Quick Facts #1

Photo by Ahmed Zayan / Unsplash

Hello! I've been consuming quick scientific facts since childhood, and I have always found learning about random things fun. They have been little bites of information, they have served as conversation starters, and some have led to deep discussions. I wanted to compile a list of simple facts that anyone can consume. Here we go!

  1. There is enough DNA in the average person's body to stretch from the Sun to Pluto and back 17 times.
  2. In an entire lifetime, the average person walks the equivalent of five times around the world.
  3. Killer whales (Orcas) are actually dolphins.
  4. You can't taste food without saliva — For food to have a taste, chemicals from the food must first dissolve in saliva. Only once they've been dissolved in a liquid can receptors detect the chemicals on taste buds.
  5. Octopuses have three hearts, nine brains, and blue blood.
  6. Hot water freezes faster than cold water.
  7. A cloud can weigh around a million pounds.
  8. Bananas are radioactive — Bananas contain potassium, and since potassium decays, that makes the yellow fruit slightly radioactive. But don't worry—you'd need to eat ten million bananas in one sitting to die of banana-induced radiation poisoning.
  9. Water can exist in three states at once — This is called the triple boil— or triple point — and it is a specific temperature and pressure where materials exist simultaneously as a gas, a liquid, and a solid.
  10. It's impossible to burp in space.
  11. The human eye has a 576-megapixel resolution — When our eyes send visual signals to the brain, it has enough capacity to process images in 576 megapixels. However, we only see at about 150 dpi (dots per inch) since that is more than enough visual stimuli for us to see objects.
  12. 2 is the only even prime number.
  13. Helium changes our voice because of its density — Helium is much less dense than oxygen. Typically, we breathe in nitrogen and oxygen. Since helium is less dense than oxygen, the sound of our voice travels faster through our vocal cords. Therefore, helium makes our voice sound weird because the sound is traveling over two times faster than usual.
  14. Tooth enamel is stronger than bones. — The lining of our teeth is the hardest substance in the human body.
  15. Humans didn't evolve from monkeys. Humans and monkeys evolved from a common ancestor.
  16. It is scientifically possible to die from drinking too much water.
  17. Stomach acid can dissolve razor blades.
  18. The PH level in the stomach is so high that it can dissolve metal. However, plastic would come out unscathed.
  19. Inertia keeps you from falling out of a rollercoaster — Your mass resists the acceleration of intense loops and keeps you on your seat.
  20. Thomas Edison didn't invent the lightbulb. However, he was able to create a fully functional one in 1879. Earlier versions made by Warren de La Rue and Joseph Swan had the lightbulb concept down, but their inventions were not suited for practical use.

Thanks for reading! Peace out.

Vivek Arvind

Vivek Arvind

Santa Clara, CA