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"Did you ever wonder why a camel has a hump? If you can really tell the weather by listening to the chirp of a cricket? Or why our joints make popping sounds? These questions deal with everyday phenomena that we often take for granted, but each can be explained scientifically. Everyday Mysteries will help you get the answers to these and many other of life's most interesting questions through scientific inquiry. In addition, we will introduce you to the Library of Congress' rich collections in science and technology. All of the questions presented on this Web site were asked by researchers and answered by librarians from the Library's Science Reference Services. "

"Oh Twitter… How misunderstood you are. You are the semi-colon of social media - people have an idea of your existence but many have not fully grasped your usefulness and beauty. I love twitter and find it immensely valuable for a myriad of reasons: yes, it can be a time waster, however, it can also be a news source, a way to gauge public sentiment, and even a research tool."

History is boring. At least the way we typically teach history is boring. Ask anyone who's been forced to memorize a list of dates and facts and they will tell you that they would rather have open heart surgery than deal with another high school history class. It's unfortunate that so many people have such a negative introduction to such a key subject. History taught well is mind blowing and life changing. It turns out that the same history that puts 9th graders into a comma can also be made into movies that people PAY to see. History experienced instead of memorized changes our perspectives, opens our eyes and helps us avoid the mistakes of our fore-fathers. History teaches us that while people 100 years ago wore different clothes and lacked iPhones they still shared our same basic human thoughts and passions. By giving students the opportunity to see and feel the world through the past hopefully they can plan for the future. TwHistory is about helping students experience a slice of time through the eyes of another person. The aggregate of these personal experiences can then give a unique perspective of an event in history. It's dull to memorize the events of the 13 days of the Cuban Missile Crisis for a pop quiz but it gets your attention when McNamara drops the F-bomb on Twitter because the world is about to end in a big nuclear fireball. We encourage you to help your students live history. Pick an event. Pick a person. Do the research and prepare the Tweets. Then watch history unfold via the most modern of experiences - Twitter. Enjoy TwHistory and contact us if you have any questions or need help.

Do you want to save energy and money? Are you interested in learning more about your family's energy use? Are you curious about how other people save energy?If so, Power House is the program for you. You can:See graphs of your home's energy useTrack your personal progress and savings over timeGet useful and easy recommendations on how to cut down your energy useBy working with the Department of Energy and Stanford University on this research, you will play an important part in helping people save energy.

Why teach search? Google understands the importance of finding the right information at the right time. We create tools to let you find the information you need, of the kind you need, when you need it. In most cases, a simple search works really well. But for more specialized questions, a bit of instruction in how to search improves all searcher--from middle school students to trained professionals--and lets you discover and use more, higher quality sources than ever before.

Sophia is the perfect place for anyone to share what they know. Whether an educator, tutor, professor, parent or subject expert, Sophia makes it easy to share your knowledge and make it available to anyone, anywhere, at anytime.