Known as “America’s first female cryptanalyst,” Elizebeth Smith Friedman was a master code breaker who played a pivotal role in both World Wars. For many years, no one knew what she had done, not even her own family. Code breaking wasn’t Smith Friedman’s plan to begin with. In the mid-1910s she was a 23-year-old college… Continue reading This Code Breaking Quaker Poet Hunted Nazis
Category: Quantum Stuff
She Decodes Quakes From Undersea Volcanoes (and Taylor Swift)
Quanta Magazine > 0; if (typeof predicate !== ‘function’) { throw new TypeError(‘predicate must be a function’); } var thisArg = arguments[1]; var k = 0; while (k We care about your data, and we’d like to use cookies to give you a smooth browsing experience. Please agree and read more about our privacy policy.Agree… Continue reading She Decodes Quakes From Undersea Volcanoes (and Taylor Swift)
Why the Human Brain Perceives Small Numbers Better
Nine patients did simple calculations in their heads while researchers recorded their brain activity. Sure enough, in the data, Nieder and Mormann saw neurons firing for their preferred numbers — the first time number neurons had been identified in the human brain. They published their findings in Neuron in 2018. Neuroscientists are of course driven… Continue reading Why the Human Brain Perceives Small Numbers Better
A New Generation of Mathematicians Pushes Prime Number Barriers
If this hypothesis is correct, that would mean that when you’re sieving up to 1 trillion, you can cross off multiples of 2, then 3, then 5, and keep going until the inclusion/exclusion sum starts to involve divisors over about 1 million — beyond that point, you can’t calculate the terms in your sum. In… Continue reading A New Generation of Mathematicians Pushes Prime Number Barriers
A Brief History of Tricky Mathematical Tiling
Quanta Magazine > 0; if (typeof predicate !== ‘function’) { throw new TypeError(‘predicate must be a function’); } var thisArg = arguments[1]; var k = 0; while (k We care about your data, and we’d like to use cookies to give you a smooth browsing experience. Please agree and read more about our privacy policy.Agree… Continue reading A Brief History of Tricky Mathematical Tiling
Bats Use the Same Brain Cells to Map Physical and Social Worlds
A fruit bat hanging in the corner of a cave stirs; it is ready to move. It scans the space to look for a free perch and then takes flight, adjusting its membranous wings to angle an approach to a spot next to one of its fuzzy fellows. As it does so, neurological data lifted… Continue reading Bats Use the Same Brain Cells to Map Physical and Social Worlds
The Hidden Connection That Changed Number Theory
There are three kinds of prime numbers. The first is a solitary outlier: 2, the only even prime. After that, half the primes leave a remainder of 1 when divided by 4. The other half leave a remainder of 3. (5 and 13 fall in the first camp, 7 and 11 in the second.) There… Continue reading The Hidden Connection That Changed Number Theory
Here’s Why Salt Water Is Invading the Mississippi and Whether It Will Happen More Often
CLIMATEWIRE | The drought-driven wedge of salt water creeping up the Mississippi River is deepening a mystery about one of the world’s mightiest waterways. How will climate change affect the river? There are relatively few scientific studies on how warming is reshaping the Mississippi, and even fewer on saltwater intrusion from the Gulf of Mexico. The… Continue reading Here’s Why Salt Water Is Invading the Mississippi and Whether It Will Happen More Often
How to Watch the Northern Lights and Other Awesome Auroras
Imagine standing under the starry vault, bundled against the cold, when the sky erupts overhead. Rippling curtains, ribbons and streamers of colors across the rainbow light up the night, shimmering and majestic and all eerily silent. That’s what it’s like to see a vivid auroral display, and being able to witness one for yourself is… Continue reading How to Watch the Northern Lights and Other Awesome Auroras
The AI Boom Could Use a Shocking Amount of Electricity
Every online interaction relies on a scaffolding of information stored in remote servers—and those machines, stacked together in data centers worldwide, require a lot of energy. Around the globe, data centers currently account for about 1 to 1.5 percent of global electricity use, according to the International Energy Agency. And the world’s still-exploding boom in… Continue reading The AI Boom Could Use a Shocking Amount of Electricity