Measuring the Speed of Sound
The instructor uses Audacity software, a click, a tube and a simple formula to calculate the speed of sound. (05:33)
The First F6F Hellcat Ace
In this video clip, watch as the enemy gunfire ironically saves the first Hellcat Ace pilot's life during an action-packed dogfight in the Pacific in World War II. (3:01)
Hero Ships: USS Yorktown: Night Attack
In this Hero Ships video clip, listen as American World War II pilots of the USS Yorktown reminisce about their epic raid on Japan. (2:53)
Japanese Attack Pearl Harbor
In this newsreel video clip, take a look back at the attack on Pearl Harbor on December 7, 1941. View images and footage of the destruction the Japanese kamikaze pilots left on the U.S. naval base. This is a day that lived in infamy for many Americans. (2:26)
Street photography whirlwind weekend
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Magnetische inductie bij een rechte geleider : Demonstratieproef I In dit practicum plaats je een hallsonde van een teslameter in de nabijheid van een rechte geleider. Dit doe je op verschillende afstanden en met verschillende stroomsterktes. Telkens meet je de magnetische …
Magnetische inductie bij een rechte geleider : Demonstratieproef II In dit practicum plaats je een hallsensor in de nabijheid van een rechte geleider. Dit doe je op verschillende afstanden en met verschillende stroomsterktes. Telkens meet je de magnetische fluxdichtheid terwijl de elektrische …
קורס חדש: ×¤×¨×§×™× ×‘×ª×•×œ×“×•×ª יהודי ×רה"ב (10589) å¾®ç©åˆ†_確èªç”¨ Amharic Fidels Grammar exercise_Somali _verb to be Subtraction: Regrouping With Zeroes Help Wanted: Big Data and the Talent Gap There is a lot of energy and discussion these days around "big data," and most of it seems to focus on the underlying technology enablers and what you can do with them ... real-time analytics, noSQL stores, map|reduce capability, complex event processing, and a host of other technologies, architectures, and approaches to deal with what Bret Swanson described in his seminal 2007 Wall Street Journal piece, "Author(s): Crack Hacker's Safe (Interactive Game) Metrolink Tram to Monsall Science Nation - Saving Tribal Languages Science Nation - Firefighter Tracker Science Nation - Large Lake Observatory Science Nation - Coral - White Pox
×‘×™×ž×™× ×לו × ×¤×ª×— לפ×"ר קורס חדש: "×¤×¨×§×™× ×‘×ª×•×œ×“×•×ª יהודי ×רה"ב (10589)". הקורס מכיל ×ת הספר: "החוויה היהודית ×”××ž×¨×™×§× ×™×ª: תולדות, מבו×ות, מקורו×
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Amharic Fidels.
Grammar exercise_Somali _verb to be.
In this video, a math teacher demonstrates how to teach students subtraction with regrouping when the numbers contain a zero or zeroes. Several examples are worked step-by-step on a white board. ( 7:01)
In this Cyberchase interactive, you must complete a series of shape, number and color patterns to crack Hacker's safe. Given the first four terms in the pattern, you must select the correct color/number/shape combination of the next term.
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By: nsf Tribal language educator Mary Hermes at the University of Minnesota, Duluth documents endangered languages. With support from the National Science Foundation, her team is working with elders to record, translate, transcribe, and annotate conversations. At the same time she is helping train new scholars, young and old, who want to speak the Ojibwe language. Her team is going beyond just translating text; they're creating videos of conversations among the elders. The videos, which will be
By: nsf Firefighters risk their lives every time they run into a burning building. But, new technology may soon be watching their backs, no matter how far they venture into the flames and smoke. With support from the National Science Foundation, TRX systems is developing a new sensor system that can track firefighters where GPS units often fail. Firefighters who are currently testing the new system wear a portable device called the Sentrix tracking unit, which is actually a suite of sensors that
By: nsf The Large Lakes Observatory (LLO) helps an interdisciplinary group of scientists use oceanographic research approaches to investigate the mysteries of large lakes, and that includes everything from large-scale reactions to climate change to new microbes and other forms of life. With support from the National Science Foundation, LLO scientists work to better understand the biology, chemistry, physics, and geology of these bodies of water. In the summer of 2011, LLO scientists completed a
By: nsf We often hear about insects and other animals passing on diseases to humans, so-called zoonotic diseases, such as rabies, cholera, West Nile virus, etc...Now, for the first time, researchers are examining a disease that humans are spreading to an animal, specifically Elkhorn coral off the Florida Keys. With support from the National Science Foundation, Rollins College biologist Kathryn Sutherland is tracing this emerging infectious disease phenomenon, known as "reverse zoonosis." Elkhorn
