How does an Electric Motor work? (DC Motor)

Electric motors can seem very mysterious! How do they use electricity to start rotating? Let’s break it down step by step to understand how it works. Topics covered in this video: circuits, current, magnets, electromagnets, armature, commutator, brushes, stator, and rotor. This video only covers DC motors.

This Artificial Intelligence Just Proved It’s Better Than Humans After Being Observed Doing This

Since the early days of humankind, man has been driven to discover new things and develop new technologies. Just like how the wheel was once a novel concept but is now necessary for one’s daily life, many new technologies will become commonplace and essential in a few years. Recent developments could possibly revolutionise multiple industries. These ground-breaking findings have the potential to change the world.

The Blockchain built for Social Media – DESO

DeSo is a layer-1 blockchain, like Bitcoin or Ethereum, that recently listed on Coinbase, has accumulated over 1.5 million accounts, and just crossed over $1B in volume transacted on-chain. DeSo is backed by Sequoia, Andreessen Horowitz, Social Capital, Coinbase Ventures, and many others (full list on deso.org). Our mission is to decentralize social media the same way Bitcoin and Ethereum are decentralizing the financial system. As a layer-1 blockchain, DeSo can be compared to other blockchains like Bitcoin, Ethereum, Solana, Avalanche, etc… However, DeSo has several major advantages over these platforms, the largest being that it is designed to power storage-heavy applications (like social applications and marketplaces). To put it in perspective, storing just a 200-character “Tweet” on Ethereum costs ~$80, and costs ~$0.25-$1.00+ on Solana, Avalanche, Polygon, and virtually all other smart contract chains. In contrast, it costs 1/1,000th of a penny on DeSo, which is why breakthrough apps like Diamond, Cloutfeed, Pearl, OpenProsper, NFTz, Entre, Cloutavista, and DAODAO are now possible exclusively on DeSo. DeSo’s Mission Today, social media is even more centralized than the financial industry was prior to the creation of Bitcoin. A handful of private entities effectively control public discourse, and earn monopoly profits off of content that they don’t even create. Society’s answer to financial centralization was not to put Warren Buffett in charge of money, it was to use technology, namely Bitcoin, so we could have nobody in charge. We believe the same type of technology will cause this conclusion to ultimately play out in social. DeSo’s advantages make it capable of breaking this status quo for the first time, and bringing competition and innovation back to social in much the same way Bitcoin and Ethereum have done for our financial system.

Chaos: The Science of the Butterfly Effect

I have long wanted to make a video about chaos, ever since reading James Gleick’s fantastic book, Chaos. I hope this video gives an idea of phase space – a picture of dynamical systems in which each point completely represents the state of the system. For a pendulum, phase space is only 2-dimensional and you can get orbits (in the case of an undamped pendulum) or an inward spiral (in the case of a pendulum with friction). For the Lorenz equations we need three dimensions to show the phase space. The attractor you find for these equations is said to be strange and chaotic because there is no loop, only infinite curves that never intersect. This explains why the motion is so unpredictable – two different initial conditions that are very close together can end up arbitrarily far apart.

Why a sausage can do what your gloves cannot – Charles Wallace and Sajan Saini

In 2010, South Korea experienced a particularly cold winter. People couldn’t activate their smartphones while wearing gloves, so they began wielding snack sausages— causing one company to see a 40% rise in sausage sales. So, what could sausages do that gloves couldn’t? In other words, how do touchscreens actually work? Charles Wallace and Sajan Saini dig into the science of touchscreens.

How Electricity Actually Work

Although the video does indeed point out that the electrons arrange themselves to establish the necessary fields in the wire, the treatment of the electrons thereafter is set aside for a preference of “the field”. However, as the electrons begin to drift, the only way for the field to maintain its necessary configuration is for the electrons to also continuously shift and move to maintain that field. Guess what? That also requires energy! Energy can also be stored in the charged particle configuration! In other words, if the “energy is in the field”, that energy would quickly dissipate and the field alone could not power the circuit unless the charges continuously rearranged themselves to maintain that field throughout the circuit. The field would not exist, or at least the necessary field to do continuous work would not be maintained without the flow of electronics, the current. Thus the current remains just as fundamental a part of the circuit as the field