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79Why Does Electrocution Hurt?
Electricity really hurts. It can sometimes save your life. Engineers have figured out how to increase your survival rate of electrocution. I bet you didn't know this stuff.
15 comments
79Angles of the Rising Sun
Predicting and knowing the angles of the sunrise. Latitude determines the angle relative to the horizon while the season and latitude combined determine the angle relative to East.
1 comment
76Doppler Effect of Real Time
why does speeding up a tape make it sound high-pitched? Why does an approaching siren whine higher than a departing one? How does slow motion work?
3 comments
76Smart People Don't JUST Enlist
This hub is intended to give answers to some, and to encourage others to seek even more answers. What drives a civilian to join the armed services? What things should they expect? Where to look to find examples. And apparently the comment string is quite the topic of debate.
16 comments
88Refractor Vs. Reflector Telescopes
Want to know why a the Hubble is a refractor telescope? What difference it makes?
23 comments
88Why Add the Acid to the Water?
Some questioners wonder why you should always add the acid to the water and not the other way around. Find out here. There are also some analogies to other related phenomenon.
2 comments
76How Space Objects Appear to Move Vs Actual Movement
Objects move differently than they appear. Read on to see how.
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74How We Evolve and Why We Die
Just a couple theories on death and evolution that are food for thought - and a conspiracy theory to spice it up a bit. Is it necessary for us to die? Would we be holding the species back by trying to live longer?
3 comments
80Atoms and Molecules
Struggling to understand the difference between elements, atoms, and molecules? Drop in to get an easy-to-understand explanation.
8 comments
78Honk if You Understand Adiabatics
I didn't hear this word until my third year of chemistry. It's an incredibly simple concept with many intricate properties.
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