Around the 15th century, the first toothbrush with bristles arrived on the scene in China. Bamboo sticks were outfitted with pig/boar hair, which had a scouring effect and quickly became more popular than ordinary chew sticks. Boar bristle toothbrushes were brought to Europe during the 17th century. Finding the boar bristles too abrasive, the Europeans began using horsehair instead, and some of the more affluent folks had special badger hair toothbrushes created for them. Bristled toothbrushes, on the other hand, were here to stay. Later types of bristles brushes would be constructed of bone, ivory, or other woods.

According to Crunchbase, Swiggy is concerned with speed and efficiency. The platform has been successful in its offer of an on-demand food delivery service that acts as a go-between for neighborhood restaurants to facilitate speedy delivery services in an on-demand format. The food is picked up from restaurants, then quickly delivered directly to the customers’ doors whether it’s at a local business or their homes.

A fog bow, as the name implies, is a rainbow that appears in fog rather than during rainfall. They are slightly fainter and more difficult to see than rainbows, but you are more likely to see the entire circle of the optical effect. Because fog is made up of smaller water droplets than raindrops, the full spectrum of colours in a fog bow is difficult to distinguish and appears as a bow of faint red and blue.

The noise produced by a jet aircraft during takeoff is millions of times louder than the sound you normally hear. Such thunderous sounds are known as deafening sounds, and they can inflict discomfort and substantial damage to your ears.

Both the beet and its greens are exceptionally good sources of manganese, copper, potassium, and vitamins A, K, and folate.
The high fiber content of beets promotes regularity and satiety.

Because Afrikaans is a daughter language of Dutch, it is far simpler for Afrikaans speakers to understand their "mother tongue" than the other way around. A significant degree of mutual understanding exists between written languages.

But don't worry, Earth is not in danger! Astronomers think our Milky Way has a massive black hole that is light-years away from Earth.

Don't use the mild weather in the middle of January to justify leaving the house without a jacket. The weather records from January 10, 1911, in Rapid City, South Dakota, show how quickly temperatures can drop. The temperature began at a pleasant 55°F, then dropped to 8°F in 15 minutes due to a powerful cold front. That day still holds the record for the world's fastest cold snap.

We wouldn't want our four-legged friends to miss out on the excitement of a birthday cake, and they no longer have to! Special birthday cakes for pets are now available, with options for dogs, cats, and even hamsters.

In the United Kingdom, nearly £368 million is spent on whole cakes each year, which includes birthday cakes! That's nearly £1 million worth of cake per day, which is a lot of cake (and even more candles). When you extrapolate this to the entire world, you'll discover that people eat between 50 and 100 million birthday cakes every single day, not just once a year.

When you steal someone's thunder, you use their ideas for your own benefit without giving them credit. Shakespeare appears to have used a sound effect invented by fellow playwright John Dennis to create the thunder heard throughout Macbeth. Appius and Virginia, Dennis's failed production, was the first to feature the sound. Dennis then heard thunder during a Macbeth performance shortly after that one ended. He was enraged that his thunder had been stolen.

This is due to the fact that Wan directed all three films.

Rattlesnakes, like other snakes, lack an eardrum in their inner ear anatomy, which prevents them from hearing sounds in the air. While some reptiles, like some species of lizard, have tympanic membranes, a snake's inner ear is directly attached to its mouth. Snakes must instead rely on their jaws to detect vibrations. However, there is an ongoing controversy among biologists as to whether snakes perceive sound through pressure or mechanical body vibrations.

Stingrays bury their bodies in the sand when they sleep, leaving their protective barb protruding to keep themselves safe. It is advised that beachgoers perform the "stingray shuffle" in order to cause vibrations in the sand and alert stingrays to their presence because this can be problematic in areas where humans join the ocean.

Many people believe Sherlock Holmes utilizes deductive thinking to solve the perplexing cases he encounters on a daily basis, but in truth, he employs abductive reasoning. Deductive reasoning, on the other hand, begins with a broad theory or hypothesis and evaluates several options to prove the predetermined theory. This, however, is not what Sherlock Holmes does when he arrives at a murder scene. He has no preconceived notions about what happened. Instead, he extrapolates information from what he sees to reach inferences about what actually occurred—this is abductive reasoning.

Apart from holding an important place in the history of pilgrimage, the city is also known as the land of Prime Ministers. 7 out of15 Prime Ministers of Independent India were from Allahabad. The names include Indira Gandhi, Jawahar Lal Nehru, Lal Bahadur Shashtri, Chandra Shekar, Gulzarilal Nanda, Vishwanath Pratap Singh

No surprise here - 'Avatar' holds the crown for the most expensive movie ever to win an Oscar with a production budget estimated to be around $280 million. While it failed to win Best Picture or Best Director, it did pick up Academy Awards for Art Direction, Cinematography and Visual Effects.

Harry Chandler, publisher of the Los Angeles Times, built the sign in 1923. It began as a $21,000 billboard for Chandler's Hollywoodland real estate development. In 1949, the sign was shortened to the one we are all familiar with.

A caustic phenolic compound, urushiol, a powerful skin-irritating toxin also present in the related poison ivy in the sumac family, surrounds the seed. Although some people are sensitive to cashews, they are a less common allergen than other nuts.

Teddy named Magellan T. Bear has become the first teddy to reach space when he boarded space shuttle discovery in 1995. The teddy bear was not just a bear but an education specialist on a mission. The teddy bear later flew around the world, visited the South Pole, and explored much more.

A microphone can convert sound waves into electrical signals that fall and rise in a manner that is comparable to the sound wave pattern you are attempting to record. Analog recording techniques, which save sound wave patterns as a wavy groove etched into a plastic disc, can be used to store auditory waves. The model can also be saved as a magnetic print on plastic tape.

The Last Supper, another masterpiece by Leonardo da Vinci, is a late 15th-century mural painting depicting Jesus' last supper with his apostles. He created the artwork between 1495 and 1496 with the intention of depicting the exact moment after Jesus reveals that one of his friends will betray him.Specifically, the apostles' expressions of rage and shock. Despite being one of the world's largest and most famous paintings, you won't be able to see it in a museum. It has a permanent residence in a convent in Milan, Italy.

All veggies that are traditionally fermented in Korea are referred to as "kimchi." In reality, it is more of a processing technique than a distinct meal! The most well-known kimchi is baechu kimchi (nappa cabbage kimchi). Other popular types of kimchi include kkakdugi (cubed daikon (radish) kimchi) and chonggak (radish kimchi with their leaves). The most common ingredients in kimchi are dried red peppers, garlic, and ginger. They may, however, include radishes, onions, shallots, carrots, leeks, Asian pears, apples, seafood (dry shrimp), and other vegetables. So many delicious ingredients!

Tobacco use is linked to hyperinsulinemia and an increase in insulin resistance (Facchini et al, 1992). Smokers are also known to have more abdominal fat (i.e. a higher waist to hip ratio) than nonsmokers (Shimokata et al, 1989). Smoking cessation improves insulin resistance, which includes the above-mentioned connections such as dyslipidemia.