun facts about #62:

• The element with atomic number 62 is Samarium, symbol Sm. It is a moderately hard silvery metal that slowly oxidizes in air.

  • samarium was named after the mineral samarskite from which it was isolated. The mineral itself was named after a Russian mine official, Colonel Vassili Samarsky-Bykhovets, who thus became the first person to have a chemical element named after him, though the name was indirect.

  • An important use of samarium is samarium–cobalt magnets, which are nominally SmCo₅ or Sm₂Co₁₇.^[102] They have high permanent magnetization, about 10,000 times that of iron and second only to neodymium magnets.

• 62 is the international country calling code for Indonesia

• 62 is the smallest number that is the sum of three distinct positive squares in two (or more) ways, 1 2 + 5 2 + 6 2 = 2 2 + 3 2 + 7 2

• 62 is a semi-prime i.e. a product of 2 primes - 2 × 31

• The only number whose cube in base 10 (238328) consists of 3 digits each occurring 2 times

• The 20th & 21st, 72nd & 73rd, 75th & 76th digits of pi

And you thought 62 was just another number 😃 

That’s it for this issue.

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Let’s all celebrate science and engineering and curiosity.

Best wishes,

Harshal