Educational
Get flash to fully experience Pearltrees
The ABC's of Nuclear Science
The ABC's of Nuclear Science is a brief introduction to Nuclear Science. We look at Antimatter, Beta rays, Cosmic connection and much more. Visit here and learn about radioactivity - alpha, beta and gamma decay. Find out the difference between fission and fusion. Learn about the structure of the atomic nucleus.
Why Can't I Own a Canadian?
October 2002 Dr. Laura Schlessinger is a radio personality who dispenses advice to people who call in to her radio show.
The Top 9 Most Inhospitable Places in the World
We tend to take our surroundings for granted. You're probably reading this in relative comfort - you don't need to wear breathing apparatus, you're within a few steps of a cold drink and you aren't at the beck and call of a totalitarian regime bent on oppressing its population. The Tripbase team have drawn up a list of the most horrendous places to live, in order from dreadful to impossible.This course is designed to provide the non-science concentrator with the building blocks needed to better understand how general biological processes work. The course is very interactive and driven by questions that students may face in their everyday lives, specifically addressing popular misconceptions about a wide range of topics. Among the questions covered: How do vaccines work? What is antibiotic resistance?
Debunking Biology Myths
While not an economist in the traditional sense, I am very interested in the study of economics. While not everyone shares this level of interest, I believe people should have an understanding of economics as the field is so important to understanding the world that we live in. Though this list contains ideas that are controversial, it is not intended to promote anger or controversy. Rather, these entries were chosen to shed some light on lesser known, yet important economic issues facing our world, and give readers something to ponder. Please give your opinions on these issues in the comments.
10 Lesser Known Economic Issues
War is awful. But you know what else sucks? Constant tension of war, injustices done by those who need to be overthrown, and threats by politicians who deserve to be kicked in the groin. We won’t get into the reasons behind the U.S. invading Iraq and Afghanistan.
Ten Future Wars That Will Happen in Our Lifetime
The Question (Submitted June 03, 1997) How would the unprotected human body react to the vacuum of outer space? Would it inflate to bursting? or would it not? or would just the interior gases hyperinflate?
Human Body in a Vacuum
My mother taught me TO APPRECIATE A JOB WELL DONE... "If you're going kill each other, do it outside - I just finished cleaning!" My mother taught me RELIGION... "You better pray that will come out of the carpet." My mother taught me about TIME TRAVEL... "If you don't straighten up, I'm going to knock you into the middle of next week!"
Things My Mother Taught Me -- A Mom-to-Mom Email
Shows the hours of daylight received during the year for an observer at a given latitude. This is an important factor contributing to the seasons. Running this animation on your computer... right-click to download daylighthoursexplorer.swf and daylighthoursexplorer.html to the same directory open the html file in a browser to run the animation Linking to this animation...
Daylight Hours Explorer
9 October 2011 Last updated at 13:14 ET By James Gallagher Health reporter, BBC News "Don't worry, everything will be fine," says the brain One reason optimists retain a positive outlook even in the face of evidence to the contrary has been discovered, say researchers. A study, published in Nature Neuroscience , suggests the brain is very good at processing good news about the future.
Brain 'rejects negative thoughts'
From prokaryotes to eukaryotes
From prokaryotes to eukaryotes The complex eukaryotic cell ushered in a whole new era for life on Earth, because these cells evolved into multicellular organisms. But how did the eukaryotic cell itself evolve? How did a humble bacterium make this evolutionary leap from a simple prokaryotic cell to a more complex eukaryotic cell?Brian Greene: The universe on a string
I now use the way this man explains gravity to help kids understand it in my school. Fantastic talks, TED is one of those sites that is important to the world! Thank you! by Oct 5
Description Overview of modern scientific cosmology, including discussion of stars, the Milky Way galaxy, black holes, dark matter, the big bang, and evidence for our current understanding of the universe. Customer Reviews