John Duns Scotus, a thirteenth-century philosopher, believed that wearing a pointed cap would help spread knowledge from the tip to the brain, and his "Dunsmen" followers wore them as a badge of honour. However, his ideas became less popular in the 1500s, and the meaning of the Duns cap was turned on its head, becoming something of a joke.

When Chaim Weizmann, Israel's first president, died in 1952, the Prime Minister invited Einstein to fill the (mostly ceremonial) office. The scientist said no, writing: "I am extremely affected by our State of Israel's offer, and I am both heartbroken and humiliated that I cannot accept it. I've spent my whole life dealing with objective issues, therefore I lack both the natural ability and the expertise to deal with people and carry out official tasks."

Men have selective hearing, it's a fact! They can only listen to their female partners for 6 minutes, but this time is more than doubled to 15 minutes when they talk to their male friends. Before you start blaming men for their lack of attention, keep in mind that women pay more attention to conversations with their friends than to conversations with their romantic partners.

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.

Einstein was leaving a ceremony in his honour on his 72nd birthday. Photographers begged him to grin for the camera as he was getting into his car. Einstein, on the other hand, was weary of smiling for photos—he'd be doing it all evening—so he stuck his tongue out instead. Einstein was so taken with the photograph that he had it printed as greeting cards.

Psychologists have examined a phenomena known as reactance, which states that when individuals think that particular liberties are being taken away, they not only break the law, but break it significantly more than they would normally in order to reclaim their freedom. This might be one of the finest psychological facts to explain why a youngster who isn't allowed to use his phone in class will chew gum while texting.

The Salem witch trials took place between February 1692 and May 1693 in Salem, Massachusetts. Nearly 200 individuals, including the destitute, the elderly, and a four-year-old kid, were accused of witchcraft. The vast majority were imprisoned, and some were executed by hanging. However, none of these people were ever burned alive.

Now, before you start freaking out, please hear us out! Sedentism is encouraged in today's environment. After all, we sit during our commutes, to eat, to watch TV, to work, to socialise with our friends, and so on. It turns out that even if you exercise regularly, it won't keep you safe from the risks of the "office lifestyle."

We frequently predict how we will react to a future event, only to find out that we reacted completely differently than we anticipated. We put our faith in the ability of a single event to change everything, but we frequently discover that it has little effect on how we feel.

Granted, everyone dislikes certain colours, but is it really possible to be afraid of a specific colour? Apparently, yes. Chromophobia, also known as Chromatophobia, is an irrational fear or aversion to certain colours. Fortunately, chromophobia is an extremely rare diagnosis that is caused by a conditioned response or a previous negative experience.

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.

Another fascinating truth about Russia is that Russians, in general, have a lot of superstitions and customs. One of the most prevalent customs is to gift flowers only in odd numbers. Many Russians think that an odd amount of flowers should only be used in graves. If you gift an even amount of flowers to a Russian, they will take it personally. In addition to not giving away an even amount of flowers, Russians believe that clothing should not be worn inside out. The Russians think that if you put your clothing on inside out, you will be defeated.

Why doesn't your stomach digest itself if it has so many enzymes and acids that it can digest a piece of meat? It turns out that it sort of does. The cells that line your stomach proliferate fast in order to replace the cells that are killed in the course of their everyday tasks. Every three days, we develop a new gut lining.

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.

Guns and tiny toddlers are the ideal mix for having fun. A terrific location to take your kids, ages 12 to 18, that is completely safe. Simply purchase a ticket for them and they are set to enjoy their time at the military "Disney" camp. Despite the fact that this location is officially affiliated with Disney, the character of this "amusement park" is everything from childlike. Professionals teach children how to handle assault and sniper rifles and even introduce them to bare-handed fighting. Every day that they stay there, they practise their survival abilities, as the campers typically take on an obstacle course and form teams for sporting contests after breakfast.

In the winter, street sellers offer ice cream from paper boxes on the street. At -30 degrees Celsius, there's no need for a freezer (-22 degrees Fahrenheit).

Scientists from the University of Birmingham investigated bikers aged 55 to 79 who ride their bikes for many hours each day. These researchers discovered that cycling in old age keeps muscle mass and strength from deteriorating. And the fat and cholesterol levels remained constant. However, the most incredible discovery is that cyclists' systems generate immunological T-cells in equal numbers to 20-year-olds. It's incredible since T-cell production begins to decline around the age of 20. This demonstrates that riding a bicycle makes the immune system younger.

Though concluding definitively that colour affects a person's psyche has proven difficult, there have been a plethora of studies — some official, some not so official — that have come close. These investigations date back to the 1930s, when neurologist Kurt Goldstein began experimenting with colour and appearance. Goldstein discovered, for example, that people automatically assume red objects are heavier, while green objects are lighter.

During the first year of being in a romance, a protein in our cells called Nerve Growth Factor (NGF) that is vital for the functions of particular sympathetic and sensory nerve cells, appears to thrive. During youthful love, our senses are heightened, and our fight or flight reaction system is activated.

Do you consider all of your decisions, weighing all of your options and calculating the impact of each outcome? You may believe you are, but you are incorrect. The majority of your decisions are made subconsciously because your conscious mind would be overwhelmed with information and you would likely become mentally frozen. This is because your brain receives over 11 million bits of information every second, and there simply isn't enough "brainpower" to process it all consciously.

There are many misconceptions surrounding Washington, but one of the most common has to do with his teeth. Washington is commonly assumed to have had wooden dentures. This is not at all the case. While Washington had severe oral issues and wore dentures, wood was never employed as a material.

Those enormous Stetsons you associate with cowboys like John Wayne, Billy the Kid, and Wyatt Earp? Yeah. Those were not worn by cowboys. In reality, the headgear of choice for nineteenth-century cowboys was a bowler hat.

Pluto is no longer a planet, but it is still a good bet for lightening up. On the dwarf planet, a person weighing 150 pounds (68 kilogrammes) would weigh no more than 10 pounds (4.5 kg). Jupiter, on the other hand, has the most crushing gravity, weighing more than 354 pounds (160.5 kg). Mars, the planet most likely to be visited by humans, would also leave explorers dazed. Mars' gravitational pull is only 38% that of Earth's, implying that a 150-pound person would feel as if they weighed 57 pounds (26 kg). You are not fat, you are just on the wrong planet. 

According to a neurologist research, some individuals who have had brain trauma and have acquired damage on the right side of their brain have an obsessive preoccupation with making jokes that they deem humorous while not finding other people's jokes funny.