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Is humid air heavier than dry air?
science.howstuffworks.com/nature/climate-weather/atmospheric/is-humid-air-heavier-than-dry-air.htm
If humid air is just air plus water, then it has to be heavier than dry air, right? Sure, if it was only a matter of simple addition, but molecular physics is a lot like a bouncer at a club: Nothing gets in unless something else goes out.
How many MOOC students finish their courses?
people.howstuffworks.com/how-many-mooc-students-finish-courses.htm
Massive open online courses are extremely popular nowadays. Learn how many MOOC students finish their courses at HowStuffWorks.
Can pressing your upper lip stifle a sneeze?
health.howstuffworks.com/human-body/systems/nose-throat/can-pressing-upper-lip-stifle-sneeze.htm
The urge to sneeze can come upon you at the worst times. Find out if pressing your upper lip can stifle a sneeze at HowStuffWorks.
Is American Wheat Different Than European Wheat?
recipes.howstuffworks.com/is-american-wheat-different-than-european-wheat.htm
There are different types of wheat, but are they separated based on region. Learn if American wheat is different from European wheat at HowStuffWorks.
Frances Perkins: The Unsung Creator of U.S. Social Security
history.howstuffworks.com/historical-figures/frances-perkins.htm
FDR'sS secretary of labor was responsible for the social 'safety net' programs that kept Americans afloat during the dark days of the Depression.
10 Whistleblowers and the Horrors They Exposed
people.howstuffworks.com/10-whistleblowers-and-the-horrors-they-exposed.htm
When people leak knowledge of illicit or immoral activities, they're thrust onto the world stage. Here are 10 whistleblowers who made big waves.
How the NSA Works
people.howstuffworks.com/nsa.htm
Do you know how the NSA works? Find out how the NSA works at HowStuffWorks.
6 Startling Revelations From Declassified U.S. Government Documents
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Declassified government documents can change our view of history, and also sometimes contain surprising revelations. Here are six to discover.
The History and Symbolism of the U.S. Presidential Seal
people.howstuffworks.com/culture-traditions/national-traditions/presidential-seal.htm
Do you know the history and significance of the presidential seal? HowStuffWorks takes a look.
In the Caribbean, It's Not Christmas Without Black Cake
recipes.howstuffworks.com/black-cake.htm
Even if you think you hate fruitcake, a taste of Caribbean black cake could go a long way toward changing your mind. Let's dive into its rich and delicious history.