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(CNN) – A geometry problem that has been puzzling scientists for 60 years has likely just been solved by an amateur mathematician with a newly discovered 13-sided shape. Called “The hat” because it vaguely resembles a fedora, the elusive shape is an “einstein” (from the German “ein stein,” or “one stone”). That means it can completely cover a surface without read more

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“Hi, Joel? It’s Marty Cooper.” Engineer Martin Cooper cradled a bulky object to his ear, listening. The gray device had two rows of numbered buttons between the ear and mouthpiece. An antenna poked from the top, reaching skyward to pick up invisible signals from the city’s jangling atmosphere. Next to the sidewalk, cars and taxis zipped down read more

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SAN FRANCISCO, March 24 (Reuters) – Intel Corp (INTC.O) co-founder Gordon Moore
, a pioneer in the semiconductor industry whose “Moore’s Law” predicted a steady rise in computing power for decades, died Friday at the age of 94, the company announced. Intel and Moore’s family philanthropic foundation said he died surrounded by family at his home in read more

Phantom of the Opera fans can now spend the night inside the opulent Parisian opera house that inspired the beloved musical and novel.
Airbnb and the Opéra National de Paris have teamed up to transform one of the Palais Garnier’s chambers, the Box of Honor, into a lavish bedroom. While the box is typically reserved for visiting dignitaries, two lucky read more

The Year of the Rabbit: An illustrated guide to Lunar New Year
Grab your favorite red shirt; it’s time to celebrate the Lunar New Year, also known as Spring Festival. Saying goodbye to the Tiger, we enter the Year of the Rabbit on January 22, 2023. Millions of families worldwide are preparing celebrations for one of the year’s biggest festivals. If you’re a Lunar New Year newbie, read more

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A photographer snapped snow-capped Stirling Castle shrouded in mist as he compared it to something out of Harry Potter. Scotland has been in the grip of an icy cold snap all week, with temperatures plunging to -17C in Braemar in the Highlands. Twenty years ago, Harry Potter author JK Rowling actually transformed Stirling Castle into her famous school of witchcraft and wizardry, Hogwarts.

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A prominent educator and patron of the arts, Henry Cole travelled in the elite, social circles of early Victorian England, and had the misfortune of having too many friends. During the holiday season of 1843, those friends were causing Cole much anxiety. The problem were their letters: An old custom in England, the Christmas and New Year’s letter had received a new impetus with the recent read more

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Frederick E Blaisdell Pencil debuted in the 1800s The pencil was an improvement from grease pencils—all you had to do once the graphite wore out was unwrap up more of the pencil. Blaisdell Pencils were famous among artists and weren’t primarily as durable as the ones today. In some cases, artists blew through 60 pieces per day. Over the years, prominent names made orders for custom read more

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‘Momentous’: Actor Anna May Wong to be first Asian American on U.S. currency
More than 60 years after Anna May Wong became the first Asian American woman to receive a star on the Hollywood Walk of Fame, the pioneering actor has coined another first, quite literally.

For her contribution to read more

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Embattled British Prime Minister Liz Truss announced she would step down from office Thursday after just 44 days in office
— making her the UK’s shortest-serving leader ever. The shunned leader has left office with a miserable 10% favorability rating among the British public, according to a recent YouGov poll.

Ricky read more

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…far beyond just the public-relations vids and soundbites, Federer demonstrated mostly grace, humility, gratitude, respect for the game, respect for fans, and, on the court, all-around greatness.
When he announced his retirement on social media, he said: “Of all the gifts tennis has given me over the years, the greatest, without a doubt, has been the people I’ve met along the read more

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Friedrich Wilhelm Heinrich Alexander von Humboldt (14 September 1769 – 6 May 1859) was a German polymath, geographer, naturalist, explorer, and proponent of Romantic philosophy and science. He was the younger brother of the Prussian minister, philosopher, and linguist Wilhelm von Humboldt (1767–1835). Humboldt’s quantitative work on botanical geography laid the foundation for the field of biogeography. read more