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Author: matt

World’s most powerful magnet

World’s most powerful magnet

The strength of the Earth’s magnetic field is about 30 microtesla. The magnets in an MRI machine clock in at about 3 tesla, and the approximate magnetic field of a white dwarf star is about 100 tesla.

So just think about how powerful this 1,200-tesla magnet created by Shojiro Takeyama and his colleagues at the Institute for Solid State Physics at the University of Tokyo.

To achieve that intensity, Takeyama and his team pump megajoules of energy into a small, precisely engineered electromagnetic coil, the inner lining of which then collapses on itself at Mach 15 — that’s more than 3 miles per second (5 kilometers per second). As it collapses, the magnetic field inside gets squeezed into a tighter and tighter space, until its force peaks at a tesla reading unimaginable in conventional magnets. Fragments of a second later, the coil collapses entirely, destroying itself.

The last time Takeyama switched on his super-strong magnet, it blew out the heavy door of the lab that contained the machinery. Check it out here:

Artistic style transfer for videos and spherical images

Artistic style transfer for videos and spherical images

Everyone has seen those phone apps that make your photos look like the style of a famous painting. It is often called transferring artistic style. Code is easily available for you to write one yourself. Freshman in Stanford CS 231n do this today using neural nets.

 

Researchers have now extended that technique to video using some interesting new optical flow techniques. Will we even need animators in the future?

Fun night with the boys in Indianapolis

Fun night with the boys in Indianapolis

Not saying this was the perfect bachelor party itinerary, but it was a pretty darn good one. 🙂

K1 Speed cart racing

The Rathskeller – great German food in a classic German beer hall. With live music!

MacNiven’s Scottish Bar – great Scotches and Scottish food – even haggis

Tappers Bar & Arcade – drink beers and play old 80’s arcade machines all set on freeplay

 

Optional/alternatives:

Nicky Blaine’s upscale and funky cocktail+cigar bar

Claddagh’s Irish pub for whiskey flights

Farming revolution is not being televised

Farming revolution is not being televised

Autonomous cars are getting all the press, but there is an even more disruptive side to self-driving vehicles that will almost certainly come first – autonomous farming.

Imagine running a farm completely from your study? Sending fleets of tractors and harvesters to work 24-7 without a single human setting foot in the field. They can be timed to plant, harvest, or plow when conditions are optimal. Be monitored remotely by camera and even be driven remotely.

They could be combined with small drones or robots that are able to do fine labor – like weeding without damaging the plants and using a minimal amount of chemicals:

This isn’t just about reducing labor efforts – it’s actually a potentially huge jump in productivity and capital outlay as well. Imagine fields that can be analyzed and automatically planted based on market conditions, soil conditions – all to maximize profit and production.

It could radically reduce costs and environmental impact of chemicals used to feed, weed, and protect by insecticides. Imagine a machine that could drive over a field – targetting weeds and plants and give it exactly the right amount of insecticides, feed, and weed killer on an individual level.

This technology is not science fiction – it’s here in prototypes now. It should become ubiquitous in the next decade or two. Here’s a good overview of what’s coming and already in development

How easy it is to make anyone say anything now

How easy it is to make anyone say anything now

More proof that seeing is NOT believing.

I’ve posted numerous research papers that show how easy it is to make videos do what you’d like. How to take snippets of voices and make people say whatever you’d like. We can even now make people do dances on video they can’t do in real life. How easy is this to do? Deep fakes are shockingly easy as it turns out and only needs a few savy folks to make one.

Here’s the latest example where former US president Obama is made to say whatever the actor behind them wants.