When you hear crickets chirping on a warm summer evening, don't be afraid to try this easy trick to determine the temperature. To determine the temperature in Celsius, simply count how many chirps there are over a period of 25 seconds, divide by 3, and then add 4 to get the frequency of a cricket's chirps.

When lightning strikes sand, glass can naturally develop due to the high temperatures. 
 

Slowbro is unusual in its capacity to revert to its previous incarnation, Slowpoke, according to the sometimes untrustworthy Pokedex entries. When a Shellder hooks on to a Slowpoke's tail, the creature develops, and it appears that the process is reversed if the shell Pokemon ever lets go.

Without a single piece of wreckage being found, the riddles of what happened to almost a hundred distinct planes remain a mystery to this day. Nobody knows where they went or what happened to the planes that vanished.

One of our favourite amusing facts about Poland is that it is home to the world's first upside down house. The topsy-turvy wooden home was erected upside down in a forest and appears to be something out of a storybook. Visitors must enter the home through the attic windows and may walk around the furnished interior, which is evocative of Communist Poland in the 1970s, to symbolise how Communist control turned life in Poland upside down. Hundreds of interested visitors have visited the home since its unveiling in 2007, and it is located in the little Polish town of Szymbark, which has a population of roughly 500 people.

While the British forbade lipstick, it remained a popular option in the good old USA, or more correctly, the American colonies. Colonial ladies altered the color of their lips by smearing red ribbons on them and sipping lemons. One colonial-era whisky company even advertised that it would turn consumers' lips crimson. They were probably mixing up the lips with the nose and Gin Blossoms. The original first lady, Martha Washington, had her own formula for lip rouge. She combined hog's lard with spermaceti discovered in whale intestines. That sounds really revolting!

Did you know? Insects are the only invertebrates with wings.

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.

In 2010, a Southern California school district temporarily removed all copies of Merriam-10th Webster's Collegiate Edition from elementary school classrooms. Why get rid of the dictionary? The school district decided to remove the books after a parent informed the principal of Oak Meadows Elementary School that the dictionary contained an explicit definition of a sex act. The dictionary was deemed age-appropriate by a committee of teachers, administrators, and parents, and the copies of Merriam-Webster were returned to the classroom. Let's hope that parent never finds out about Urban Dictionary!

Pirates from The Bahamas had their flags custom-made by a sailmaker's widow who accepted brandy as payment, while Blackbeard had his own black flag with a skeleton with horns. The skeleton held an hourglass in one hand and a spear pointing to a heart dripping with three drops of blood in the other.

It was used for the execution of captives, including as Christians and Jews, as part of the Roman Triumph, as well as chariot racing. Historians estimate that the Circus Maximum could house 150,000 - 250,000 people at any given time. This implies it might house more spectators than North Korea's Rungrado May Day Stadium, the world's largest capacity stadium, which can hold around 114,000 people.

Despite the fact that food never enters the pancreas, the organ is crucial to digestion. It secretes pancreatic fluid, which is transported to the duodenum via the pancreatic duct. The fluid's enzymes assist in the breakdown of fat, protein, and carbohydrates once it enters the digestive system. It performs the role of an exocrine gland by secreting a substance through ducts to other areas of the body. It also performs an endocrine function, secreting two hormones into the bloodstream to aid in blood sugar regulation. When you have too much sugar, insulin is released, and when you don't, glucagon is released.

"I didn't like the guitar," Lisa Kudrow admitted of Phoebe Buffay's musical instrument of choice. "It wasn't sinking in with me. So I'm pretty sure I asked, 'What if she plays the bongos?'" They eventually brought in a guitar teacher, but that didn't last long. Kudrow learned a couple of chords before declaring that she was finished with the lessons. She reasoned that Phoebe would only know a few chords anyway. And thank goodness, because "Smelly Cat" is perfect as is.

This, often known as social anxiety, causes severe stress about social interactions and can lead to self-isolation. Simple circumstances such as answering the phone might create panic in people who have social phobias. People who are socially anxious will go to great lengths to avoid being in public.

The first iPhone was introduced to the world by Steve Jobs. It was 9 January 2007, he announced the release of iPhone in San Francisco, California. He said ‘Today, Apple is going to reinvent the phone’ in his address and showed the world a revolutionary touchscreen phone.

During the medieval period, Khajuraho had 85 temples, of which only 22 Hindu temples remain, the rest having been destroyed by natural disasters.

Onychophagia. Between 25 and 30 percent of kids are thought to bite their nails regularly.

The age of language is still a point of contention. Nonetheless, most linguists agree that it started around the time modern humans (homo sapiens) evolved in Africa with modern skull shapes and vocal cords. Language evolved with the right tools in place — a large enough skull, a brain, and a voice box. Some anthropologists speculate that language may have evolved prior to the physiological development of modern brains and larynxes, but 100,000 BC is a good starting point

One of the reasons pirates wore eye patches, according to legend, was to keep one eye adjusted to night vision for seeing below deck.

Apparently, the designers pick their muse based on who they think will embody their vision the best. Past designer and celebrity collaborations have been Donatella Versace and Lenny Kravitz back in 2006, Rihanna and Stella McCartney in 2014, and Cher and Marc Jacobs.

Due to cost or a lack of infrastructure, 70–75 percent of the world still doesn't use toilet paper.

In Switzerland, 530,000 individuals are classified as poor, with a monthly income of CHF2,219 ($2,275.40) for singles and CHF4,031 for families of two adults and two children. That equates to 6.6% of the population, down from 9.3% in 2007. The proportion of Swiss people living in extreme poverty (4.6%) is among the lowest in Europe (18.6% on average). In Switzerland, 9.7% of the population cannot afford a week's vacation abroad; the European average is 36.9%.

The temple's Shiva linga was thought to safely house the famed Syamantak Mani, the Philosopher's stone linked with Lord Krishna, within its hollowness. It was a miraculous stone that could turn into gold. This stone was thought to have alchemical and radioactive qualities. It had the ability to generate a magnetic field around itself, keeping the linga afloat above earth.