Your brain is working on problem solving and learning skills while you sleep. If you're learning a new skill or studying new information, getting enough sleep and having dreams can help you learn faster.

Recently, SpaceX sent four passengers into Earth orbit aboard the Crew Dragon spaceship. A concept for an aeroplane dubbed Rukma Vimana may be found in the book Vaimanika Shastra. G. R. Josyer disclosed the book in 1952, claiming that it was authored by Pandit Subbaraya Shastry (1866–1940), who dictated it between 1918 and 1923. In 1957, the first spacecraft was launched. Looking at the images above, you can see how similar these designs are. So, how did a Pandit in India envisage the concept of a spaceship 34 years before the first spacecraft launched? Is it just a coincidence?

If you like crunching ice after finishing your Coke, you may be anaemic. The persistent chewing of ice, also known as "pagophagia," may be more than simply a nervous tick, but a technique of cooling inflammation in the mouth caused by a shortage of iron. So, if you enjoy nibbling on those cubes, get yourself to a doctor as soon as possible.

In the second millennium BC, ancient Egyptians described hysteria for the first time. The term 'hysteria' was coined by Hippocrates from the Greek adjective hysterikos, which means "from the womb." He blamed hysteria on the womb wandering within the female body, which caused anxiety, tremors, convulsions, paralysis, and a sense of suffocation. Hysteria was first associated with the brain in the 18th century, rather than the uterus. According to Sigmund Freud, it is caused by trauma and can affect both sexes. The DSM did not remove the concept of hysterical neurosis until 1980. Dissociative disorders are now thought to cause hysterical symptoms.

The United States government physically poisoned booze during Prohibition. When individuals continued to drink alcohol despite its prohibition, law enforcement authorities were dissatisfied and decided to try a different form of deterrent—death. They directed the poisoning of industrial alcohols made in the United States, which were frequently stolen by bootleggers. The federal poisoning operation is estimated to have killed at least 10,000 individuals by the end of Prohibition in 1933.

Archaeologists uncovered a tablet in Iraq in 1976, which has since been lost. Researchers, on the other hand, were able to interpret and decipher the writing from an image of the tablet. What were the outcomes? We know the tablet contains jokes, but the complete context has been lost in translation. The world's oldest your mother joke is "...of your mother is by the one who has relations with her." "What or who is it?" Do we comprehend it? No way, but we know a "your mom" joke when we see one!

Not everyone like frightening movies, but for those who do, there are a few hypotheses as to why, with the major one involving hormones. You receive all the adrenaline, endorphins, and dopamine from a fight-or-flight reaction when you watch a scary movie or go through a haunted house, but your brain knows that you're not truly in danger, so you get that natural high without the risk.

Apple has various devices like iPad, iPod, Mac, watch, and more. However, the most popular of them all is the iPhone. They reported that they have got revenue of about 25.99 billion USD for Q3 2019 from the sales of the iPhone.

There was a long-held belief that a sneeze travels at 100 mph, but current study has revealed that this is not the case. Nonetheless, that achoo is rather amazing. According to a 2013 research published in PLOS One, a sneeze moves at a pace of around 10 mph. Nonetheless, cover your mouth and nose to protect others from germs.

Tooth decay occurs when bacteria in your mouth convert sugar into acids, further eroding the tooth's surface and causing cavities. Cocoa beans contain antibacterial agents that inhibit the growth of these bacteria and help to prevent tooth decay. Dark chocolate contains more cocoa than milk chocolate. However, this does not imply that you consume chocolate on a daily basis.

Cheese rolling is one of the oddest sports that takes place every spring in Gloucestershire, in the west of England. An 8-pound round of Double Gloucester cheese is rolled from the top of Cooper Hill, and competitors pursue it down to the bottom. They are intended to catch the cheese, but it is nearly impossible, thus the first person to cross the finish line wins the cheese.

Being an astronaut is a serious profession, but they do allow for little fun every now and again. In space, "fun" activities, like as imbibing alcohol, are absolutely outlawed. However, astronauts have occasionally attempted to defy this regulation. Bottles of cognac have been "smuggled" into spacesuits by a few Russian cosmonauts. Smuggle because they couldn't lawfully transport the forbidden drug into space. They have acknowledged to mislabeling them as "juice bottles" or concealing them inside hollowed-out books. One determined astronaut concealed a little bottle in their blood pressure measurement device's wristband.

Fetuses with short protuberances have been observed as early as 16 weeks of gestation. While there haven't been enough studies to determine why this happens, some point to the age-old "use it or lose it" theory—the Los Angeles Times reported that periodic movements are required to keep the penile tissue oxygenated and healthy.

Many Koreans were forced to fight for the Japanese cause, but one soldier is said to have fought for almost everyone. According to folklore, after fighting for the Imperial Japanese Army, Korean soldier Yang Kyoungjong was captured and forced to serve for the Soviet Red Army, and then the German Wehrmacht. During this period, the Allies arrived in France, and Yang was captured by the US Army.

The amount of bourbon barrels in Kentucky outnumbers the state's population by more than two million. That's quite a bit of bourbon. Kentucky is the home of bourbon and produces 95 percent of the world's supply.

Austrians celebrated their victory over Hungary during the 1848 revolution by clinking their drinks during a toast. Since then, Hungarians have avoided clinking their glasses while toasting since it reminds them of their loss. Instead, if you're drinking a beer in Hungary, say "Egészségedre" while looking your drinking companions in the eyes.

Everyone has experienced the agony of rejection at some point in their lives, but did you know that rejection causes physical harm as well as emotional pain? Even if you are unable to feel physical pain, scientists have discovered that the reactions and cascading events that occur in the brain after rejection or physical pain are nearly identical. Furthermore, the same natural chemical is released in both cases.

Boys, more than girls, are more likely than girls to learn many lessons through experience rather than being told. This can make parenting them difficult, especially if you don't enjoy taking risks yourself. The most difficult challenge may be keeping them safe, so some risks must be avoided. It can also be difficult to be a support person as a parent when the lessons that boys learn bring hardship and tears.

Seattle residents Peter Cicero and Richard Sclafani are credited with inventing the number-themed eyeglasses that are now seen at New Year's Eve parties around the world. According to the Wall Street Journal, their first set, which read "1991," sold 500 pairs. The following year, approximately 3000 sets were purchased.

Ancient Egyptians regarded cats to be sacred creatures. Most households are said to have kept a cat as a pet because they felt it would bring them good luck!

According to LA Weekly, Disneyland's Clubb 33, which used to be a secret location where Walt Disney hosted important guests, is the only place in the park that serves alcohol.

It's extremely unusual, yet it has happened. The event known as "coffin birth" happens when a pregnant woman dies and her kid is born spontaneously owing to gases that build up in the abdominal area, placing pressure on the mother's uterus and driving the baby through the birth pathway. According to Smithsonian, one example of this was discovered in the grave of a mediaeval woman who was buried in Italy in 2010.

On Mondays, the chance of suffering a heart attack rises by 20% for men and 15% for women. It's most likely due to the stress of having to return to work. However, scientists caution that alcohol drank over the weekend can potentially be a cause of a heart attack.

In another University of Pennsylvania research, one group learnt about a starving small child, another about millions dying of hunger, and a third about both conditions. People gave more than twice as much money when they heard about the little girl as when they heard the statistics—and even those who heard her tale in the context of the larger tragedy gave less. Psychologists believe that we are predisposed to help the person in front of us, but when the situation feels too vast, we believe that our small contribution is insignificant.