Oh Chemistree, oh chemistree,
How lovely are your beakers.
You wish your chem lab was as cool as mine.
Der Tannenbeaker ist sehr schön.
You deserve the A+, you little shit.
are those Spy Kids 3D glasses
Known as the Irish Elk
Megaloceros was a genus of deer found throughout Eurasia from the late Pliocene through the Late Pleistocene [3 million to 8,000 years ago]. They were important herbivores during the Ice Ages. [ Wikipedia ]
The [so-called] Irish Elk was a species of Megaloceros and one of the largest deer that ever lived. Its range extended across Eurasia, from Ireland to east of Lake Baikal, during the Late Pleistocene. The latest known remains of the species have been carbon dated to about 7,700 years ago in Siberia.
Although most skeletons have been found in Irish bogs, the animal was not exclusively Irish.
It was also not closely related to either of the living species currently called elk (the European elk, known in North America as the moose, and the North American elk, or wapiti); for this reason, the name “Giant Deer” is used in some publications. [Wikipedia]
Animalia > Chordata > Mammalia > Artiodactyla > Cervidae >
Except for the print at the bottom, all images are from Wikipedia.
SECOND from bottom
Megaloceros with line of dots, from the 17,300-year-old cave art at Lascaux [France]. Read more about the paleolithic art at Lascaux …
Behold, the fossil elk [source of image - probably downloaded from an online library’s scanned set of 19th century illustrations]
A harvest mouse hangs out on a dandelion.
Harvest mice are excellent foragers, using their curled, prehensile tail to anchor themselves when climbing.
Captured by photographer Matt Binstead.
Nelson Mandela dies at 95
Former South African President Nelson Mandela has died, President Jacob Zuma announced Thursday.
See more at Breaking News.
Photo: Mandela takes the oath on May 10, 1994, during his inauguration in Pretoria as the country’s first black president. “The time for the healing of the wounds has come,” Mandela said. “The moment to bridge the chasms that divide us has come. The time to build is upon us.” (Walter Dhladhla / AFP - Getty Images)
The world lost a great man today.
I had to make a comic about rocks for my oceanography class
The Women Who Mapped the Universe And Still Couldn’t Get Any Respect
In 1881, Edward Charles Pickering, director of the Harvard Observatory, had a problem: the volume of data coming into his observatory was exceeding his staff’s ability to analyze it. He also had doubts about his staff’s competence–especially that of his assistant, who Pickering dubbed inefficient at cataloging. So he did what any scientist of the latter 19th century would have done: he fired his male assistant and replaced him with his maid, Williamina Fleming. Fleming proved so adept at computing and copying that she would work at Harvard for 34 years–eventually managing a large staff of assistants.
So began an era in Harvard Observatory history where women—more than 80 during Pickering’s tenure, from 1877 to his death in 1919— worked for the director, computing and cataloging data. Some of these women would produce significant work on their own; some would even earn a certain level of fame among followers of female scientists. But the majority are remembered not individually but collectively, by the moniker Pickering’s Harem.
Our unsung heros that contribute just as much to science as the PI. The lab assistant, the cataloguer, the person who takes data. Many times they contribute to the IP, help work through troubleshooting and maintaining lab equipment. It takes a village to make significant breakthroughs in science.
(1) President Abraham Lincoln, who had depression
(2) Writer Virginia Woolf, who had bipolar disorder
(3) Artist Vincent Van Gogh, who had bipolar disorder
(4) Writer Sylvia Plath, who had depression
(5) Mathematician John Nash (from A Brilliant Mind), who had schizophrenia
Inspired by this post
Pattern Playing - plus a little mathart.
Is there a rule for how many pentagons at each step? For total number of pentagons after each step?
Is there a rule for exposed edges at each step? Total?
Is there a rule for number of new vertices at each step? Total?
Is there a rule for the number of rhombi at each step?
Is there a last step to the pattern?
Will the pentagons enclose regular polygons next to the original yellow pentagon?
Mathigon is an awesome website where you can learn awesome math for free, covering topics like fractals, infinity, game theory, statistics, physics, etc.
… Y’see, now, y’see, I’m looking at this, thinking, squares fit together better than circles, so, say, if you wanted a box of donuts, a full box, you could probably fit more square donuts in than circle donuts if the circumference of the circle touched the each of the corners of the square donut.
So you might end up with more donuts.
But then I also think… Does the square or round donut have a greater donut volume? Is the number of donuts better than the entire donut mass as a whole?
A round donut with radius R1 occupies the same space as a square donut with side 2R1. If the center circle of a round donut has a radius R2 and the hole of a square donut has a side 2R2, then the area of a round donut is πR12 - πr22. The area of a square donut would be then 4R12 - 4R22. This doesn’t say much, but in general and throwing numbers, a full box of square donuts has more donut per donut than a full box of round donuts.
The interesting thing is knowing exactly how much more donut per donut we have. Assuming first a small center hole (R2 = R1/4) and replacing in the proper expressions, we have a 27,6% more donut in the square one (Round: 15πR12/16 ≃ 2,94R12, square: 15R12/4 = 3,75R12). Now, assuming a large center hole (R2 = 3R1/4) we have a 27,7% more donut in the square one (Round: 7πR12/16 ≃ 1,37R12, square: 7R12/4 = 1,75R12). This tells us that, approximately, we’ll have a 27% bigger donut if it’s square than if it’s round.
tl;dr: Square donuts have a 27% more donut per donut in the same space as a round one.
Thank you donut side of Tumblr.