Why do ice cubes stick together in a glass?
Pressure causes ice to melt. Actually, this is what causes an iceberg/glacier to move. The tremendous weight of the glacier causes the ice on the very bottom to melt, creating a layer of water on which the glacier glides.
When two ice cubes in a glass of water touch for a prolonged period of time, the slight pressure of one against the other causes a little bit of ice at the point of contact to melt. The melted water then flows away from the point of contact and immediately refreezes. This refrozen water forms sort of a “weld” which causes ice cubes to stick together.
Can body language tell you if someone is lying?
Everybody conveys feelings through body language, even though most of us aren’t usually aware of what we are “saying.” If you’re holding the wrist of one arm with the opposite hand, for example, it’s usually a sign that you are anxious, maybe insecure. You wouldn’t want to be conscious of this kind of thing all the time because it could drive you to distraction.
Sometimes it’s useful. For instance, although body language cannot tell you for certain someone is lying, it can tell you they’re not altogether comfortable with what they’re saying. That alerts you to listen extra critically. The signs include fidgeting, scratching their head, rubbing an eye, their nose, or their neck while speaking to you.
Nutmeg is extremely poisonous if injected intravenously.
The most common name in the world is Mohammed.
Second hand tobacco smoke is the third leading preventable cause of death, after active tobacco smoking and alcohol use. Environmental tobacco smoke, as it is also called, contributes to more than 50,000 deaths per year in the U.S. alone.
In America in 1977, the punishment for smuggling marijuana was 15 years less than the punishment for smuggling coffee.
1 in 8 people in have been employed by McDonald’s in the US.
Cat’s urine glows under a black light.
The first Ford cars had Dodge engines.
Leonardo Da Vinci invented the scissors.
It takes about a half a gallon of water to cook macaroni, and about a gallon to clean the pot.
Babies are born without knee caps. They don’t appear until the child reaches 2-6 years of age.
The Boston University Bridge (on Commonwealth Avenue, Boston, Massachusetts) is one of the few places in the world where a boat can sail under a train driving under a car driving under an airplane.
Cats have over one hundred vocal sounds, dogs only have about ten.
Our eyes are always the same size from birth, but our nose and ears never stop growing.
David Prowse was the guy in the Darth Vader suit in Star Wars. He spoke all of Vader’s lines, and didn’t know that he was going to be dubbed over by James Earl Jones until he saw the screening of the movie.
Many hamsters only blink one eye at a time.
If you keep a Goldfish in a dark room, it will eventually turn white.
Women blink nearly twice as much as men.
Right-handed people live, on average, nine years longer than left-handed people do.
If the population of China walked past you in single file, the line would never end because of the rate of reproduction.
A snail can sleep for 3 years.
The written test for University of Texas at Austin campus police in the 1960’s asked applicants the shape of their excrement to test their ability to be observant. Maybe that’s how they missed Charles Whitman.
The average cat food meal is the equivalent to about five mice.
The drink ‘7UP’ used to contain lithium (an anti-depressant).
Sheep prefer to drink running water.
A seagull drinks salt water because it has special glands that filter out the salt.