Fact about wifi

1. Full form of "wifi": 

"wifi" is the short form of wireless fidelity

2. "WiFi" can travel much longer than our think:

You might think that because you can't get stable internet access in your room, that WiFi-only travels over a few meters. While many WiFi networks are typically for home use, and commonly have a range of around 30m, special WiFi networks can reach more than 275 km in distance. This is done by network technicians creating special WiFi range extenders.

3. "WiFi" was previously known as WaveLAN:

FlankSpeed, DragonFly, WECA and IEEE 802.11b Direct Sequence before the more consumer-friendly name of WiFi was adopted.

WaveLAN

4.WiFi network can be affected by microwaves:

Ever wonder why your YouTube video of People Falling Over or Cats Falling Over slows to a stop when heating up that week-old Chinese takeout? Microwave ovens release an enormous amount of energy when in use, which can interfere with your WiFi signal. Microwave ovens produce about 1,000 watts, which is 10,000 times more than the signal your WiFi gives off. Usually, this is contained by the outside of the microwave, but it only takes a tiny leak for it to disrupt your entertainment.

5.WiFi is the most safer network:

And lastly, there is a common misconception that WiFi signals can be hazardous over time and need to be shut off overnight. Through our day-to-day lives, we are all swimming in all sorts of waves, from radio waves to mobile phones. In fact, WiFi signals are much safer than mobile phones. There has been no scientific evidence of reported illnesses attributed to WiFi signals.