Mga Post

Myths of World "Friction Heat"

Imahe
Friction Heat The Myth:  Meteors are heated by friction when entering the atmosphere When a meteoroid enters the atmosphere of the earth (becoming a meteor), it is actually the speed compressing the air in front of the object that causes it to heat up. It is the pressure on the air that generates a heat intense enough to make the rock so hot that is glows brilliantly for our viewing pleasure (if we are lucky enough to be looking in the sky at the right time). We should also dispel the myth about meteors being hot when they hit the earth – becoming meteorites. Meteorites are almost always cold when they hit – and in fact they are often found covered in frost. This is because they are so cold from their journey through space that the entry heat is not sufficient to do more than burn off the outer layers.

Myths of World "Dark side of the Moon"

Imahe
Dark side of the Moon The Myth:  There is a dark side of the moon Actually – every part of the moon is illuminated at sometime by the sun. This misconception has come about because there is a side of the moon which is never visible to the earth. This is due to tidal locking; this is due to the fact that Earth’s gravitational pull on the moon is so immense that it can only show one face to us. Wikipedia puts it rather smartly thus: “Tidal locking occurs when the gravitational gradient makes one side of an astronomical body always face another; for example, one side of the Earth’s Moon always faces the Earth. A tidally locked body takes just as long to rotate around its own axis as it does to revolve around its partner. This synchronous rotation causes one hemisphere constantly to face the partner body.”

Myths of World "Brightest Star"

Imahe
8 Brightest Star The Myth:  Polaris is the brightest star in the northern hemisphere night sky Sirius is actually brighter with a magnitude of ?1.47 compared to Polaris’ 1.97 (the lower the number the brighter the star). The importance of Polaris is that its position in the sky marks North – and for that reason it is also called the “North Star”. Polaris is the brightest star in the constellation Ursa Minor and, interestingly, is only the  current  North Star as pole stars change over time because stars exhibit a slow continuous drift with respect to the Earth’s axis.

Myths of Worlds "Humans Pop In Space"

Imahe
Humans Pop In Space The Myth:  When exposed to the vacuum of space, the human body pops This myth is the result of science fiction movies which use it to add excitement or drama to the plot. In fact, a human can survive for 15 – 30 seconds in outer space as long as they breathe out before the exposure (this prevents the lungs from bursting and sending air into the bloodstream). After 15 or so seconds, the lack of oxygen causes unconsciousness which eventually leads to death by asphyxiation.

Myths of world "Evolutionary Improvements"

Imahe
Evolutionary Improvements The Myth:  Evolution causes something to go from “lower” to “higher” While it is a fact that natural selection weeds out unhealthy genes from the gene pool, there are many cases where an imperfect organism has survived. Some examples of this are fungi, sharks, crayfish, and mosses – these have all remained essentially the same over a great period of time. These organisms are all sufficiently adapted to their environment to survive without improvement. Other taxa have changed a lot, but not necessarily for the better. Some creatures have had their environments changed and their adaptations may not be as well suited to their new situation. Fitness is linked to their environment, not to progress.

Quotes About Life

“I have seen the best of you, and the worst of you, and I choose both.”                    ― Sarah Kay “Be the one who nurtures and builds. Be the one who has an understanding and a forgiving heart one who looks for the best in people. Leave people better than you found them.” ― Marvin J. Ashtond ''It is not enough that we do our best; sometimes we must do what                                       required                      ― Winston S. Churchill “Do your best and let God do the rest.” ― Ben Carson “You've gotta dance like there's nobody watching, Love like you'll never be hurt, Sing like there's nobody listening, And live like it's heaven on earth.”                      ― William W. Purkey “You only live once, but if you do it right, once is enough.” ― Mae West “In three words I can sum up everything I've learned about life: it goes on.” ― Robert Frost “To live is the rarest thing in the world. Most people exist, that is all.” ― Oscar Wilde “It

Quotes About Happiness

“Don't cry because it's over, smile because it happened.” ― Dr. Seuss “For every minute you are angry you lose sixty seconds of happiness.” ― Ralph Waldo Emerson “Love is that condition in which the happiness of another person is essential to your own.” ― Robert A. Heinlein, Stranger in a Strange Land “Folks are usually about as happy as they make their minds up to be.” ― Abraham Lincoln “It's so hard to forget pain, but it's even harder to remember sweetness. We have no scar to show for happiness. We learn so little from peace.” ― Chuck Palahniuk, Diary “Happiness in intelligent people is the rarest thing I know.” ― Ernest Hemingway, The Garden of Eden “Happiness is when what you think, what you say, and what you do are in harmony.” ― Mahatma Gandhi “You will never be happy if you continue to search for what happiness consists of. You will never live if you are looking for the meaning of life.” ― Albert Camus “There's nothing like deep breaths after laughing that h