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Comment: While driving a car (Score 1) 310

On a long drive from LA to Portland I was the driver and I was bored, so I wrote a simple moon lander game (modeled from one I'd seen written in BASIC) for my new HP-25 programmable calculator by dictating instructions to the guy riding in the shotgun seat. The display showed your altitude on one side of the decimal place, velocity on the other side (and with the +/- sign) and remaining fuel in the exponent. After each iteration you entered how much fuel to burn on the next step and pushed R/S (Run/Stop) to continue. If you got down to zero altitude (or below) with a velocity less than some maximum value then you had made a successful landing. Otherwise you crashed.

Comment: Make it easy for them (Score 1) 205

by Wormholio (#44251641) Attached to: How Do You Get Better Bug Reports From Users?

Writing a good bug report is not easy, and users should not be expected to know what information the developer will need to find and fix the bug. They only want to report that there is a problem, and that they'd like it fixed.

That said, you can guide them to give more useful information. I found that making a form to fill out with all the details broken out into separate pieces gave us more useful information. Want to know how to reproduce the bug? Make that an individual question on the report. Which component where you using, or what web page were you on? Make that a specific question. A real person can follow up if necessary to get other information, and then they can file the "official" bug report in the form that the developer can understand and use.

Comment: Even crashes the crash reporter! (Score 5, Funny) 425

I tried this in Safari on Lion. Capital F required, but indeed just "File:/// " crashes it.
Then you get a pop-up asking if you want to report the problem to Apple? Sure.
But then that crashes with a pop-up reporting that crash reporter has crashed. Bonus!

Comment: Bird's eye view (Score 1) 350

by Wormholio (#37704528) Attached to: Ask Slashdot: How to Exploit Post-Cataract Ultraviolet Vision?

Birds supposedly have UV vision, and some of their markings are for each other, and are more clearly distinguished by other birds that can see UV.

So you might consider observing birds and making sketches of their markings, much like the naturalists of 100 years ago, so that the rest of us can see what the birds can see of each other.

Comment: Verizon blocks at the "free" router (Score 1) 459

by Wormholio (#35273820) Attached to: Ask Slashdot: Is There a War Against Small Mail Servers?

I've run my own mail and web servers from my home for years, so I was worried about this when I was making the switch from Time-Warner cable (who didn't care, BTW) to Verizon Fios. One person I know reported that Verizon did indeed block port 25 (and port 80) inbound, while another told me his setup worked fine, once he replaced the free router they gave him with his own router.

And indeed, after making the switch, I still am able to get mail inbound on port 25. The modem/router they gave me does have controls to adjust security settings, which look a lot like Windows trusted -vs- untrusted controls. But I can't really tell if they do much. The key thing I found was to set up port forwarding to send port 25 to the machine in my internal network with the mail server. Same for port 80 to the web server.

Outbound I route through the ISP. Postfix makes that easy. I found a few years ago that certain domains I sent to, though not all of them, started bouncing mail even though I had an SPF record, just because my IP address was in a range listed as "dynamic" (i.e. "residential"). Clearly that's for spam control. Not everybody does this, and I could send direct to those who do not, but it was simpler to just send everything out via port 587 to the ISP.

Comment: Re:Recommended alternatives? (Score 1) 194

by Wormholio (#33767708) Attached to: Many Top iPhone Apps Collect Unique Device ID

If you take a hash (eg SHA1 is better than MD5) of the UDID you get a unique string that is not the UDID. Of course if other apps do the same then these could be compared to identify users -- not necessarily by name, but connecting a user on one server with a user on another.

So concatenate the App Id, which is unique to the app, with the UDID, which is unique to the device, and then take the hash, which is then unique to both and not invertible. Do this once, on the device (not on your server, or the UDID has to be transmitted), and use that as a unique identifier of the user/device.

Comment: Re:Anyone else notice the slow responses from Goog (Score 1) 152

by Wormholio (#31610726) Attached to: YouTube Is Down

I've noticed lots of slow responses or no responses from Google servers lately. (Gmail, Google Docs, Google Search, Youtube, Google Maps, etc) It doesn't happen all the time, but many many times throughout the day. Has anyone else noticed this? If so, is anything known about it? DOS, etc?

Yes, I use Google for DNS and I've notice in the past day or two that it fails for long intervals (many minutes). I also wondered about DOS.

Space

Astronomers Discover 33 Pairs of Waltzing Black Holes 101

Posted by ScuttleMonkey
from the teach-them-to-foxtrot dept.
Astronomers from UC Berkeley have identified 33 pairs of waltzing black holes, closing the gap somewhat between the observed population of super-massive black hole pairs and what had been predicted by theory. "Astronomical observations have shown that 1) nearly every galaxy has a central super-massive black hole (with a mass of a million to a billion times the mass of the Sun), and 2) galaxies commonly collide and merge to form new, more massive galaxies. As a consequence of these two observations, a merger between two galaxies should bring two super-massive black holes to the new, more massive galaxy formed from the merger. The two black holes gradually in-spiral toward the center of this galaxy, engaging in a gravitational tug-of-war with the surrounding stars. The result is a black hole dance, choreographed by Newton himself. Such a dance is expected to occur in our own Milky Way Galaxy in about 3 billion years, when it collides with the Andromeda Galaxy."

Apple Orders 10 Million Tablets? 221

Posted by ScuttleMonkey
from the pricepoint-better-be-right dept.
Arvisp writes "According to a blog post by former Google China president Kai-Fu Lee, Apple plans to produce nearly 10 million tablets in the still-unannounced product's first year. If Lee's blog post is to be believed, Apple plans to sell nearly twice as many tablets as it did iPhones in the product's first year."

White dwarf seeks red giant for binary relationship.

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