So, why do we call the core of a pencil "lead"? Graphite was initially thought to be a type of lead when it was discovered. Today's pencils are made of graphite and clay, a combination first introduced by Conté in 1795.

Alzheimer's disease is most frequently associated with memory loss, however this is not always the case, claims Alzheimer's Net. Keep in mind that Alzheimer's is caused by the quick loss of brain cells. This has an impact on many cognitive processes, including reasoning, memory, judgement, behaviour, and personality. Although memory loss is a common symptom, not everyone is equally affected.

So why doesn’t it burn your stomach? Because a thick layer of mucus protects the stomach lining and keeps the acid on the inside, where it’s churned with your food.

When gastric acid sometimes leaks up into the esophagus, which lacks this mucus layer, you know that burning feeling as heartburn. Proton pump inhibitors are drugs you can take to temporarily reduce acid production and allow the esophagus to heal.

Japanese alpinist Makoto Nebuka proposed that the word yeti derives from meti, which in some Tibetan, Nepalese, and Bhutanese dialects means "bear," or from the Tibetan Sherpa phrase yeh-teh, or "small, man-like animal."

Being a pirate was not limited to men. Mary Read, Anne Bonny, Grace O'Malley, and Ching Shih are examples of famous female pirates.

Yogurt is not only a delicious and healthy snack, but it also includes significant levels of lactic acid, which promotes healthy skin. Yogurt has been used as a natural moisturiser to restore dull, dry skin since ancient India.

We often get attracted towards the smell of the earth when it rains but have you have thought that rain too can have smell? But it does! Petrichor is the word that describes the scent of the rain. The reason behind it is that some plants secrete oild during dry periods & when it rains these oil get released into the air. And the aromatic compounds combine to create the pleasant scent of rain.

The effects of toxic air are worse for those who are most at risk. The development of a child's lungs is harmed by air pollution. Additionally, it exacerbates pre-existing respiratory and cardiovascular diseases, especially in elderly patients. Because they frequently reside close to major roads, where air pollution is severe, the poorest members of our society suffer more than others. Air pollution has an impact on every motorist. However, especially when using side routes, pedestrians and cyclists are frequently subject to less air pollution than those who travel by car.

Mirrors can reflect both light and matter. These mirrors are referred to as atomic mirrors. They trap slow atoms or focus an atomic beam by using an electromagnetic field to reflect neutral atoms.

In a country that’s famous for its windmills, it’s no surprise there are over 1,000 windmills spread across the Netherlands. 

The windmills traditionally harnessed the wind for a variety of purposes, such as grinding grain and draining wetlands, but there are only a few still in commercial operation. 

The UNESCO World Heritage Site of Kinderdijk is the best place to see Dutch windmills, with 19 traditional windmills.

A flounder is a fish of the families Achiropsettidae, Pleuronectidae, Paralichthyidae, and Bothidae. Flounders are born with eyes on both sides of their heads, but as they get older, one eye migrates to the other side of the body. This gives them a flattened look, which aids in their concealment on the sea floor. Flounders are found in both fresh and salt water habitats and can grow to be more than three feet long.

A blueberry's silver-gray bloom is a protective layer that serves as a covering. The bloom is what keeps the berries fresh, so wait to wash them until you're ready to eat them.

True trivia that may break a few hearts: when the Joker first appeared in 1940, he was supposed to be a one-off event that would disappear after a few incidents. Fans were so taken with his character, and they appreciated how brutal and unpredictable he was, that he was made a regular in the Batman franchise. He's lucky he wasn't cancelled! We would never have spotted these amazing Easter Eggs in the latest Joker film if it hadn't been for the internet!

Its origins are in the Greek words kalos, eidos, and skopios, which translate to "beautiful shape."

The photophores, which are glandular, light-producing organs, allow krill to glow. The purpose of this function, according to experts, is either for krill to communicate with one another when they swarm or to confound and elude predators.

Have you ever thought of a tongue getting fat? But it gets fat when the other parts of the body get interesting, right? There is a correlation between tongue fat volume and obesity. So, the tongue also gets fat when the body of a person does. Notice this from now on!

The Pacific Ring of Fire, often known as the circum-Pacific belt, is the world's greatest seismic belt, spanning Chile, Japan, and Southeast Asia. With nearly 130 active volcanoes, four minor earthquakes each day, and its location between the most active seismic area on the planet, Indonesia is the hottest point on the Ring of Fire. Because of population density, many Indonesians live perilously close to active volcanoes with regular rumblings.

Devotees bring Lord Surya unique and distinctive prasad (holy food), which usually consists of sweets, Kheer, Thekua, and fruits stored in a bamboo tokari. Salt, onions, or garlic should not be added to the prasad. Date fruits are the most essential offering during this Chhath puja (Khajur). After the last aarti to Lord Sun, the devotee distributes the date fruits to everyone in attendance.

Beagles flourish in an active family household, even with other animals, because to their loving and gregarious nature. This determined dog would do best in a backyard because they have lots of energy.

 

Blackbeard (AKA Edward Teach) was the most feared pirate in the world. He would weave hemp into his beard and light it on fire before boarding a ship, giving him a demonic appearance. Yikes! That would frighten us as well.

Nepal is home to 5,980 flowering plant species, 2% of the world's orchids, and 6% of rhododendron species. The country is home to over 250 species of flora and fauna, including 870 species of birds (roughly 8% of the world's total), 650 species of butterflies, and the world's largest moths and honeybees. The Chitwan National Park is a protected area for endangered and rare animals like Asia's one-horned rhinoceros and the Royal Bengal Tiger.

"We don't really know who first came up with the idea for looking at things in nature and divining influences on humans," NASA astronomer Sten Odenwald told Time. "There's some indication that cave art shows this idea that animals and things can be imbued with some spirit form that then influences you, and if you appease that spirit form, then you will have a successful hunt. That was taken over by the idea of divination, where you can actually look at things in nature and study them carefully, such as tea-leaf reading."

There are many concepts of life after death too. While what we majorly believe is the fact that if someone has been a kind, generous and good person, he will go to Heaven after his death. In case he has not been good enough then the person is sent to hell and is punished according to the sins he has committed. In another theory, it has been revealed that the goods and bad of a person are canceled after his death, and after reaching a neutral ground the person is sent to a commonplace after death. In addition to that, another theory reveals that a creature keeps coming back to earth in different life forms and after ding, as a human, he/she attains supreme salvation.