How to find out if your phone is wet inside
Many batteries have this special moisture indicator that looks like a little square or a circle, and it changes color from light to red if it’s wet.
Starting with the iPhone 5, Apple smartphones have this indicator in the SIM card slot. To have a good look at the moisture indicator, try using a highlighted magnifying glass or turn your iPhone around beneath a light until you see the indicator clearly.
Why there are small bumps on the F and J keys
They’re helpful when you type using the touch method with ten fingers. These keys are “anchors” — you put your index fingers on them.
How to correctly tear sticky notes from their block
If you tear sticky notes off from below, the edge rolls up and the note will get unstuck with time. To avoid this, tear it off along the sticky part.
Why you need this aperture in an iPhone
The hole on the back of your iPhone, between the camera lens and the flash, is a second microphone. It diminishes the surrounding noise and makes your speech clear of any unwanted sounds.
Why there is a pin and a hole in a garlic press
It’s not only a garlic press — it’s also a device to get rid of cherry stones. Put a berry in the hole at the end of the handle, and the pin on the other handle will press the stone out when you push it.
Why we need indentations in wine bottle bottoms
These indentations are called punts, and there are several reasons for them to exist:
- There wasn’t special equipment to make bottles before, and it was difficult to make a bottle with a flat bottom. The seam had to be “folded” into the bottle when blown. With time, it became a tradition of sorts.
- When wine needs to age for a long time, a sediment is inevitable. The punts make it accumulate around itself, preventing it from flowing into glasses with the wine.
- In the case of champagne or sparkling wine bottles, the punts help distribute the pressure inside the bottle, lowering the stress on the seam between the walls and the bottom.