Final Cut Pro X 10.3, Motion 5.3, Compressor 4.3

Brings a redesigned dark interface to the three professional video editing apps, plus support for wide color workflows and the Touch Bar on new MacBook Pro models. ($299.99/$49.99/$49.99 new, free updates)

 

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Airfoil 5.5

Adds support for streaming audio to Google Chromecast devices. ($29 new, free update, 14.4 MB)

 

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Build the Simplest Bipolar Power Supply

How many integrated circuits do you need to build up a power supply that’ll convert mains AC into a stable DC voltage? Would you believe, none? We just watched this video by [The Current Source] (embedded below), where he builds exactly that. If you’re in the mood for a very well done review of diode bridges as well as half- and full-wave rectifiers, you should check it out.

First off, [TCS] goes through the basics of rectification, and demonstrates very nicely on the oscilloscope how increasing capacitance on the output smooths out the ripple. (Hint: more is better.) And then it’s off to build. The end result is a very simple unregulated power supply — just a diode bridge with some capacitors on the output — but by using really big capacitors he gets down into the few-millivolt range for ripple into a constant load.

The output voltage of this circuit will depend on the average current drawn, but for basically static loads this circuit should work well enough, and the simplicity of just tossing gigantic capacitors at the problem is alluring. (We would toss in a linear regulator somewhere.)

Quibbling over circuit designs isn’t why you’re watching this video, though. It’s because you want to learn something. Check out the rest of his videos as well. [TCS] has only been at it a little while, but it looks like this is going to be a channel to watch.

Filed under: misc hacks

Living off the Grid, on Water Power

When you think of living off the grid, you often think of solar power. But if you’ve got a good head, and enough flow, water power can provide a much more consistent flow of electrons. All it requires is a little bit of engineering, epic amounts of manual labor, and some tricks of the trade, and you’ll have your own miniature hydroelectric power plant.

[Homo Ludens], the playful ape, has what looks like a fantastic self-sufficient home/cabin in a beautiful part of Chile. His webpages are a tremendous diary of DIY, but the microhydro plant stands out.

You might expect that building a hydro plant involves a lot of piping, and trenching to lie that pipe in, but the exact extent, documented in many photos, is sobering. At places, the pipe needed to be bent, and [Homo Ludens] built a wire-mesh pipe heater to facilitate the work — with the help of a few friends to weigh the pipe down at either end and create the bend. The self-wound power transformer is also a beauty.

There’s a lot more detail here than we can possibly get into, so go check it out. And if you’re in the mood for more hydro, we’ve recently run a writeup of a less ambitious, but still tidy, project that you should see. Or you could just rip apart an old washing machine.

Thanks [Patrick] for the great tip!

Filed under: green hacks

GarageBand 10.1.3

Adds support for the context-sensitive Touch Bar on the new MacBook Pro. ($4.99 new, free update, 949 MB)

 

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iMovie 10.1.3

Adds support for adding video clips to a movie using the context-sensitive Touch Bar on the new MacBook Pro. ($14.99 new, free update, 2.05 GB)

 

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Pages 6.0.5, Numbers 4.0.5, and Keynote 7.0.5 for Mac

All three iWork apps add support for the context-sensitive Touch Bar on the new MacBook Pro. ($19.99 each, free updates)

 

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iTunes 12.5.2

Fixes a bedeviling play order bug and an issue that prevented lyrics from displaying while listening to Beats 1. (Free, 263 MB)

 

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MoneyWiz 2.5

Adds support for tags in transactions and budgets. ($59.99 annual subscription, free update, 20.8 MB)

 

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Safari 10.0.1

Patches a couple of WebKit-related security vulnerabilities for 10.10.5 Yosemite and 10.11.6 El Capitan. (Free)

 

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