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Scientists Spot Light From Behind a Black Hole for the First Time Ever
science.howstuffworks.com/light-behind-black-hole-news.htm
Scientists have observed flashes of X-rays coming from behind a supermassive black hole, consistent with Albert Einstein's prediction that extremely large objects can bend light.
Evolution by Natural Selection: Examples and Effects of Adaptation
science.howstuffworks.com/life/evolution/natural-selection.htm
Natural selection is the idea that organisms that are best suited to survive pass their traits down. Is it true that only the strong survive?
Why are humans altruistic?
science.howstuffworks.com/life/inside-the-mind/emotions/humans-altruistic.htm
Why are humans altruistic? Even when it might hurt us? See concepts and ideas on why humans are altruistic at Discovery Health.
What is the zone of proximal development?
lifestyle.howstuffworks.com/family/parenting/parenting-tips/zone-proximal.htm
What is the zone of proximal development? Visit HowStuffWorks to learn what the zone of proximal development is.
How Woolly Mammoths Worked
animals.howstuffworks.com/extinct-animals/woolly-mammoth.htm
Hop in your time machine, set the clock back a few thousand years and meet some woolly wonders. They even have a few things to teach us about the fate of modern elephants.
Lilac vs. Lavender Color Palettes and Plant Properties
home.howstuffworks.com/lilac-vs-lavender.htm
At first glance, a lilac vs. lavender comparison might seem like a trick question. Both belong to the lavender family of pale purple shades, and both bring to mind springtime blooms, calming atmospheres and fragrant flowers.
Top 5 Feminist Movements
people.howstuffworks.com/5-feminist-movements.htm
Feminist movements aren't all about bra-burning; they're serious efforts to change the way we think about gender equality. Read about five feminist movements.
What are emotions, and why do we have them?
science.howstuffworks.com/life/what-are-emotions.htm
What are emotions? What is their purpose? Read this article to learn about emotions and the reasons why we have them.
Why Does the Moon Look So Much Bigger When It Is Near the Horizon?
science.howstuffworks.com/question491.htm
Why does the moon look so much bigger when it is near the horizon than when it is high up in the sky?
How Laughter Works
science.howstuffworks.com/life/inside-the-mind/emotions/laughter.htm
In this article, we'll look at laughter -- what it is, what happens in our brains when we laugh, what makes us laugh and how it can make us healthier and happier. You'll also learn that there's a tremendous amount that no one understands yet.