If you get close enough, certain diamonds are so bright they can actually reduce you to cinders. That’s because the brightest (and also the largest) diamonds in the universe are actually stars. Stars have a natural life-cycle, and late in that process, after most of their fuel has been spent, they may become something called a white dwarf. White dwarf stars are incredibly dense, containing a mass similar to our sun in an area the size of the earth, and most of that core consists of compressed carbon atoms. It was theorized that eventually all that carbon would crystallize, but an actual diamond-filled star was not identified until 2004. The nearest space diamond, affectionately known as V886 Centauri, is estimated to be 4,000km across, making it 10 billion trillion trillion carats. Twinkle twinkle, indeed.
For a human mother-to-be, nine months of pregnancy may feel endless, but we still have it better than some members of the animal kingdom. Giraffes remain pregnant for 13 to 16 months—and not only that, they also give birth standing up, welcoming the baby into the world with a drop of 5 to 7 feet to the ground. Elephants experience pregnancy on an even larger scale, with the calf spending enough time in the womb to celebrate a second birthday before ever taking a breath. The longest vertebrate pregnancy, however, belongs to the frilled shark. One of several ancient species referred to as “living fossils,” this deep sea dweller can be gestate its young for 3.5 years before giving birth.
That extraordinary woman was Dr. Sara Josephine Baker. As a woman doctor at the dawn of the 20th century, she was not taken very seriously at first, and was given a no-win assignment from New York City Department of Health: reduce the death rate in Hell’s Kitchen, an infamous slum. Dr. Baker not only exceeded all expectations, but also through her efforts, by 1915 New York had the lowest infant mortality rate anywhere in the United States or Europe. Dr. Baker’s innovations included inventing safer baby clothing and sealed medicine capsules, instituting in-house doctors and nurses and public schools, standardizing disease screenings for children, and promoting school lunches to fight malnutrition. She was even able to use her prestige to open doors for other women. When the prestigious New York University Medical School invited her to address the student body, she agreed only on the condition that she and other women would be able to earn degrees at the all-male school.
There may be a lot of qualities that go into being a great mother, but if you’re speaking numerically, the greatest mother ever was an 18th century Russian peasant woman. Hailing from the hamlet of Shuya, it’s believed that her name was Valentina, although on official records she was always referred to as Mrs. Feodor Vassilyev. Over a 40-year period, Mrs. Vassilyev gave birth 27 times. Impressive, you say? That’s not all. Of those 27 births, 16 were pairs of twins, 7 were triplets, and 4 were quadruplets. That adds up to a grand total of 69 children, and what must have been some pretty intense Mother’s Day celebrations.
Anna Jarvis is perhaps the only person in history who would go to great lengths to discredit Mother’s Day cards. Jarvis believed that Mother’s Day should be spent in prayerful reflection and sincere gratitude for our mothers, not as the commercialized shopping opportunity it had become by the 1920s. To her, a gift of chocolate was an empty gesture, and a purchased card “means nothing except that you are too lazy to write to the woman who has done more for you than anyone in the world.” Jarvis campaigned fiercely for her cause, forming the Mother’s Day International Association and even trademarking the phrase “Mother’s Day”. She met with little public support, and was even once arrested for disturbing the peace. Why was Jarvis so worked up about Mother’s Day? Because she was the woman who lobbied to make it a national holiday in the first place.
Your mom may have packed up your lunch-break PB&J, but she couldn’t have done it without the help of Margaret Knight. Living in 19th century America, Knight was something we don’t often hear about in that age: a prolific woman inventor. She designed a kind of window sash, a numbering machine, and even a form of internal combustion engine. When an ironsmith she had hired to build a prototype for one invention tried to steal her patent, she wasn’t afraid to take him to court and reclaim her intellectual property. But Knight’s most lasting innovation can still be seen in grocery stores and school cafeterias. She invented a machine that folded and glued flat-bottomed, brown paper bags.
Yes and no. The kind of DNA that we typically think of in our cells, which is responsible for giving you your father’s nose or your mother’s dimples, definitely comes from both parents. However, that’s not the only kind of DNA you have. Inside your cells are a variety of “organelles” that perform specific functions. One of those, the mitochondrion, is known as the cell’s power plant. It also happens to contain its own independent set of DNA. Research suggests that this genetic material actually has a separate evolutionary origin than our regular DNA, and that mitochondria may have once been bacteria that established a symbiotic relationship within our cells. The other surprising fact about mitochondrial DNA? Children only inherit it from their mothers.
Thanks, Mom!
Actually, recycling looks very good on paper. According to the EPA, every year Americans consume 71 million tons of paper and paper packaging, but more than 60% of that is being recycled. Recycled paper fiber is such an efficient way of making paper that it requires only 60% as much energy, let alone other resources. For every ton of recycled paper produced, 17 trees, 7,000 gallons of water and 380 gallons of oil are saved—along with enough electricity to power an American family for six months!