The video discusses various everyday objects and features that have hidden purposes or secrets. These include:
1. Toothbrushes with a hidden indicator that signals when the brush has reached its expiry date.
2. Toothpaste colors that have specific meanings, such as blue for freshness and white for cleaning.
3. A hidden code on toothpaste tubes that indicates whether the product is made from natural ingredients or chemicals.
4. Escalator brushes that are designed to clean shoes, not just for aesthetics.
5. Quarter-inch heels on shoes that were originally designed for functionality, not fashion.
6. A small hole in hotel locks that serves as a drain to prevent water from accumulating.
7. A feature on some microwave ovens that allows users to mute the beeping sound by pressing a specific button.
8. A function on some cars that allows users to roll down all windows by pressing the unlock button twice.
9. Toilet doors that are designed to be slightly ajar to discourage users from opening them fully.
10. Mirrors installed above staircases in high-rise buildings that serve as a safety feature to prevent smoke from spreading in case of a fire.
The video aims to educate viewers on the hidden purposes and secrets behind everyday objects and features.
Here are the facts extracted from the text:
1. Some toothbrushes have a feature that indicates when they need to be replaced.
2. Toothpaste tubes often have a hidden mark at the bottom that indicates the type of material used to make it.
3. The mark on the toothpaste tube can be a red, green, or black square.
4. The black square on a toothpaste tube indicates that it is made from 100% chemicals.
5. The green square on a toothpaste tube indicates that it is made from natural ingredients.
6. Some microwaves have a mute function that can be activated by long-pressing a button.
7. The mute function on a microwave is often activated by pressing the "1" button for a few seconds.
8. Some cars have a feature that allows the windows to roll down automatically when the car is unlocked.
9. This feature can be activated by long-pressing the unlock button on the car's remote control.
10. Some toilet doors are designed to open only partially to prevent people from entering the stall completely.
11. The design of toilet doors is intended to make people feel uncomfortable and avoid using the toilet for extended periods.
12. Some buildings have mirrors installed above staircases and landings for safety and security purposes.
13. These mirrors are designed to help prevent the spread of smoke in the event of a fire.
14. The mirrors can also help people navigate through the building and escape during an emergency.
Note: I excluded any information that seemed to be opinion-based or promotional, and focused on extracting factual information from the text.