Scientific American's Ask the Experts: Answers to The Most Puzzling and Mind-Blowing Science Questions
Harper Collins, 2009 M03 17 - 288 páginas
Why is the night sky dark? How do dolphins sleep without drowning? Why do hangovers occur? Will time travel ever be a reality? What makes a knuckleball appear to flutter? Why are craters always round?
There's only one source to turn to for the answers to the most puzzling and thought-provoking questions about the world of science: Scientific American. Writing in a fun and accessible style, an esteemed team of scientists and educators will lead you on a wild ride from the far reaches of the universe to the natural world right in your own backyard. Along the way, you'll discover solutions to some of life's quirkiest conundrums, such as why cats purr, how frogs survive winter without freezing, why snowflakes are symmetrical, and much more. Even if you haven't picked up a science book since your school days, these tantalizing Q & A's will shed new light on the world around you, inside you, below you, above you, and beyond!
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I want to know science behind this procedure-
take a metal cap(coke bottle), remove the plastic cover,
now add some wax in it,
heat the cap, until the wax melt, starts boiling & finally catchs fire,
which lights same as candle, then stay away & trow some(5-10ml) water above the cap over the fire,
u will see the fire blasting from that 3cm size to around 1000times more
What is a blue moon?
Why and how do planets rotate?
Why do stars twinkle?
Does the fact that the universe is continually
The Grass Is Always Greener
Why do we get the ﬂu more often in the winter
Is there any proof that Alzheimers disease is related
What determines whether a substance is transparent?
Why does bruised fruit turn brown?
How is caffeine removed to produce decaffeinated coffee?
Do vitamins in pills differ from those in food?
Theres No Place
What is the meaning of the phrase It is too cold
How can sea mammals drink saltwater?
How do deepdiving sea creatures withstand
Why do cats purr?
Do unbred animals lack the individual distinctiveness
What do we know about the evolution of sleep?
How close are we to being able to clone a dinosaur?
Can the human race be devolving?
Do humans have some kind of homing
Do people lose their senses of smell and taste
Why does your stomach growl when you are hungry?
If the cells of our skin are replaced regularly
Why does reading in a moving car cause
Where do geysers get their water from?
What is quicksand?
Much Ado About Nothing
How does a laser measure the speed of a car?
How do rewritable CDs work?
Let There Be Light
What are booming sands and what
Is dark matter theory or fact?
Does the speed of light ever change?
Why does shaking a can of coffee cause
Why does a ball go farther when hit with