Why is pizza round but the box is square?

By mbrooks on April 11, 2019
Science is why the pizza is round. (Photo by Shannon O’Hara/Getty Images for Pizza Hut)

There are plenty of things that we wonder about that we don’t have an explanation for. We know there is an answer, but we either never looked it up, or we did look it up but the answer didn’t make much sense.

Here are a few common questions that we may not remember learning the answer for in school.

Why is the pizza box square but the pizza is round?

A round pizza box would make pizza more expensive. Who wants that? (Photo by Joe Raedle/Getty Images)

Pizza as we know it was created in Italy, the traditional home of pizza. The dough was stretched by tossing into the air and spun. The centrifugal force is responsible for putting the dough into a circular shape. As for the box, square boxes are cheaper to make. Round pizza boxes do exist, though they haven’t widely caught on.

Why is the tomato a fruit?

The classifications of a fruit and a vegetable are why tomatoes are considered a fruit. Vegetables are the edible parts of a plant, such as the leaves, the stems, the stalks, and the tubers. Fruits are the fruit of a plant, created from the ovary of a plant, and contain seeds. Apples and tomatoes contain seeds. Celery and broccoli do not.

Why is my eye twitching?

(Photo by Mark Mainz/Getty Images)

The spasm of an eyelid can have multiple causes. Eyelids can twitch due to caffeine, stress, or fatigue. Getting more sleep, drinking less caffeine and lubricating eye drops can help. Nervous disorders can also be behind the twitching. Twitching that persists should be seen by a doctor, according to Healthline.

Why do vaccines contain eggs, formaldehyde, and mercury?

The ingredients in a vaccine may seem scary because the reasons for their presence is not widely understood. Egg proteins are used in the manufacture of vaccines, particularly the flu vaccine. The egg protein in a vaccine has been shown to not present harm to those with even a severe allergy to egg. No special precautions are necessary for those with an allergy to eggs, according to The Joint Task Force on Practice Parameters of the American Academy of Allergy Asthma and Immunology, the American College of Allergy Asthma and Immunology, and the American Academy of Pediatrics. The CDC does warn that any person who had a severe allergic reaction to the flu vaccine should not get that vaccine again.

(Photo by David Greedy/Getty Images)

Vaccines contain mercury as a preservative. This answer deserves a deeper look. Mercury occurs naturally on the earth. Methylmercury is toxic to human. But that’s not what is found in vaccines. Ethylmercury is what’s used in vaccines and it is not as harmful to humans because it passes through the body more quickly than methylmercury.

Formaldehyde is a natural product of human metabolism. In large quantities, formaldehyde can pose a health danger. The amount of formaldehyde used in vaccines is diluted to safe levels for humans, even safe enough for babies. An average-sized two-month old naturally has about 1.1 milligrams of formaldehyde in the body. This is about 1,500 times more formaldehyde than is contained in a vaccine, according to the Children’s Hospital of Philadelphia.

Why is the ocean so salty?

Drinking salty water will not quench your thirst. It will make you more thirsty. (Photo by Ainhoa Sanchez/Volvo Ocean Race via Getty Images)

Rocks are the primary source for salt in the water. Rain erodes rocks, causing sodium and chloride to move into rivers and lakes, then from there to the oceans. The saltiness of sodium and chloride build up in large concentrations in the oceans. Other particles do not  build up in large concentrations because other particles are used up be organisms and thus removed from the water.

Why can’t I drink ocean water?

Due to the high concentration of salt in ocean water the water is suitable for drinking. The human body, specifically the kidneys, cannot handle too much salt. If a person were to drink ocean water the kidneys would not be able to process the water, leaving the person still feeling thirsty. A person can literally die from dehydration from drinking ocean water.

Why is the sky blue?

The Hangzhou Bay Bridge, in China, while under construction, with a planned length of 22 miles/ (Photo by Guang Niu/Getty Images)

Light contains many colors. When light from the sun hits the tiny molecules that make up the Earth’s atmosphere the colors begin to scatter. Blue light consists of shorter, smaller waves than the other colors. This means the blue light is scattered more than the other colors.

The medical information contained herein is not a replacement for counseling by a medical professional. 

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