Daniel Li

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Simple math is why Elon Musk’s companies keep doing what others don’t even consider possible

Physicist Richard Feynman returned over and over to an idea that drove his groundbreaking discoveries. His approach was documentedby his Caltech colleague David Goodstein in the book <i>Feynman’s Lost Lecture</i> about physics classes Feynman taught in the 1960s:<p>Once, I said to him, “Dick, explain to me, …

Elon Musk

SpaceX’s self-landing rocket is a flying robot that’s great at math

What you’re seeing in the video above is a 40 meter tall SpaceX rocket booster, weighing more than 20 tons, fly itself back to Earth from space and land precisely on a target at Cape Canaveral.<p>What you may be wondering is, how did it do that?<p>The first thing to know is that a rocket booster is in …

Space Travel

The problem with p-values

Academic psychology and medical testing are both dogged by unreliability. The reason is clear: we got probability wrong<i>By David Colquhoun</i>Read at Aeon

Cognitive Impairment

To Defuse an Argument, Think About the Future

If you’re caught up in conflict with someone, there are a few practical strategies that can help you resolve the situation. These strategies include seeking compromise, taking the other person’s perspective, being humble, trying to forgive, and not casting blame. But personal conflicts are …

Intel's credit card-sized 'Compute Card' makes old devices feel new again

It’s not much to look at, but Intel’s ‘Compute Card’ could revolutionize consumer technology by making your old — but still functional — tech feel ‘new’ again.<p>What is it?<p>The Compute Card is essentially a full computer — SoC, memory, storage, various input/output options, and wireless connectivity. …

Consumer Tech

Designing a Safer Battery for Smartphones (That Won’t Catch Fire)

SAN FRANCISCO — Mike Zimmerman likes to shock his guests by using a hammer to drive a nail through a solid polymer lithium metal battery.<p>Nothing happens — and that’s a good thing.<p>Mr. Zimmerman’s battery is a new spin on lithium-ion batteries, which are widely used in products from smartphones to …

Clean Energy

Don’t blame climate change for extreme weather

Climate change means more extreme weather: This is a simple, powerful claim that has been pounded into our consciousness for a decade.<p>From Greenpeace …

Climate Change

An Otherworldly Watch

Whether it’s via the air, land, or sea, fantastic voyages have long inspired timepiece design and the modern Odyssey watch is no exception. The …

How SpaceX Makes Its Rocket Nozzles

A quick look into the process from Elon Musk.<p>Ever wondered how exactly you go about making a rocket nozzle? Elon Musk has your answer. The footage from the tweet above is a little short on details—How long does it take? How hot is that metal? How many torches is that exactly?—but it's still a blast …

New Tesla Model 3 photo still leaves important questions unanswered

Earlier today, <i>Electrek</i> stumbled across a new Model 3 photo (via Imgur) which provides us with an updated look at the car’s interior. While we’ve seen …

Tesla

Hardware is the ‘necessary evil’ for Snapchat, Google and Microsoft to reach a brighter future

Snapchat, an internet social messaging company, started selling high-tech sunglasses. Google, a search advertising company, started selling the Pixel phone. And Microsoft, a software company, started selling the Surface Studio PC.<p>The internet and software giants are suddenly hot for hardware — a …

Selling

Tesla is about to increase its lead in semi-autonomous driving w/ ‘Tesla Vision’: computer vision based on NVIDIA’s parallel computing

It’s arguable, of course, but third-party tests have shown Tesla Autopilot outperforming other semi-autonomous or advanced driver assistance systems (ADAS) from Mercedes, Hyundai and Cadillac by a wide margin. That, and the fact that Tesla is gaining more real world data in its vehicles than anyone …

Is Newton's Principia Still Relevant?

<i>Is Isaac Newton's Principia out of date now? originally appeared on Quora - the knowledge sharing network where compelling questions are answered by people with unique insights.</i><p><b>Answer by Paul Mainwood, Ph.D. in physics, on Quora:</b><p>I would love to know how many people in the world today have actually …

Upgrading Autopilot: Seeing the World in Radar

While there are dozens of small refinements with Version 8 of our software, described in addendum below, the most significant upgrade to Autopilot …

Tesla

8 Career Lessons From SpaceX Founder Elon Musk

Elon Musk has definitely positioned himself at the top of different industries. The South African-born Canadian-American business magnate is the …

Author of new Silicon Valley tell-all says this is what outsiders most often get wrong about Mark Zuckerberg

To Antonio García Martínez, the former Facebook employee who wrote the new Silicon Valley tell-all "Chaos Monkeys," the 2010 Academy Award-winning film "The Social Network" is a piece of pure fiction loosely inspired by actual events.<p>And though the film about the birth of Facebook, directed by …

Master Plan, Part Deux

The first master plan that I wrote 10 years ago is now in the final stages of completion. It wasn't all that complicated and basically consisted …

Tesla

Computing study refutes famous claim that 'information is physical'

A quote often attributed to Einstein reads: "Everybody knows that some things are simply impossible until somebody who doesn't know that makes them …

Albert Einstein

This scientist just changed how we think about climate change with one GIF

Ed Hawkins spends his days doing, you know, climate science. A professor at the University of Reading in the UK, he has published widely on the overturning circulation in the north Atlantic Ocean, as well as trends for sea ice in the Arctic and how to predict future temperatures, among other …

Climate Change

The Science of Baking, In One Graphic

Baking is a science as well an art, and the key to better baking is understanding the chemical forces at play. Thankfully this graphic explains all …

Why Can't We Fire Electrons Across Space For Wireless Power?

<i>My understanding of how old tube-type televisions worked is that a “gun” at the back of the tube – the cathode – fired electrons at the screen. So, my question is, if it is possible to “fire electrons” through space, why is it not easy to transmit electrical power wirelessly?</i><p>Your understanding of …

Wireless Charging

Elon Musk works at a desk at the end of the Model X assembly line, sleeps in a sleeping bag there

On today’s Tesla earnings call, CEO Elon Musk addressed the concerns of the Model X quality control by noting that he was now working at a desk at the end of the Model X assembly line and was spending so much time there that he had a sleeping bag there – and that he used it quite frequently…<p>The …

Tim Cook, Elon Musk, and Larry Page were at a private event where the 'main topic' was stopping Trump

That event, the American Enterprise Institute's annual World Forum, is a conference hosted on a private island off the coast of Georgia.<p>In addition to those tech leaders, attendees this year included Republican Party leaders like Senate Majority Leader Mitch McConnell, former presidential adviser …

Tesla Model 3 To Be Unveiled March 31st

Tesla’s newest vehicle will finally be shown to the public at the end of this month, according to reports from the Tesla Motors Club website. The …

A Friendly Open Letter to Bill Nye (about Philosophy)

Dear Bill Nye<p>Recently, in a “Big Think” segment, you were asked your opinion of philosophy. As you might recall, your response was less than …

Computer Science

Jeff Bezos won't let Elon Musk just have this moment of SpaceX victory

SpaceX founder and billionaire Elon Musk made history today by launching his Falcon 9 rocket and landing the first stage on earth — the equivalent of …

Tiny Machine Paddles Water, Eats Pollution, Spits Out Electricity

Row, row, row your bot<p>Inside these tiny machines is a colony of hungry bacteria, yearning to eat. The row-bot, as this charming little device is named, paddles about on the surface of water, funneling waste and pollution into its bacteria-rich stomach and receiving electrical power in return. It’s …

Pollution

General Relativity: 100 Years Old And Still Full Of Surprises

Dark energy, gravitational waves, and black holes may be just the beginning<p>In 1913, Albert Einstein had stalled in his efforts to construct his general theory of relativity. He pleaded with his friend Marcel Grossmann for a mathematical boost: “Grossmann, you’ve got to help me, otherwise I’ll go …

Physics

‘We Need an Energy Miracle’

Bill Gates has committed his fortune to moving the world beyond fossil fuels and mitigating climate change.<p>In his offices overlooking Lake Washington, just east of Seattle, Bill Gates grabbed a legal pad recently and began covering it in his left-handed scrawl. He scribbled arrows by each margin of …