etwigg

10 ms·

61.
by etwigg 9y ago
I sell a niche desktop application to engineering companies. They self-police themselves pretty well - we're really not concerned with them cracking our software at all. We built our own stupid-simple licensing system. True, it wasn&
62.
by etwigg 10y ago
That's a great goal to have! But if you're putting energy into a flow using a propeller or fan, aerodynamic stall means that each propeller can only put a limited amount of energy in. This is why jet engines have so many compres
63.
by etwigg 10y ago
> You have to distinguish the conventional (high efficiency) cycle of a jet engine at low Mach, from the reheat (low efficiency) operation usually used for high Mach. Exactly. At high mach, almost all of the energy being put into the fl
64.
by etwigg 10y ago
If you take a course in energy conversion, and also an economics course, then you would consider this. https://en.wikipedia.org/wiki/Nuclear-powered_aircraft Some joules are more expensive than others :)
65.
by etwigg 10y ago
Which was seriously considered during the cold war: https://en.wikipedia.org/wiki/Nuclear-powered_aircraft As bad of an idea as using javascript to do addition rather than assembly. You're assuming electric energ
66.
by etwigg 10y ago
Aircraft weight turns directly into fuel cost via induced-drag. If electric energy is wildly inexpensive, you can afford very heavy airframes. See https://en.wikipedia.org/wiki/Nuclear-powered_aircraft
67.
by etwigg 10y ago
When a jet engine burns fuel, some energy goes into turning the fan, and some energy goes into creating thrust. At low-mach, the fuel burn is primarily producing torque which turns the fan. This fan could be turned by electricity. At high-
68.
by etwigg 10y ago
You are correct that it's wasteful, if one joule of electric energy and one joule of chemical energy cost the same. But if you are getting electric energy for free from solar panels, and you're getting chemical energy by pumping t
69.
by etwigg 10y ago
> Once you are no longer combusting fuel, all of that compression is simply wasted energy. Not true. Instead of burning fuel, you can use electricity (something like an arc welder) to generate heat. And the efficiency with which that h
70.
by etwigg 10y ago
SWT (the eclipse widget toolkit) takes this approach. It's very difficult to maintain API compatibility with the myriad browser versions out there, not to mention having the content in those browser windows display reliably. The real
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by etwigg 10y ago
This is especially true with Java 8's lambda syntax and method references. Because a Java function's signature includes its checked exceptions, implementing a functional interface can require lots of verbose nested try-catches. e
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by etwigg 10y ago
https://github.com/diffplug/spotless
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by etwigg 10y ago
Pure-native was a full C++ port. The Java part of SWT uses manual memory management, and is written very simply. I think you could autoconvert it to C++ and present the API that way.
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by etwigg 10y ago
Nice work, but I wish SWT had picked up more steam outside the Java community. It's the same idea, but with a decade+ of banging on the corner cases for the use cases of the Eclipse IDE. In addition to all the standard controls, it&#x
75.
by etwigg 11y ago
> is there a code review gate that forbids the code coverage figure to go below 80%? That's one usage pattern. Here are two others, more focused on individual productivity rather than team standards. 1. Write some code, write a test
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A library by any other version(medium.com)
1 points by etwigg 11y ago|0 comments
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by etwigg 11y ago
I agree that college is a chance to experiment and make mistakes. But I hope that they fail in making the changes they're advocating for. It's good to hear people you disagree with. The students at Yale have been preventing oppo
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by etwigg 11y ago
Thanks for the feedback! On the spectrum from "iOS" to "airplane cockpit", I think GitHub is trying to be iPhone, but I think git has enough inherent power (like an aircraft) that you leave a lot of functionality on the
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by etwigg 11y ago
100% agree! Was hoping to have the full manual done today, but it's not ready yet. Kinda worked out - I'll spend today ducking as the GitHub goliath whooshes over me for HN readership's attention ;-). The rest of the produc
80.
by etwigg 11y ago
Shameless plug: I recently built a new linux GUI git client. The people who use it really like it. Still working on docs to better explain what makes it different. Like GitHub's client, it's more than just a wrapper around the
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by etwigg 11y ago
I don't think diff will perform well on two 4gb inputs. I agree there should be a modular approach, but I don't think flat text is the best lowest-common-denominator. Your proposal would certainly work for a lot of cases though,
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by etwigg 11y ago
Great idea! That would work well for a lot of stuff, but I don't think it would scale to diffing, say, two 4Gb iso files. Also, some structured content has user-hidden IDs which can help a differ, but they probably wouldn't show
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by etwigg 11y ago
Looks great! Shameless plug: DiffPlug can also diff arbitrarily nested zip/tar/gz, runs on Win/Mac/Linux, and supports text/image/other stuff too. It's closed-source and GUI, but you can control it from
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Git for DiffPlug – git for stuff that isn't plaintext(kickstarter.com)
6 points by etwigg 11y ago|0 comments
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by etwigg 11y ago
The software is in pretty early beta. It's a typical pre-order: pay $40 now while it still has bugs, or full-price later (likely $80) when it's cleaned up. There's also a stretch goal to release a big chunk of infrastructur
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Show HN: Git for DiffPlug(kickstarter.com)
2 points by etwigg 11y ago|2 comments
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by etwigg 11y ago
I think the most useful / interesting part is the generic exceptions and one-liner error handling stuff: https://github.com/diffplug/durian/blob/develop/test/com/dif...
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Show HN: Guava's missing pieces for Java 8(github.com)
1 points by etwigg 11y ago|1 comments
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All of heartbleed(blog.nedtwigg.diffplug.com)
2 points by etwigg 13y ago|0 comments
90.
by etwigg 13y ago
Way cool! The handwriting feature is very well done, and seems like a decent barrier to entry for copycats. One critique - when I was trying to write letters that required multiple strokes, such as 'i' or 't', oftentim

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