Warehouse 13 Season 4 Episode 6

Warehouse 13 Season 4 Episode 6 Full HD

Warehouse 13

 

this day in the yesteryear: First Transatlantic Telegraph Sent (1858)

First Transatlantic Telegraph Sent (1858)

After the introduction of the working telegraph in 1839, the idea that countries and continents could be connected by a communications network became an exciting possibility. A working telegraph could transmit in mere minutes messages that had once taken weeks to deliver by sea. England and France were linked by submarine cable in 1850, but it took several attempts over the next eight years before a lasting connection could be maintained across the Atlantic. How long was this cable operational? More… Discuss

news: Cell Phones’ Effects on Adolescent Brains

Cell Phones’ Effects on Adolescent Brains

Although today’s youth cannot conceive of a world without cell phones, the devices have only been around for a few decades, and little is definitively known about their health effects. Researchers in Britain are therefore launching a study to investigate the effects of cell phones and similar devices on children’s brain development. It will track some 2,500 preteens into early adolescence and evaluate cognitive functions like memory and attention in an effort to discern whether their use of mobile phones, smartphones, or other wireless devices plays a role either in improving or impairing these functions. More… Discuss

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