Going through a list of America's most notorious serial killers, two signs stand out above all the rest: Pisces and Gemini. Pisces are known for being loners, and Geminis are known for their charm—two characteristics commonly found in serial murderers.

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.

This was the straight arcade sequel to Donkey Kong's original game. Mario, fed up with Donkey Kong's kidnapping, confines him in a cage. He had no idea Donkey Kong Junior would show there to help his father. Players must guide the young ape through numerous stages in order to save Donkey Kong. Are you still not persuaded that Nintendo meant Mario to be a villain in this game? The Japanese video game studio had given him a minor makeover, with a big nose, protruding chin, and curling moustache. He was designed to resemble a spindly silver screen villain who ties women to railroad tracks. In fact, if he wore a purple cap and shirt, he could pass for Waluigi.

In 2016, a Ukrainian aero-engineer unveiled a system that would allow pilots to eject the cabin of a plane if the engine failed. After ejection, parachutes would be deployed to safely lower passengers to the ground. However, as it turns out, most crashes are not caused by engine failure. Because problems typically occur during takeoff and landing, the pilots would have very little time to successfully eject the cabin and save passengers. But kudos for your effort!

Your vitamin D levels must be within the recommended range to ensure healthy health. Adults require 20 to 30 nanograms (ng) per milliliter (ng/mL) of vitamin D in their blood, according to the NIH. Even though a test is required to determine whether your levels are in that range, doing so is not required unless you have a condition like osteoporosis, according to the Cleveland Clinic.

San Marino is the world's fifth-smallest country, behind Monaco, the Vatican city-states, and the island countries of Tuvalu and Nauru. San Marino has a population of 33,562 people and a land area of slightly more than 61 km2 (24 sq mi).

Who knew there was a happy mascot out there named Herbie Hot Pockets? We'll let you decide if the sandwich with sunglasses is adorable or disturbing.

Arsenal on the Kyiv city metro line (Sviatoshynsko - Brovarska Line) is currently the world's deepest metro stop. It is 105.5 meters deep. Escalators transport you deep underground so that you can catch the train. Arsenal had to be 105.5 m deep because it had to bypass the Dnieper River, which rises above and surrounds Kyiv. You will ride the escalator for five minutes to reach 105.5 m deep down the station.

You could be well on your way to a healthier and longer life if you routinely fill your supermarket cart with a variety of vegetables.

In no way are fairies dangerous to people. They can be a serious threat to other insects because they are parasites of other insects.

There are so many different ways to express your beliefs. Some people believe in God and go to church regularly or belong to a religious community. In contrast, others do not believe in God at all! Some people meditate. Others just focus more inside themselves rather than externally. And others are less egoistic and more altruistic.

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!

Plath received a $2,080 novel-writing fellowship from the publisher Harper & Row, but when she turned in her manuscript they declined to publish it. An editor at Harper & Row called it "disappointing, juvenile and overwrought." The novel was eventually published in the U.K., but Plath was not able to find a U.S. publisher for it in her lifetime.

The original script for Butch Cassidy and the Sundance Kid, by William Goldman, was originally titled The Sundance Kid and Butch Cassidy. That all flipped when Paul Newman, maybe the biggest star on the planet at the time of production, took the role of Butch.

Cupcakes were once known as "1234" or "number" cakes, which is a fascinating and educational fact about them. This is because they are typically made with four ingredients: one cup of butter, two cups of sugar, three cups of flour, and four eggs. So, the next time you make a cupcake, keep the order in mind.

If you are easily agitated, you can employ visualization to relax by creating vision boards. For example, if you are apprehensive about giving a speech, imagine yourself giving the best and most memorable speech ever. Consider yourself in a beautiful gown, with everyone appreciating your efforts. Display a picture of a stage and cut a picture of yourself to place in the center of the stage. Imagine yourself giving your finest speech to a delighted audience every time you view this vision board. When you feel out of balance, you can use visualization to get your thoughts back on track. Listening to quiet music and envisioning your day can help you order your thoughts, mentally prepare, and sleep better.

The cornea is one of only two organs in the human body that lacks blood vessels. The cornea is the transparent portion of the eye that protects the pupil and other parts of the eye. According to scientists at the Harvard Department of Ophthalmology's Schepens Eye Research Institute, cartilage and the cornea are the only types of tissue in the human body that lack blood vessels. Your eye also has some unusual characteristics that you probably aren't aware of.

Uncracked codes are shown in a sculpture outside the CIA headquarters in Langley, Virginia. The Kryptos sculpture, created by artist Jim Sanborn, has four inscriptions, three of which have been broken but the fourth remains a mystery.

Calvin Coolidge, the former president of the United States, owned a variety of pets, including a donkey and a bobcat. Oh, and a few of lions. They were given to them as cubs by the South African government. Tax Reduction and Budget Bureau are their names.

You may encourage a timid cat to come out of her shell and play by giving her catnip. Catnip spray may be used to rejuvenate toys that your cat may be neglecting in order to persuade your cat to play with them again. Catnip might help your cat become more interested in a scratching post. If your cat has gone through a difficult period, a session with catnip will help her relax and blow off steam.

Taste receptor cells in the pancreas enable it to detect the presence of sugar. Artificial sweeteners are also "tasted" by it. But unlike our tongue's taste buds, it doesn't send these sensations back to the brain. Instead, the pancreas uses this sensory data to maintain a healthy hormonal balance and blood glucose levels.

Although niacinamide concentrations might vary between brands, most formulations have a maximum of 5%. According to certain reports, 5 percent of formulations can effectively heal hyperpigmentation and sun damage. You might wish to start with a lower concentration if you have sensitive skin. Formulas with 2% niacinamide may be useful in reducing the signs and symptoms of eczema and related diseases. Niacinamide may appear on product labels under the names "niacin" and "nicotinamide".

Splash Mountain, the fastest ride in the Disneyland theme park, reaches a top speed of 40 miles per hour as riders plummet into the briar patch below.

More than 700 different versions of Cinderella have been collected from all over the world, and it has been translated into almost every language. In addition, it is the most popular pantomime on the British stage.

Because the moon lacks an atmosphere, there is no wind or water to erode or wash away the Apollo astronauts' imprint. That implies their footprints, roverprints, spacecraft prints, and waste stuff will be maintained for a very long period on the moon. They will not, however, remain there indefinitely. The moon is still a changing environment. It is regularly pummelling with "micrometeorites," which indicates that erosion is still occurring on the moon, although slowly.