Discover 10 technology secrets hidden under the guise of extremely ordinary things

Here are 10 technology secrets hidden in the guise of extremely ordinary details, invite you to explore.

1. Numbers on vegetable labels

The numbers on fruit and vegetable labels not only help us know which countries they are from, but also tell us how to grow them.

Specifically, if you find a 5-digit number starting with an 8 on a vegetable sticker, the product has been genetically modified. The 5-digit code begins 9, the product is grown organically. Products grown in the usual way will have a 4-digit number, starting with 3 or 4.

2. Nintendo game box has a bitter taste

Nintendo's games are extremely popular and sometimes children try to taste them or even eat them. To prevent this, Nintendo decided to add some harmless chemicals to create an unpleasant bitter taste in their mouths on their game cases.

3. Brush on the escalator

Many people believe that the brush on the escalator is to help clean shoes for people standing on it. However, the fact that this brush is used to remind people that they are too close to the edge of the escalator, back away from this area to avoid clothes or shoes can get stuck, dangerous.

4. Dents on golf balls

The dents on the golf ball help it to fly further. Details invite you to follow in the article 'Did you know, why golf balls have dents shaped honeycomb?'

5. Google Assistant can be controlled with spells

If you open the Google assistant on your Android phone and say the "Lumos Maxima" spell, the flashlight on the phone will automatically turn on. To turn off the light, say "Nox". If you want to turn off all notifications and ring tones on your phone, say "Silencio".

6. The colorful circles on the bottom of the chip bag

These mysterious circles, called printer blocks, help the product packaging cutter know the exact location to cut. Manufacturers also rely on them to know if everything is printed correctly.

7. Open cap icon on cosmetics

On cosmetics, makeup often appears as an open box icon with the words 12M or 24M inside. This is the icon after the open time to indicate the expiry date. The number in 12M or 24M represents the number of months (month).

8. Shake to undo the action on iPhone

If you make a typo in the text or accidentally delete an important note when using the note app on iPhone. For quick and easy undo, shake your phone.

If this feature does not work, activate it by going to Settings -> Accessibility -> Shake to Undo.

9. Circle on the 3.5mm jack

There may be one, two or three metal rings on the end of the 3.5mm jack for the purpose of separating electrical impulses received from the device for information transmission.

1. 1 loop: The headphone jack can only provide mono audio signals.
2. 2 loops: Both sides receive the exact same information.
3. 3 loops: The left and right headphones make a slightly different sound.

10. The effect of hanging hooks made from wood

In addition to being more durable than plastic and suitable for heavy coats, wooden hangers also have many other effects that not everyone knows, such as helping to absorb unnecessary moisture and eliminate unpleasant odors. In particular, cedar wooden hangers, can help fight moths in the closet.