Sound waves provide considerably lower levels of energy than other types of energy. Because any sound creates low energy levels, you don't want to use it to generate electricity, which demands a lot of energy.

Unfortunately, this is not good news for men. Depending on the species, the female spider may consume the male spider before, during, or after copulation! Did you know that this sexual cannibalism behaviour inspired the names of widow spiders like the black widow?

 Historical records state that 2000 people helped with his funeral arrangements. His army killed these 2000 individuals. Then, his escort killed the army. In addition, the escort killed anyone who got in their way so they could hide and bury him there. Finally, according to the legend, they committed suicide upon arriving at their destination. The slaves who built Genghis Khan's tomb were also murdered by his soldiers after it was finished. After that, soldiers perished as well. Thus, anyone who is aware of the burial site was either dead or killed.

As of today, Indonesia has 17,504 islands, however as climate change happens and sea levels rise, this will change over time. Although many officials continue to question the precise figure, the Indonesian government has proclaimed that this is the number for the time being, according to the Indonesian Coordinating Ministry for Maritime Affairs. Indonesia's incredible number of islands comprise the world's biggest archipelago, ranging from palm-fringed little islets to dense-jungle volcanoes towering up from the frothy sea waters.

Maine had a high level of patriotism. The first naval fight of the Revolutionary War took place near Machias in 1775. The British ship HMS Margaretta arrived in Boston to get wood for the construction of barracks, but residents refused and seized the ship with improvised weapons.

It’s true, cats were considered sacred animals in ancient Egypt. And from what I could see from our visits to Egypt they are still cared for and revered. Our guesthouse in Cairo had plenty of cats hanging out on its rooftop terrace that we enjoyed cuddling with. Cats were thought to bring good luck and they were so revered that when a cat died, the pharaohs had them mummified. As a cat lover, I can relate.

Books are an interesting market in part because they offer a 100% return policy. So, if a publisher sells 50 copies of a fresh new book to, say, Target or a local independent bookshop, that company has the option of returning all 50 copies to the publishing house if they don't sell. Isn't that crazy? 50 copies aren't much, but when you get into the hundreds, you can see how this can be a difficult market to predict.

The Chinese government started mass-producing it in the 14th century. Manufacturers weren't able to guarantee Splinter-Free Toilet Paper until 1935.

Convertibles have a tremendously exciting and romantic feel about them. Even though the country was not equipped for open-air automobiles and the heat, many Indians enjoyed the Standard Herald when it debuted in 1965. However, it is an excellent option for friends and families that wish to travel together. For decades, this automobile could be spotted on numerous Indian roadways.

Antibiotics are proven to kill microorganisms and improve our health. What is less generally recognised, however, is that antibiotics also destroy our healthy bacteria. Antibiotics will impact our immunity because probiotics make up between 70 and 80 percent of our immune response.

A fun fact about Spanish is the second language in the world with more native speakers. It comes right after Chinese and right before English. Spanish was born in Spain, but today it is spoken throughout the American continent and in some places in Africa and Asia.

Pablo Picasso, widely regarded as one of the twentieth century's most influential artists, created numerous renowned and beloved works of art. Les Demoiselles d'Avignon was painted in 1907 and depicts five naked female prostitutes in a brothel on Barcelona's Carrer d'Avinyó street.

According to Grunge, Russia discharged radioactive waste into Lake Karachay from 1951 to 1953. Like a result, its colouring is extraordinarily vivid (typically neon aqua, until it's agitated, as in this photo, when it bubbles crimson). You wouldn't be able to breathe after only one hour in its waters, such is the severity of its poisoning.

Carl Barnes, an Oklahoma farmer, spent years selectively breeding the colourful corn as a way to reconnect with his heritage. Anyone can now purchase and plant the multicoloured cobs.

Earthworms are fully formed when they are born, except for their sex organs. Their sexual system takes 60-90 days to develop. An earthworm's lifespan can range from four to eight years. Gardening earthworms, on the other hand, only live for a year or two.

It is a sin to visit Bangkok and not meander through the lanes of Chatuchak weekend market. Located on Kamphaeng Phet 2 road, it is the world's largest and most diverse market with an astounding 15,000 stalls divided into 27 sections. Objects and tidbits of all kinds are found here, and it's easy to get lost amongst the crowd of 200,000 - 300,000 daily visitors. Just remember to use maps and stay hydrated with some iced tea. If you want something smaller and more manageable, fret not. Almost every part of Bangkok has a weekly market. Some notable ones to check out are the night markets at Phra Ram 9 MRT station and JJ greens. 

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

In Germany, the desire to pursue freedom in every way possible is regarded as a primal human instinct. Therefore, if a prisoner makes an attempt to escape, they won't face further penalty for the action itself. However, the prisoner will face charges for any crimes they commit while trying to flee, including any property damage, personal injury, murder, or other offences.

The berry is used in a variety of ways by First Nations people. It can be consumed raw or combined with dried meat to make the traditional dish pemmican. In addition to being used to treat coughs, the juice is used to make dye.

The US Geological Survey (USGS) studies the invaders using marine lampreys caught in traps. They separate the females and kill them to restrict their reproduction. Before being released back into the Lakes, the males are injected with a sterilant to prevent subsequent progeny. It's unknown why they don't kill the males as well, but it's possible that such attempts would be too swift and disrupt the ecosystem's equilibrium (even if it is currently weighted in favour of the destructive sea lampreys).

Raindrops appears to be very fascinating since childhood. But have you ever wondered about its shape? Raindrops are more like hamburger buns. As the raindrops fall they become more flattened at the bottom resembling hamburger buns. Isn't this interesting?

Raw materials can be utilized to create kaleidoscopes. Pebbles and colorful stones will typically reflect good colorful shapes.

Fine arts contests were conducted in the Olympic Games from 1912 until 1948. Medals were awarded in the fields of literature, architecture, sculpture, painting, and music. The art that was made had to be Olympic-themed, of course. According to the modern Olympics' creator, Pierre de Frédy, the inclusion of the arts was important since the ancient Greeks had art festivals alongside the games. 151 medals were awarded prior to the removal of the art competitions.

Can you imagine Prince Harry as king—even before the scandal of his stepping down from royal duties? Back in 1837, the unthinkable became reality for Victoria. At birth, Victoria was fifth in line to the throne, but the deaths of various princes and a lack of male heirs resulted in the young woman capturing the crown.

Marie and Pierre Curie took part in examinations of Eusapia Palladino, an Italian medium who claimed she could channel the dead, and attended a series of seances two years after obtaining the Nobel Prize in Physics. Pierre obviously believed that some of Palladino's accomplishments, such as levitating items and tables, were genuine. (Marie didn't appear to be as convinced.)