This is a possible summary:
The text is a transcript of a video that reveals the secrets hidden in ordinary things, such as fast food packaging, keyboards, toasters, revolving doors, and playing cards. The video uses humor, facts, and images to explain the purpose and origin of these things. The video also invites viewers to share their own secrets in the comments.
Here are some key facts extracted from the text:
1. The Bad Bath and Beyond chain uses foam to make their towel stacks look perfect.
2. The plastic thing in pizza boxes is called a saver and it prevents the lid from sticking to the cheese and toppings.
3. The answers we give to captchas help smart cars recognize road hazards and signs.
4. The horizontal steel bars on the sides of American school buses are friction rails that provide support and protection to the vehicle in case of a collision.
5. Revolving doors save energy and reduce carbon dioxide emissions by preventing the draft effect in high-rise buildings.
6. The fast food chain In-N-Out Burger has passages from the Bible printed on their packaging.
7. The hole in the back of the box for French fries can be used to hold ketchup, but it is actually intended to make it easier for employees to scoop potatoes into packaging.
8. The King of Hearts is often depicted with a sword stuck in his head due to poor copying of early playing cards that showed Charlemagne with a weapon raised above his head.
9. Wrinkled fingers and toes may act as patterns on tires or shoe soles, thereby keeping the skin moist and easier to grip with something.
10. The numbers on ketchup packets per serving indicate different bottling lines on which the bags were filled during the production process.