You do a web search and click on a link that looks interesting. The information on the web page comes from another computer far away. That computer sends it to yours along a hopping path. Most of its journey is through cables—some under the sea.
How does the internet get under the sea?
1 Make a Glass Cable
Cables that carry the internet on land and under the sea are made of super-clear glass, spun into strands thinner than a hair. Several hundred strands are bundled together. Then they’re covered with layers of metal and plastic to make a cable that’s tough, flexible, and waterproof.
Computer signals travel along the glass threads as pulses of light. Computers read these signals and translate them into web pages, or movies, or the sound of a voice. Light beams are so thin that a single hair-sized fiber can carry over 25,000 phone calls at the same time.
How fast do these signals go? Take a breath. In one second, a light signal could travel five times around the earth. That’s two-thirds the speed of light (186,000 miles a second).
2 Map the Sea Floor
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When a Whale Falls
When an enormous whale dies, its body sinks to the bottom of the ocean. There it provides food for thousands of deep-sea creatures.
The Deepest Dive
In 1872, two scientists set out to study the ocean.
Marie Maps The Sea
Young Marie Tharp thought her dad had the best job ever. He traveled around the country, making maps. His maps were special—they revealed hidden things. They showed where different kinds of soil were, and wet and dry places. That helped farmers know what to plant.
Say you’re curious about giraffes.
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Meet A Lawmaker - A Chat With Ilhan Omar
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Bigger Than The Rules
How one tall kid changed the way we play basketball.
IRELAND INVESTIGATES TIKTOK OVER CHILD, CHINA DATA CONCERNS
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Supermodel Turned Super-Mogul
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The Inspiring World of Irish Crochet
Traditional Irish crochet, with its beautiful lacy motifs and the intricately cabled fisherman sweaters of the last century, still inspires modern crochet designers today. Recently we asked crochet designers and good friends, Bonnie Barker and Jennifer E. Ryan, to chat about their friendship and Irish-inspired crochet designs. The following is an excerpt from their video chat. Make sure to visit their websites to watch the complete video between these two good friends.
Olga Starostina & The Timeless Beauty of Irish Crochet
Years ago, when I was new to crochet, I heard a woman say she stopped knitting “because there’s nothing new to learn.” I was shocked. With new techniques and stitch patterns emerging, there is so much to know about crochet and knit work.
CHINA'S LEADERS VOW TO BECOME SELF-RELIANT TECHNOLOGY POWER
China’s leaders are vowing to make their country a self-reliant “technology power” as a feud with Washington cuts access to U.S. computer chips and other high-tech components, hampering Beijing’s industrial ambitions.
BOOZE HOUNDS BEN ON IRELAND FILM SET
REFORMED party animal Ben Affleck is stressing out while filming with pal Matt Damon in Ireland, insiders said — where he’s surrounded by booze!
LOCKDOWN LEADING COURTENEY TO ALTAR!
CAN’T TAKE BEING APART FROM ROCKER JOHNNY
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