Forgot your password?
typodupeerror

Comment "bright as a full moon" (Score 3, Insightful) 80

You can stare at the full moon all night if you like, because the albedo of the moon has filtered most of the light including the UV band that naturally passes through our own atmosphere. The three mile circle illuminated by a mirror would bounce a significantly higher amount of UV than the moon's albedo. If you treat the 60ft reflector as an analog to a pinhole in a pinhole camera, the circular area on the Earth surface would be a rough projection of the image of the sun.

(1) I wonder how they calculate the UV exposure for the observer on the surface within the illumination area.

(2) I wonder if you'd be able to detect places in a coherent projection where sunspots or coronal ejections are reflected through the "pinhole" effect of this arrangement.

Comment Re:One problem... (Score 1) 205

> The problem is when it costs MONEY to develop

It usually does, but we've somehow made free software for most tasks, and we maintain it. In some ways we do it better as free software.

Sometimes. And sometimes, development is faster with restricted sharing and per-copy fees. If faster development was the only issue, then maybe restrictions on sharing could be ok.

But there are other things like how much everyone should be able to know about the software that increasingly runs our lives, like whether people should be able to verify the security of some software, or audit the response to a security incident. Free software makes society better in those ways.

Also, you mention maintenance. We should keep in mind that the cost of maintenance is increased when only one person is allowed do the maintenance. So high costs is an argument for wanting money, but it can also be an argument for using a lower cost path, such as allowing everyone to do the maintenance, either for free or in a competitive market.

Comment Re:One problem... (Score 1) 205

He advocates sharing, and the GPL allows sharing.

He says to ignore laws that block sharing. That means ignoring some parts of copyright law. Some other parts of copyright law are fine. There's no contradiction.

(And if someone has a follow up question about sharing everything, no, he doesn't advocate for sharing everything. Some stuff is personal, for example. He's in favour of sharing generally useful technical information, such as the source code of software that has been given to you.)

Comment the usual suspects (Score 3) 17

What megalomaniacal near-trillionaire had a whole squadron of leet hackers hoovering up federal employee records just a few short months ago? I forget. It musta been somebody with pockets 30x deeper than George Soros to tunnel into those boring databases, we should launch an investigation.

Comment Some perspective (Score 1) 270

23% of that debt is owned by the Bank of England ("Gilt and Treasury Bill Holding"), which in turn is owned by... the British government.

Some more background information: https://www.taxresearch.org.uk...

In short, it is a choice to be beholden to the bond markets in this way. It is a political choice to outsource the fiscal margins of government spending to the financial sector, and paying them lavishly for that privilege. And no, I'm not saying this means you can spend endlessly on anything without very bad consequences. It's just that it's a very expensive way to provide the money supply and private savings, while giving enormous budgetary power to a sector that has proven time and again that it's unable to properly manage the economy's funding (if it's even interested in that at all, rather than just in enriching itself).

Comment Hematite vs Rust (Score 5, Informative) 20

Hematite is one specific type of iron oxide. Rust is a non-technical umbrella term for all iron oxides, and the typical red ones we see in daily life are formed by contact with water and are not hematite. Hematite is a dark charcoal gray and is sometimes formed as a byproduct of iron ore processing or other heat and pressure processes in the ground, where oxygen may be present but not water.

Slashdot Top Deals

Advertising is the rattling of a stick inside a swill bucket. -- George Orwell

Working...