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Why Are Blue Whales Going Silent?
animals.howstuffworks.com/mammals/blue-whales-going-silent.htm
The pattern of blue whales going silent has become a troubling in the Pacific Ocean, and scientists are paying close attention. Recordings show strong seasonal and year-to-year variation in blue whale vocalizations—including periods with lower detected calling—and scientists are concerned.
10 Ways Americans and Europeans Differ
HowStuffWorks looks at come of the cultural differences between Europe and America, like ice consumption, metric system and portion sizes.
How Wildfires Work
science.howstuffworks.com/nature/natural-disasters/wildfire.htm
Wildfires burn about five million acres in the U.S. every year. Learn about the causes of wildfires, how wildfires behave and how firefighters fight them.
How Firewalls Work
computer.howstuffworks.com/firewall.htm
Firewalls have helped protect computers in large companies for years. Now, they're a critical component of home networks, as well. See how firewalls work.
Top 5 Ancient Incan Inventions
science.howstuffworks.com/innovation/inventions/5-ancient-incan-inventions.htm
The Incan empire had a highly developed organizational system and a near limitless workforce that helped create a culture of wonders. So what are some of their inventions that we know about today?
10 Connections Between Physics and Music
entertainment.howstuffworks.com/10-connections-physics-music.htm
Sound waves carry music to our ears, but they also carry the principles of physics. Find out how physics and music are intertwined.
Can You Guess Which of These Two American Cities Is Furthest North?
play.howstuffworks.com/quiz/can-you-guess-which-of-these-two-american-cities-is-furthest-north
From Florida to Maine or California to Alaska, the United States is a vast country with plenty of interesting cities to explore. But do you know which cities are located north or south of others? Take a trip through this quiz to find out!
Can You Tell What Countries These International Border Crossings Are In?
play.howstuffworks.com/quiz/can-you-tell-what-countries-these-international-border-crossings-are-in
Borders delineate the shapes of nations and the limits of their reach, culturally, militarily and in terms of natural resources. Border crossings have been flashpoints throughout history. Could you recognize them if you saw them?
Emergency Vehicles: Can You Identify More Than 30?
play.howstuffworks.com/quiz/emergency-vehicles-can-you-identify-more-than-30
We all know about fire trucks, police cars and ambulances, but what about the other emergency vehicles? Put your wits to the test and see if you can name more than 30 of these emergency vehicles.
How Holographic Environments Will Work
electronics.howstuffworks.com/gadgets/high-tech-gadgets/holographic-environment.htm
Holographic environments make the virtual world truly tangible. Find out about the development of real-life, interactive holodecks!