querybuilder's profile picture. Writer and researcher, interests include politics, economics and finance, history, mathematics, good music and books, and the Red Sox. Alumnus UVM, AU.

Jeff Clark

@querybuilder

Writer and researcher, interests include politics, economics and finance, history, mathematics, good music and books, and the Red Sox. Alumnus UVM, AU.

Jeff Clark reposted

The integral symbol ∫ introduced in 1675 was based on the ſ (long S) character, and was chosen because Leibniz thought of it as an ∞ sum

fermatslibrary's tweet image. The integral symbol ∫  introduced in 1675 was based on the ſ (long S) character, and was chosen because Leibniz thought of it as an ∞ sum

Jeff Clark reposted

The following formula yields the correct decimal digits of π to 42 billion digits

fermatslibrary's tweet image. The following formula yields the correct decimal digits of π  to 42 billion digits

Jeff Clark reposted

How Long a Plane Would Take to Reach Each Planet?


Jeff Clark reposted

If you divide 1 by 998,001 you get all three-digit numbers from 000 to 999 in order, except for 998.

abakcus's tweet image. If you divide 1 by 998,001 you get all three-digit numbers from 000 to 999 in order, except for 998.

Jeff Clark reposted

Farthest ever landing. Titan landing. It's a shame many people don't know we landed on a moon of Saturn.


Jeff Clark reposted

What an embarrassment. If you wanted evidence that campuses are now unserious places, note the nationwide effort to make commencements entertaining by featuring entertainers as speakers rather than scholars or intellectually relevant people.

Kermit the Frog will delivery his first commencement address in nearly 30 years at the University of Maryland on Thursday. nbcnews.com/news/us-news/u…



Jeff Clark reposted

Extremely detailed view of Mars (actual sound of Mars)


Jeff Clark reposted

how the Solar System travels around the center of the galaxy, taking 225 million to 250 million years for a full orbit.


Jeff Clark reposted

A one-line proof of the infinitude of primes


Jeff Clark reposted

It was only 287 years ago that Euler presented in his textbooks the exact formula for the volume of a sphere

fermatslibrary's tweet image. It was only 287 years ago that Euler presented in his textbooks the exact formula for the volume of a sphere

Jeff Clark reposted

This is the only solution to a² + b³ = c⁷ in positive integers

fermatslibrary's tweet image. This is the only solution to a² + b³ = c⁷ in positive integers

Jeff Clark reposted

Clearest image ever taken of Venus. 💙🪴

MAstronomers's tweet image. Clearest image ever taken of Venus. 💙🪴

Jeff Clark reposted

Here's a list for the number of primes less than powers of 10: 10 4 10² 25 10³ 168 10⁴ 1,229 10⁵ 9,592 10⁶ 78,498 10⁷ 664,579 10⁸ 5,761,455 10⁹ 50,847,534 10¹⁰ 455,052,511


Jeff Clark reposted

Beauty of Numbers

Rainmaker1973's tweet image. Beauty of Numbers

Jeff Clark reposted

Top of planet earth, Mount Everest from a commercial plane.

MAstronomers's tweet image. Top of planet earth, Mount Everest from a commercial plane.

Jeff Clark reposted

From John Wallis, 1656

fermatslibrary's tweet image. From John Wallis, 1656

Jeff Clark reposted

Ice Mountains of Pluto as seen from New Horizon spacecraft.

From Curiosity

Jeff Clark reposted

The Clearest image of Mercury

MAstronomers's tweet image. The Clearest image of Mercury

Jeff Clark reposted

"What’s happening in Canadian politics is not happening in a vacuum. It is a symptom of a much broader phenomenon. Call it the great crack-up of the old consensus. The old consensus held that immigration was an absolute good, with multiculturalism the end goal. Arguments…


Jeff Clark reposted

The Brachistochrone problem was solved by Bernoulli and is the birth of calculus of variations. en.wikipedia.org/wiki/Calculus_… en.wikipedia.org/wiki/Brachisto…


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