Want to make a glass of water freeze instantly on command?
Want to make a glass of water freeze instantly on command? What is this supernatural power and who can use it? Discover the secrets to Ice-bending … in real life.
Tag: Science
How a Lightning Rod Works
The lightning rod, which Benjamin Franklin invented in 1749, is a metal pole mounted atop a building that draws lightning’s electrical charge away from the structure.
The rod is attached to an aluminum or copper cable that’s connected to an underground conductive grid. This allows the electricity to dissipate harmlessly.
Because lightning tends to strike the tallest object in the vicinity, lightning rods must be taller than any buildings or other objects in the area.
If installed properly, a lightning rod will carry a lightning bolt’s electrical charge through the path of least resistance along the cable into the ground, reducing the risk of fire or heat damage from the strike.
What Are Tonsils Good For?
Now you know!
Getting your tonsils removed used to be a common childhood ritual — and a great excuse to eat ice cream.
It turns out, however, that tonsils play an important role in preventing future infections.
Tonsils are twin round lumps sitting in the back of the throat, while adenoids – which, like tonsils, are part of the lymphatic system – sit behind the nose and the roof of the mouth.
Together, tonsils and adenoids prevent infection by stopping germs from entering through the mouth and nose.
How To Of The Day: How To Change A Light Bulb
Mehdi Sadaghdar shows us the do’s and don’ts of changing a light bulb.
Enjoy!
You can’t even change a light bulb?! But it’s so simple, just watch the video…
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