19 Things You Might Not Have Known About Albert Einstein

Hulton Archive, Getty Images
Hulton Archive, Getty Images

In 1999, Albert Einstein was awarded Time's Person of the Century. The father of special and general relativity, Einstein's theories introduced concepts that would help make dozens of modern technologies possible. "I have no special talents," Einstein was quoted saying. "I am only passionately curious." Here are some facts about the physicist who gave us crazy hair and E=MC^2.

1. When Albert Einstein was born, his misshapen head terrified the room.

A portrait of a young Albert Einstein with his sister.
A portrait of a young Albert Einstein with his sister.
Hulton Archive/Getty Images

On March 14, 1879, baby Einstein emerged with a "swollen, misshapen head and a grossly overweight body," according to Denis Brian's book, Einstein: A Life. When she got a look at him later, the chunky child terrified Einstein's grandmother, who screamed, "Much too fat! Much too fat!" Thankfully, Albert would eventually grow into his body. (However, he did have trouble developing in other arenas: He supposedly wouldn't start speaking until the age of 2.)

2. As a child, Einstein was the king of throwing temper tantrums.

The young genius had a habit of throwing objects whenever he was displeased; once, a frustrated Einstein even threw a chair at his teacher. The 5-year-old enjoyed bombarding his tutors and family members: His sister Maja, who was often conked in the head by Einstein's fusillades, later quipped, "It takes a sound skull to be the sister of an intellectual."

According to the biography by Alice Calaprice and Trevor Lipscombe, "When he became angry, his whole face turned yellow except for the tip of his nose, which turned white."

3. Einstein did not struggle in school.

The idea that Einstein had trouble in school is a myth. During summers, a pre-teen Einstein would study mathematics and physics for fun, eventually mastering differential and integral calculus by age 15. But that's not to say he was a perfect student. Einstein hated rote learning and refused to study subjects that didn't interest him. So, naturally, when the obstinate number-lover took the entrance exam to the polytechnic school in Zurich, he flunked the language, zoology, and botany sections.

4. Nobody knows Einstein's IQ.

Einstein's IQ was never tested, though that hasn't stopped people from guessing. Lots of websites claim the physicist's IQ was 160, but there's simply no way of verifying that claim. "One fundamental problem with the estimates I've seen is that they tend to conflate intellectual ability with domain-specific achievement," Dean Keith Simonton, professor emeritus of psychology at the University of California, Davis told Biography. For all we know, Einstein's aptitude in arenas outside of physics might have rivaled that of an average Joe.

5. Einstein refreshed his brain by playing the violin.

Einstein violin
Keystone, Hulton Archive // Getty Images

Whenever Einstein needed to relax, he turned to music. He started violin lessons at age 5 and, at around 17, impressed his teachers at cantonal school with his playing during a music exam. Around 1914, when Einstein lived in Berlin, he'd play sonatas with his friend and fellow theoretical physicist, Max Planck. And after he became famous, Einstein would play a handful benefit concerts alongside greats like Fritz Kreisler. "Music helps him when he is thinking about his theories," his second wife, Elsa, said. "He goes to his study, comes back, strikes a few chords on the piano, jots something down, returns to his study." [PDF]

6. Fashion was not Einstein's strong suit.

Einstein hated wearing socks and was immensely proud of the fact that he didn't have to wear them while giving lectures at Oxford in the 1930s. His antipathy apparently stemmed from a childhood realization: "When I was young I found out that the big toe always ends up making a hole in a sock," Einstein reportedly said. "So I stopped wearing socks." As an adult, he typically wore an undershirt, baggy trousers held by rope, and a pair of (occasionally women's) sandals.

7. Einstein loved sailing (and was absolutely terrible at it).

While an undergraduate in Zurich, Einstein fell in love with sailing—a passion that would persist throughout his life. There was just one problem: He was a horrible sailor. He regularly tipped his boat over and required rescue dozens of times. (His sailboat was named Tinef, Yiddish for "worthless.") In 1935, The New York Times reported on Einstein's sailing misadventures with the punny headline: "Relative Tide and Sand Bars Trap Einstein."

8. Fatherhood gave Einstein his iconic crazy hair.

As a young man, Einstein sported a well-maintained head of dark hair—that is, until his son Hans was born in 1904. Like many new parents, Einstein discovered that having a new mouth to feed changed everything: The patent clerk was so busy trying to support his family that he stopped combing his hair and visiting the barber. Slowly, an iconic look was born.

Einstein would spurn barbers for the rest of his life. His second wife, Elsa, would cut his mop whenever it became disheveled.

9. Einstein had a habit of mindlessly gorging on food.

When Einstein was a patent clerk, he formed a book club with two friends and called it the "Olympia Academy." The trio usually dined on sausages, Gruyere cheese, fruit, and tea. But on Einstein's birthday, his friends brought expensive caviar as a surprise. Einstein, who had a knack for mindlessly eating when talking about something he was passionate about, began stuffing his face while discussing Galileo's principle of inertia—totally unaware of what he was eating. He later offered this excuse: "Well if you offer gourmet foods to peasants like me, you know they won't appreciate it."

10. Einstein had a bawdy sense of humor.

Einstein enjoyed the occasional dirty joke. When he accepted his first job as a professor, he said, "[N]ow I too am an official member of the guild of whores." And when a member of his book club gave him a nameplate that said "Albert, Knight of the Backside," Einstein proudly kept it tacked on his apartment door. Later in life, he'd tell jokes to his pet parrot, Bibo. (Einstein believed the bird was depressed and needed a laugh.)

11. Einstein loved the famous tongue photo.

Einstein lounging
Three Lions, Hulton Archive // Getty Images

On his 72nd birthday, Einstein was leaving an event held in his honor. As he was getting into his car, photographers asked him to smile for the camera. Einstein, however, was sick and tired of grinning for a photograph—he'd be doing it all evening—so he popped his tongue out instead. Einstein liked the photo so much that he put it on his greeting cards.

12. Einstein was an inventor.

Having spent seven years working in the Swiss Patent Office, Einstein was naturally curious about inventing and would secure approximately 50 patents during his lifetime. He enjoyed tinkering with electronics and would eventually patent a self-adjusting camera, a refrigerator that could last 100 years, and even a blouse.

13. When it came to love, Einstein was no genius.

Einstein, who married twice, had multiple extramarital affairs—including one dalliance with a possible Russian spy. His first marriage with Mileva Marić (a physicist he met at the Swiss Polytechnic School) soured after the birth of their third child. As their marriage crumbled, Einstein imposed a list of brusque—if not cruel—demands which included: "You will obey the following points in your relations with me: 1. You will not expect intimacy from me … 2. You will stop talking to me if I request it." Unsurprisingly, they divorced. Later, Einstein married his cousin, Elsa Löwenthal.

14. A letter Einstein signed helped spark the Manhattan Project.

Einstein was not part of the Manhattan Project, but he was instrumental in getting it started. In the late 1930s, German scientists discovered nuclear fission of uranium, a major step toward the development of the atomic bomb. Much of the world's uranium was held in the Congo—then a colony of Belgium—so two Hungarian-American physicists named Leo Szilard and Eugene Wigner decided to get Einstein to write a letter to his friend, the Queen of Belgium. Einstein suggested a letter to a Belgian minister instead, but an encounter with an economist who knew President Roosevelt resulted in a change in direction and a letter that prompted America to start its own experiments.

15. Einstein loved answering fanmail from children.

Einstein received countless letters from the public, but he always tried to answer mail sent by children. (In one letter, a young girl complained about her troubles with math. The professor supposedly wrote back, "Do not worry about your difficulty in Mathematics. I can assure you mine are still greater.") Einstein's many correspondences with children—filled with charm and encouragement—are compiled in a book by Alice Calaprice called Dear Professor Einstein.

16. Einstein turned down the presidency of Israel.

The world's first nuclear-powered aircraft carrier the USS Enterprise gives Einstein a shout-out as it launches the first nuclear-powered circumnavigation of the world in 1964.
Keystone, Hulton Archive // Getty Images

After the first president of the State of Israel, Chaim Weizmann, died in 1952, the Prime Minister asked Einstein to step into the (mostly ceremonial) role. The physicist declined, writing: "I am deeply moved by the offer from our State of Israel, and at once saddened and ashamed that I cannot accept it. All my life I have dealt with objective matters, hence I lack both the natural aptitude and the experience to deal properly with people and to exercise official functions."

17. Einstein was an outspoken advocate for racial justice.

Having abandoned Germany in 1933 to avoid Nazi persecution, Einstein was sensitive of the racial discrimination he saw in the United States. He championed the rights of African Americans and was a member of the NAACP. When the famed black singer Marian Anderson came to perform at Princeton in 1937 and was denied a hotel room, Einstein invited her to stay in his home. He was also pen pals with W.E.B. Du Bois and, when Du Bois became the target of the Red Scare, Einstein effectively saved Du Bois by offering to be his character witness. In a 1946 speech he delivered at Pennsylvania's Lincoln University, he called segregation "a disease of white people," vowing, "I do not intend be quiet about it."

18. Einstein was the inspiration for Yoda.

Yoda's face was partly modeled after Einstein's. According to Star Wars special-effects artist Nick Maley, "A picture of Einstein ended up on the wall behind the Yoda sculptures and the wrinkles around Einstein's eyes somehow got worked into the Yoda design. Over the course of this evolutionary process Yoda slowly changed from a comparatively spritely [sic], tall, skinny, grasshopper kind of character into the old wise spirited gnome that we all know today."

19. Einstein's theories are more relevant than you think.

It's easy to assume that Einstein's theories of relativity are purely theoretical, but they really do affect your everyday life. For instance, the theory of general relativity states that gravity affects time: Time moves by faster for objects in space than objects here on Earth. And that has profound implications for many space-based technologies, especially the accuracy of your GPS. His theories also explain how electromagnets work and are foundational to nuclear technology.

9 Other Things That Happened on July 4


Of course we know that July 4 is Independence Day in the U.S. But lots of other things have happened on that date as well. Here are just a few of them:

1. Three former presidents died.

On July 4, 1826, John Adams and Thomas Jefferson—America's second and third presidents, respectively—both passed away. The two politicians had a love-hate relationship, and Adams's last words were supposedly, "Thomas Jefferson survives." (He didn't know that Jefferson had passed away a few hours earlier.) Exactly five years later, on July 4, 1831, fifth U.S. President James Monroe died in New York City.

2. Henry David Thoreau moved to Walden Pond.

On July 4, 1845, Henry David Thoreau began his two-year living experiment at Walden Pond, near Concord, Massachusetts.

3. Alice Liddell first heard the story of Alice in Wonderland.

On July 4, 1862, little Alice Liddell listened to a story told by Lewis Carroll during a boat trip on the Thames ... it would later become, of course, Alice's Adventures in Wonderland. It was published exactly three years later—on July 4, 1865.

4. Two famous advice columnists were born.

On July 4, 1918, twin sisters Esther Pauline and Pauline Esther Friedman were born. Today they're better known as Ann Landers and Dear Abby.

5. George Steinbrenner came into the world.

On July 4, 1930, future Yankees owner George Steinbrenner was born (and presumably fired the doctor immediately).

6. Lou Gehrig delivered his retirement speech.

On July 4, 1939, Lou Gehrig gave his famous retirement speech at Yankee Stadium after being diagnosed with ALS. He tells the crowd that he considers himself "the luckiest man on the face of the earth."

7. The Zodiac Killer killed for the first time. (As far as we know.)

On July 4, 1968, the Zodiac Killer murdered his first victims (that we know of) at Lake Herman Road in Benicia, California.

8. Koko was born.

On July 4, 1971, Koko, the sign-language gorilla, was born.

9. Bob Ross passed away.

On July 4, 1995, Bob Ross died, and all over the world, Happy Little Trees were a little less happy.

This list first ran in 2008 and was updated for 2019.

12 Facts About Diabetes Mellitus


Thirty million Americans—about 9 percent of the country's population—are living with diabetes mellitus, or simply diabetes. This chronic condition is characterized by sustained high blood sugar levels. In many patients, symptoms can be managed with insulin injections and lifestyle changes, but in others, the complications can be deadly. Here's what you need to know about diabetes mellitus.

1. There are three types of diabetes.

In healthy people, the pancreas produces enough of the hormone insulin to metabolize sugars into glucose and move the glucose into cells, where it's used for energy.

But people with type 2 diabetes—the most common form of the disease, accounting for about 95 percent of cases—either can't produce enough insulin to transport the sugars, or their cells have become insulin-resistant. The result is a buildup of glucose in the blood (a.k.a. high blood sugar or hyperglycemia). Type 2 diabetes typically develops in adults.

Type 1 diabetes, also known as juvenile diabetes, makes up the remaining 5 percent of chronic cases and most often develops in children and young adults. With this condition, the initial problem isn’t blood sugar levels, but insulin production: The pancreas can’t make enough insulin to process even normal amounts of glucose. The sugar builds up as a result, leading to dangerous concentrations in the bloodstream.

The third form, gestational diabetes, only afflicts pregnant people who weren’t diabetic before their pregnancy. The mother's blood glucose levels usually spike around the 24th week of pregnancy, but with a healthy diet, exercise, and insulin shots in some cases, diabetes symptoms usually can be managed. Blood sugar levels tend to return to normal in patients following their pregnancies.

2. The mellitus in diabetes mellitus means "honey sweet."

Around 3000 years ago, ancient Egyptians described a condition with diabetes-like symptoms, though it wasn't called diabetes yet. It took a few hundred years before the Greek physician Araetus of Cappodocia came up with the name diabetes based on the Greek word for "passing through" (as in passing a lot of urine, a common diabetes symptom). English doctor Thomas Willis tacked on the word mellitus, meaning "honey sweet," in 1675, building on previous physicians' observations that diabetic patients had sweet urine. Finally, in 1776, another English physician named Matthew Dobson confirmed that both the blood and urine of diabetes patients were made sweeter by high levels of glucose in their blood.

3. The cause of one type of diabetes is well understood; the other, not so much.

A person’s lifestyle is a key predictor of developing type 2 diabetes. Factors like being overweight or obese, consuming a high-calorie diet, smoking, and seldom exercising contribute to the risk. Foods and drinks that are high in sugar—soda, candy, ice cream, dessert— may contribute to hyperglycemia, but any food that’s high in calories, even if it's not sweet, can raise blood sugar levels.

In contrast to these well-established factors, medical experts aren’t entirely sure what causes type 1 diabetes. We do know that type 1 is an autoimmune disease that develops when the body attacks and damages insulin-producing cells in the pancreas. Some scientists think that environmental factors, like viruses, may trigger this immune response.

4. Family history also plays a role in diabetes risk.

If a parent or sibling has type 2 diabetes, you are predisposed to developing pre-diabetes and type 2 diabetes. Lifestyle habits explain some of these incidences, since family members may share similar diets and exercise habits. Genetics also play a role, but just because one close relative has diabetes does not mean you're destined to. Research conducted on identical twins, which share identical genes, showed that the pairs have discordant risk. Among twins in which one has type 1 diabetes, the other has only a 50 percent chance of developing it; for type 2, the risk for the second twin is 75 percent at most.

5. Racial minorities are at a higher risk for developing diabetes.

Many racial minority groups in the U.S. have a higher chance of developing type 2 diabetes. Black Americans, Latino Americans, Native Americans, Pacific Islanders, and some groups of Asian Americans are more likely to have pre-diabetes and type 2 diabetes than white Americans. This can be partly explained by the fact that some of these groups also have higher rates of obesity, which is one of the primary risk factors of type 2 diabetes. Socioeconomics may also play a role: One study shows that people with diabetes living in poverty are less likely to visit diabetes clinics and receive proper testing than their middle-income counterparts. According to another study, diabetic people without health insurance have higher blood sugar, blood pressure, and cholesterol rates than insured diabetics. Genetics, on the other hand, don’t appear to contribute to these trends.

6. Diabetes is one of the world's deadliest diseases.

With proper management, people with diabetes can live long, comfortable lives. But if the disease isn’t treated, it can have dire consequences. Diabetics make up the majority of people who develop chronic kidney disease, have adult-onset blindness, and need lower-limb amputations. In the most serious cases, diabetes leads to death. The condition is one of the deadliest diseases in the world, killing more people than breast cancer and AIDS combined.

7. Millions of Americans are pre-diabetic.

According to the CDC, 84 million adults living in the U.S. are pre-diabetic: Their blood sugar is higher than what’s considered safe, but hasn't yet reached diabetic level. In pre-diabetic patients, blood glucose levels after eight hours of fasting fall between 100 and 125 milligrams per deciliter, and diabetic levels are anything above that. People with pre-diabetes are not just at a greater risk for type 2 diabetes, but also for heart disease and stroke. Fortunately, people who are diagnosed with pre-diabetes can take steps to eat a healthier diet, increase physical activity, and test their blood glucose level several times a day to control the condition. In some cases, doctors will prescribe drugs like metformin that make the body more receptive to the insulin it produces.

8. After climbing for decades, rates of diabetes incidence are declining.

In the U.S., the rate of new diagnoses skyrocketed 382 percent between 1988 and 2014. Globally, 108 million people had diabetes in 1980, but by 2014 that number was 422 million.

But thanks to nationwide education and prevention efforts, the trend has reversed in the U.S., according to the CDC. Since peaking in 2009, the number of new diabetes cases in America has dropped by 35 percent. In that same timeframe, the number of people living with diagnosed diabetes in the U.S. has plateaued, suggesting people with the condition are living longer.

9. The first successful treatment for type 1 diabetes occurred in 1922.

Prior to the 20th century, type 1 diabetes was usually fatal. Diabetic ketoacidosis—a toxic buildup of chemicals called ketones, which arise when the body can no longer use glucose and instead breaks down other tissues for energy—killed most patients within a year or two of diagnosis. In searching for way to save children with juvenile (type 1) diabetes, Canadian physician Frederick Banting and medical student Charles Best built on the work of earlier researchers, who had demonstrated that removing the pancreas from a dog immediately caused diabetes symptoms in the animal. Banting and Best extracted insulin from dog pancreases in University of Toronto professor J.J.R. Macleod's lab. After injecting the insulin back into dogs whose pancreases had been removed, they realized the hormone regulated blood sugar levels. On January 11, 1922, they administered insulin to a human patient, and further refined the extract to reduce side effects. In 1923, Banting and Macleod received the Nobel Prize in Medicine for their work.

10. A pioneering physicist discovered the difference between type and and type 1 diabetes.

In the 1950s, physicist Rosalyn Yalow and her research partner Solomon Berson developed a method for measuring minute amounts of substances in blood. Inspired by Yalow's husband's struggle with diabetes, Yalow focused her research on insulin. Their "radioimmunoassay" technology revealed that some diabetes patients were still able to produce their own insulin, leading them to create two separate categories for the disease: “insulin-dependent” (type 1) and “non-insulin-dependent” (type 2). Prior to that discovery in 1959, there was no distinction between the two types. In 1977, Yalow won the 1977 Nobel Prize in Medicine for the radioimmunoassay, one of only 12 female Nobel laureates in medicine.

11. Making one insulin dose once required tons of pig parts.

Insulin is relatively easy to make today. Most of what's used in injections comes from a special non-disease-producing laboratory strain of E. coli bacteria that's been genetically modified to produce insulin, but that wasn't always the case. Until about 40 years ago, 2 tons of pig pancreases were required to produce just 8 ounces of pure insulin. The pig parts were typically recycled from pork farms.

12. A quarter of diabetes patients don’t know they have it.

The symptoms of type 2 diabetes can develop for years before patients think to ask their doctor about them. These include frequent urination, unexplained thirst, numbness in the extremities, dry skin, blurry vision, fatigue, and sores that are slow to heal—signs that may not be a cause for concern on their own, but together can indicate a more serious problem. Patients with type 1 diabetes may also experience nausea, vomiting, and stomach pain.

While serious, the symptoms of diabetes are sometimes easy to overlook. That’s why 25 percent of people with the illness, 7.2 million in the U.S., are undiagnosed. And that number doesn’t even cover the majority of people with pre-diabetes who aren’t aware they’re on their way to becoming diabetic.