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.

E=MC2
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.

18 Smart Products To Help You Kick Off Summer

iStock/MCCAIG
iStock/MCCAIG

Whether you’re trying to spiff up your backyard barbeque or cultivate your green thumb, these summertime gadgets will help you celebrate the season from solstice to the dog days.

1. Rosé Wine Glasses; $60 for Two

Rosé Wine Glass
Amazon

Why It’s Cool: Wine not? When the temperature rises and beer isn’t your thing, reach for the rosé. Riedel’s machine-blown SST (see, smell, taste) wine glasses will give the sparkly stuff ample room to breathe, making every refreshing sip worthwhile.

Find It: Amazon

2. Nerf N-Strike Elite Surgefire; $19

Nerf SurgeFire
Hasbro

Why It’s Cool: The N-Strike Elite SurgeFire (say that five-times-fast) sports a pump-action rotating drum for maximum foam-based firepower and holds up to 15 Nerf darts in its arsenal.

Find It: Walmart

3. Bushel & Berry Plants; $34

plant
Amazon

Why It’s Cool: You don’t need to have a green thumb to create a brag-worthy garden this summer. Besides producing snackable mid-season berries, these open-growing bushes can be planted immediately for easy set-up to make you look like a botanical pro.

Find It: Amazon

4. Inflatable Donut; $11

An inflatable pool toy shaped like a pink donut with sprinkles
Amazon

Why It’s Cool: When the only dunking you’re doing is taking a dip in the pool, a 48-inch inflatable donut is the perfect way to stay afloat.

Find It: Amazon

5. Star Spangled Spatula; $21

American flag spatula
Amazon

Why It’s Cool: O say can you see by your grill’s charcoal light / Meats so proudly we cooked … with a star spangled spatula. Depending on the specific model, these all-American grilling tools (designed in New Jersey and made in Chicago) are made of a combination of walnut and stainless steel or nylon. As an added bonus: 5 percent of the proceeds go to the Penn Abramson Cancer Center.

Find It: Amazon

6. Mlb Hot Dog Branders; $6 AND UP

MLB San Diego Padres Hot Dog BBQ Brander
Amazon

Why It’s Cool: Take your hot dogs, sausages, brats, and more out to the ballgame without ever leaving your grill. These branders (which come in a variety of different designs repping teams across the country) from Pangea Brands are dishwasher-safe and made of ceramic-coated cast iron.

Find It: Amazon

7. Una Grill; $145

grill
MoMA Shop

Why It’s Cool: This portable charcoal-heated grill is as efficient as it is stylish. The compact size lets you cook at the park, on your deck, or anywhere in between.

Find It: Una

8. Hamburger Grilling Basket; $21


Why It’s Cool: Made of steel and finished with a non-stick coating, this grilling tool flips four burgers at once and maintains perfect burger proportions to guarantee nobody stays hungry for long.

Find It: Amazon or Walmart

9. Copper Fire Pit; $120

metal fire pit
Amazon

Why It’s Cool: The grill isn’t the only place for a roaring fire this summer. This 100 percent solid copper fire pit makes for the perfect gathering spot at your next BBQ, or just to warm up after a cool summer evening.

Find It: Amazon

10. Bendy Straw Pool Noodle Float; $10

Bendy Straw Inflatable Pool Float
Amazon

Why It’s Cool: Inflatable pool floats shouldn’t be boring, and this bendy straw float definitely does not suck. This unique spin on traditional pool noodles is sure to make for some cheesy jokes, but at least you’ll be comfortable floating in the pool or at the beach.

Find It: Amazon

11. Griddler Deluxe; $115

Cuisinart GR-150 Griddler Deluxe
Amazon

Why It’s Cool: If you’re looking for some serious panini power, this griddler offers up a versatile lineup of six cooking options in one. And with dual-zone functions you can sling burgers while searing filets and sautéeing vegetables all at the same time.

Find It: Amazon

12. Vintage Snow Cone Maker; $32

Vintage Snow Cone Maker
Amazon

Why It’s Cool: With its old-timey design, dual cone shelf, and endless flavor options, this snow cone maker is guaranteed create a cool treat.

Find It: Amazon

13. Dachshund Corn On The Cob Holders; $6

Dog Corn Holders
Amazon

Why It’s Cool: While meat-lovers will inevitably scarf down a lot of hot dogs this summer, vegetarians who happen to love another kind of dog will be smitten with these stainless steel, Dachshund-shaped corn on the cob prongs. They’re a fun spin on a summer grilling favorite.

Find It: Amazon

14. Ice Cream Sandwich Maker; $20

Ice Cream Sandwich Maker
Amazon

Why It’s Cool: Four sandwiches are better than one, especially when they're of the ice cream variety. Make four ice cream sandwiches at once with this homemade spin on a classic cold treat.

Find It: Amazon

15. Ue Wonderboom; $62

Bluetooth speaker
Amazon

Why It’s Cool: Besides delicious food and great company, some memorable tunes are required for the quintessential barbeque. This portable Bluetooth speaker offers up some booming sound in a small package, and with a battery power of 10 hours on a single charge you can keep the party going all night.

Find It: Amazon

16. Rollors Game; $50

Rollors Backyard Game
Amazon

Why It’s Cool: When you’re sick of bocce, hate horseshoes, and you’re over cornhole, you might want to take up “rollors,” a family-friendly game that combines your favorite traditional backyard festivities into one game for people of all ages.

Find It: Amazon

17. Hammock; $177

hammock
Amazon

Why It’s Cool: Rest easy knowing that this 100 percent hand-woven and hand-dyed cotton hammock contributes to artisan job-creation in Thailand.

Find It: Amazon

18. VSSL Survival Essentials; $45

Emergency Survival Tent Outdoors
Amazon

Why It’s Cool: Compact, convenient, and durable, the VSSL Shelter can come in handy when things don’t go quite as planned. The device—which features a lightweight emergency shelter all within the handle of a compact, weather-resistant aluminum LED flashlight—is designed to keep you safe under the worst conditions.

Find It: Moosejaw

Mental Floss has affiliate relationships with certain retailers and may receive a small percentage of any sale. But we choose all products independently and only get commission on items you buy and don't return, so we're only happy if you're happy. Thanks for helping us pay the bills!

A version of this story first ran in 2018. It has been updated to reflect current availability.

11 Unusual Cutting and Cheese Boards

Fred & Friends, Amazon
Fred & Friends, Amazon

Planning a wine and cheese party? Make sure what you're using to serve snacks is just as cute as your food is delicious.

1. Mouse Trap; $21

A cheese board shaped like a mouse trap

Fred & Friends, Amazon

At first glance, this item just looks like an oversized mouse trap. Ingeniously, the snapping part of the trap can be removed to reveal it's actually a cheese slicer. A chunk of cheese can be displayed and sliced on the 9-inch-long board—just don't invite any mice to the party.

Find it: Amazon

2. MOUSE BOARD; $30

A board shaped like a mouse hole with a mouse-shaped cheese cutter on top

Fred & Friends, Amazon

If a mouse trap is a little too macabre for your shindig, consider this adorable alternative. Assemble your cheeses on the 8-inch-long board and slice them up with a mouse-shaped knife that can be stored in the Tom and Jerry-esque mouse hole at the bottom.

Find it: Amazon

3. STATE SLATE; $20

Cheese and crackers arrayed on a slate cheese board

Bison Hill Stonecrafts, Amazon

Celebrate cheese from all over the United States with this patriotic slate. You can even grab a piece of chalk and write down the names of all the cheeses for hungry guests. Creator Bison Hill Stonecrafts will even personalize your board with a laser engraving, if you'd like.

Find it: Amazon

4. Log and Axe; $25

A cheese board shaped like a cut tree trunk

Fred & Friends, Amazon

Give your cheese a rustic presentation with this log and axe set-up. The solid beech cutting board is shaped like a log and comes with an axe-shaped knife to help you bring out your inner lumberjack.

Find it: Amazon

5. Mariner Wheel; $35

Invite all your sailor friends over for snacks with this nautical cheese board. When each of the four differently-shaped knives are placed into their respective holes in the board, the board looks like a ship's wheel.

Find it: UncommonGoods

6. Cheese Degrees; $20

A cutting board with a protractor design

Fred & Friends, Amazon

Make sure everyone gets an even amount of cheese with this obsessively precise cutting board. Whether you want perfect cubes or exactly portioned triangles, this cheese board can help ensure that everything is perfectly sliced.

Find it: Amazon

7. The States; $28

A cheese board in the shape of New York state

Amy Stringer-Mowat and Bill Mowat, UncommonGoods

Celebrate your home state with a bamboo cutting board created by New York-based woodworkers Amy Stringer-Mowat and Bill Mowat. You can see all the available state shapes in this PDF.

Find it: UncommonGoods

8. Voodoo Doll; $20

Pull out this voodoo doll-shaped board when you're feeling a little vindictive. You can hack away at meats and cheese and then store the knife appropriately in the wooden doll's back.

Find it: Overstock.com

9. Ampersand; $48

Delight your guests with some knowledge about where the ampersand comes from while using this board, which lets you fill a twisting line of crackers around three different cheeses.

Find it: UncommonGoods

10. Say Cheese; $19

A cheese board shaped like a smiling mouth

Fred & Friends, Amazon

Smile! It's cheese time. This mouth-shaped cheese board looks just as happy about the selection as you do. Underneath all the food, the board says "say cheese" in the center.

Find it: Amazon

11. The Obsessive Chef; $27

A cutting board with measurements on it

Fred & Friends, Amazon

This product comes with a series of lines to guide the cutter, including how to medium dice, small dice, brunoise, fine brunoise, batonnet, allumette, julienne, and fine julienne. The lines are burnished instead of printed, so they'll never get worn away.

Find it: Amazon or at one of the retailers below:

Mental Floss has affiliate relationships with certain retailers and may receive a small percentage of any sale. But we choose all products independently and only get commission on items you buy and don't return, so we're only happy if you're happy. Thanks for helping us pay the bills!

A version of this article first ran in 2017. It has been updated to reflect current availability.

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