Author: Abulaala Ashraf

The oxygen on Earth keeps this from happening. On the outside of all
metal there’s a layer of oxidized metal that prevents metal from
sticking together.

In space, there is no oxidation layer. When pieces of metal come into
contact with each other in space, they stick together to become one
continuous piece of metal.

The word ”buffalo” in the sentence has three meanings: the animal, the
city in New York and the act of ”buffaloing” which is another word
for teasing or bullying. Here is another way of looking at the sentence:
THE buffalo FROM Buffalo WHO ARE buffaloed BY buffalo FROM Buffalo ALSO
buffalo THE buffalo FROM Buffalo.”

Another grammatical puzzle is ”James while John had had had had had had had had had had had a better effect on the teacher.”

It’s one of the more bewildering baby behaviors you’ll see: Your baby
scrunches up her tiny features and wails deafeningly  — but not a tear
trickles down her cheek.

Newborns don’t shed tears because their tear ducts haven’t fully
formed. But after about a month (once the ducts have had a chance to
develop), why do babies sometimes cry with tears and sometimes without?

In general, tears indicate that your baby’s feeling especially
frustrated or is in some kind of pain, explains Jennifer Shu, M.D.,
coauthor of Heading Home With Your Newborn.

“Babies cry for many reasons  — they’re tired, uncomfortable, bored,
hungry. It’s their only way to communicate their myriad emotions,” says
Dr. Shu. So no tears probably means your baby’s trying to tell you
something, but she’s most likely not in distress.

In some cases, tearless crying can be a sign of something more
serious, like dehydration. If you notice that your baby’s perpetually
dry-eyed, make sure she’s drinking enough fluids. If the problem
persists, her tear ducts may be blocked, a condition that should clear
up on its own within a few months; your pediatrician may recommend you
help it along by gently massaging the inside corners of your baby’s
eyes.

This is known as the Dunning-Kruger effect. The basic idea behind it has
been a well-established rule for centuries. Charles Darwin, for
instance, has stated “Ignorance more frequently begets confidence than
does knowledge”. It has been empirically proven in 1999, by
psychologists David Dunning and Justin Kruger in their report “Unskilled
and Unaware of It: How Difficulties in Recognizing One’s Own
Incompetence Lead to Inflated Self-Assessments”.

This was proven through a study in which participants take tests of
their logical reasoning skills, grammatical skills, and humor, and then
estimate their own abilities in those subjects. Those participants who
scored in the bottom quartile grossly overestimated their own abilities.
Those in the12th percentile had estimated themselves to be in the 62nd
percentile.

Overall, Dunning and Kruger found that incompetent people overestimate
their own skill level, fail to recognize the skill of other people and
fail to recognize their own inadequacy. Also, as they receive training
to improve their skills, incompetent people tend become more aware of
their own inabilities.

Penguin females have been observed trading sex for stones! These stones
are valuable to females because they are necessary for building nests.
Male penguins are known for being monogamous, so it is these females
that venture off to make some rocks by making some beds rock!

They typically target single males in order to avoid unnecessary
complications, however scientists believe the intercourse is not merely
for the stones because females would need to copulate with hundreds of
males in order to build a decent nest (they only take 1-2 stones each
time, and a nest requires hundreds!)

Scientists theorize that the females may be testing future mates in case their current partners happened to die.