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1. Katrina makes landfall in Louisiana at 6:10 a.m., but the flooding of residential areas in greater New Orleans actually begins an hour and a half earlier. Between 4:30 and 5 a.m., levees located ...

NOVA Education supports STEM education and engagement nationwide through the creation of resources from NOVA's broadcast and digital productions.

It's a hifalutin title, but that's what this feature offers—in a capsule version, of course. Our time line stretches from the big bang some 10 to 20 billion years ago to the time 10 100 years in the ...

Over 2,700 years ago, the Assyrians exiled the ten tribes of the Kingdom of Israel. The ten tribes would have returned at once to the Holy Land had not the Lord encircled them with the legendary river ...

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The Queen Bee, the first returnable and reusable UAV, was designed for use as an aerial target during training missions. Anti-aircraft gunners in the Royal Navy practiced shooting them down at first ...

At 146.5 m (481 ft) high, the Great Pyramid stood as the tallest structure in the world for more than 4,000 years. Today it stands at 137 m (449.5 ft) high, having lost 9.5 m (31 ft) from the top.

Sir Isaac Newton once wrote, in what must be one of the most oft-quoted lines in the history of science, "If I have seen further it is by standing upon the shoulders of giants." Well, any of us who ...

"The ordinary adult never gives a thought to space-time problems.... I, on the contrary, developed so slowly that I did not begin to wonder about space and time until I was an adult. I then delved ...

Tudor Parfitt, the protagonist of the NOVA documentary "Lost Tribes of Israel," made a journey through southern Africa to study the unusual traditions of a black African tribe called the Lemba. This ...

Solar panels capture sunlight and convert it to electricity using photovoltaic (PV) cells like the one illustrated above. Such cells, which can power everything from calculators to cars (our example ...