What is the most interesting fact that you know and I don't, but I should?

What is the most interesting fact that you know and I don't, but I should?

 by Chris bahn

1. Hens in the wild produce only an average of 12 eggs per year, compared with the 200–300 with various breeds of domestic ones. There are some specialized breeds that can produce up to 600 eggs per year.
2. The moon and planets orbit faster when they are closest to their parent body ( e.g, the moon and Earth or Earth and the Sun.)
3. Aphids are born pregnant and [almost always] reproduce asexually by parthenogenesis. In the fall, there are male aphids and they mate and reproduce sexually and lay eggs that overwinter.

4. If you launch cards in the right way, you can make them slice fruit and pierce wood and you can launch them up to 100 miles per hour. You might have seen this before in circuses.

5. The size of a black hole’s event horizon is directly proportional to its mass.

6. The bubonic plague (Black Death) killed 200 million people over several decades and a few hundred people per year still contract the disease. Don’t worry, the numbers are not increasing and almost all the cases are located in Africa and a much smaller amount in South America.

7. The most cans of broth are sold in January.

8. Speaking about January, the risk of dying in that month is 20% greater than in August. You may have noticed that funeral homes are busier in the northern winter. The opposite is true in the Southern Hemisphere. (USA stats)

9. The average dandelion produces 180 seeds. (Some can produce up to 400 and have a “bald white disk” nearly as big as a dime. (2.5 pencil eraser diameters)

10. Lightning that is bluish symbolizes that there is hail and frozen precipitation in the cloud; reddish and pinkish lightning symbolizes ample rain; yellow lightning means that the air is hazy, polluted or dusty; white lightning symbolizes that the lightning is close and/or there is not much precipitation in the area.

11. Betelgeuse has a diameter of approximately 800 times that of the sun.

12. 1 liter of water weighs exactly 1 kilogram at its maximum density at a temperature of 4°C (39°F). At a temperature of 25°C, a liter of water weighs 0.997 kilograms.

13. There are 86,400 seconds in a day.

14. The average American will eat 3,000 peanut butter and jelly sandwiches in their lifetime.

15. Poison hemlock was previously used to execute condemned prisoners in Greece. The paralysis of the lungs associated with ingesting this plant caused them to suffocate and die.

16. You wake up after dying in a dream because your brain doesn’t know what happens after death.

17. A nickel weighs 5 grams exactly. A roll of nickels weighs 200 grams.

18. It takes 2–10 million years for tree sap to completely harden to amber.

19. The Tri-State tornado of 1925 lasted for 3.5 hours before the rotation finally ceased. This tornado had a path of 219 miles (352km) and claimed 695 lives.

20. Speaking about tornadoes, a largest tornado recorded was 2.6 miles in diameter.

In this photo, the debris is clearly visible on the sides of the tornado.