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Is It Really GPS If It Doesn't Use Satellites?

rjforster Reminds me of ... (298 comments)

...proposals (and lab prototypes / research) to use single atom trapping technology or atomic fountains or other such experiments to accurately measure the local gravitational field. The idea (and the source of grant funding, if you get my drift) was that If they did it at each end of a sub they could theoretically detect the faint effects of being near an undersea mountain. I think the most accurate version coupled two experiments together at each end of the sub which meant a vacuum tube running the length of the boat.
That was 15 years ago or more and I've no idea what became of the research.

about 4 months ago
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Applying Pavlovian Psychology to Password Management

rjforster I think companies should run cracking software (288 comments)

You have complete freedom to use whatever password you wish and to change it whenever you wish but the company has a rack or 3 of kit dedicated to cracking passwords. If yours gets cracked then you get forced to change it. If it gets cracked again your collegues (and manager, and staff) also get told so that they can provide peer pressure/ridicule/helpful advice.
The cracking software can be aware of common passwords, your previous passwords and things like the names of projects you're working on. There can even be a 'submit a crib' internal website where others can upload the criptic post-it that's on your desk to see if it gives password hints.

Depending on the exact situation of your working environment the penalties might be far harsher.

Obviously if you work for a very big company they might use a rather large value of 3.

about 5 months ago
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Fedora 20 Released

rjforster Re:I'm fedup with this (147 comments)

Not in my experience. Over the last 4 years my PC has run every version of Fedora and has /home on a pair of mirrored drives which I set up using anaconda on what I'm guessing was F11. I don't always upgrade as new versions are released but it is running F19 right now.
I grant that "not supported" is different from "it ain't gonna work" but for me at least; it worked.

about 9 months ago
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Georgia Cop Issues 800 Tickets To Drivers Texting At Red Lights

rjforster Re:Officer dickhead is a dickhead. (1440 comments)

Some of that is because the camber of the road (ok, some roads more than others) makes every start a minor hill-start. By applying the handbrake you should be preventing any chances of rolling into the kerb.

I was told to keep it in gear with my foot on the clutch. Now I only do that if I know the cycle time is quite short, otherwise it goes into neutral and the handbrake goes on. I don't impede traffic because I see when the other lights change and am back into first before my light goes green.

Another point is that I hate fecking bright brake lights in my eyes and I am courteous to those that might be stopped behind me.

about a year ago
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The Greatest Keyboard Shortcut Ever

rjforster Re:Huh? What? (506 comments)

1563, hmmm would that mean you registered towards the end of day one or was it day two? I wondered whether there was any point in registering at all and so didn't get around to it until towards the end of day two. I think. It's been a while :-)

1 year,28 days
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Ask Slashdot: Best Software For Med-School Note-Taking?

rjforster Re:get a fountain pen, a good notebook, and good i (217 comments)

I took most of my degree notes with a battered Sheaffer Imperial Flighter which is about as old as me but still writes beautifully. Today I'm never without my Pilot Capless.

about a year ago
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Ask Slashdot: Best Software For Med-School Note-Taking?

rjforster Re:Remember the one hour equals three hours rule. (217 comments)

I can't say that any of my university classes were so dense that there was three hours of information packed into a single lecture. I'd say half of them were about 10 minutes of information packed into an hour-long lecture and obfuscated to make it seem like there was more content that there was.

It's not 3 hours of information. It's 3 hours of your life needed to pass an exam on whatever information was in that hour. So if it were 10 minutes of useful information then the second hour is finding and fully understanding that from within the first hour, if it wasn't obvious. Then nearer exam time another hour reminding yourself about it all and doing a few sample questions to get you ready.

As I put earlier it was only in my final year that I realised just how true this piece of first year (probably first week actually) advice was for my situation. It may well be different for different people studying different subjects but it was uncannily accurate for me.

about a year ago
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Ask Slashdot: Best Software For Med-School Note-Taking?

rjforster Remember the one hour equals three hours rule. (217 comments)

I was told this when I started at university but it took me until my final year to truly grok it.

Each one hour lecture should take 3 hours of your time. One hour in the lecture itself, one hour within the next day or two (at most, ideally same day so things are fresher in your mind) when you annotate the notes you had taken, redraw bad diagrams, look stuff up etc. Don't hope or expect to get 'perfect' notes from the lecture itself. Then finally one hour before the exam to go over that hour of lecture time.

As others have said, pen and paper is king for that first hour in the lecture itself. Anything you try to do with technology should concentrate on the second hour.

about a year ago
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Despite Global Release, Breaking Bad Heavily Pirated

rjforster Re:Too Many Adverts? (443 comments)

Yep. I know people who would rather wait and watch the download without adverts than see it a day earlier on the channel they are paying good money for but with adverts. Most say that a single ad break mid way through the show is acceptable but the 4 or 5 (or more) breaks that you typically get make the shows unwatchable.

about a year ago
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UK Town of Ipswich Remodelled As Zelda Level

rjforster Re:I live in/near Ipswich (53 comments)

This resident thinks it's a dump. But then I only moved here for work and I'm more than willing to move away again for the right other work.

Still, it's a slashdot story which make me say "oooh, I can see my house" so that at least puts a mild grin on my face.

about a year ago
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Chicago Sun Times Swaps iPhone Training For Staff Photographers

rjforster Re:The best camera is the one you have with you (316 comments)

My 5D mk III does. I never use it but it is there. OK it's more a rectangle with the top right corner missing and replaced with a '+' than a square but it is most certainly green and represents full auto mode.

about a year ago
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EFF Makes Formal Objection to DRM In HTML5

rjforster Re:Content moving to apps more of an impediment (270 comments)

I know someone who pays for the channel that shows Game Of Thrones but still downloads it so that he gets to watch the show without adverts.

about a year ago
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If I could change what's "typical" about typical laptops ...

rjforster Right now it would be suspend/resume (591 comments)

The last few kernels have not resumed wireless networking when I wake my lappy up. Hopefully this is just a temporary thing as it used to work just fine.

Prior to a few weeks ago it would be display resolution, glossy screens, noisy fans, mechanically vulnerable power inputs and battery life that I would change first.

about a year and a half ago
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If I could augment my senses (w/ implant or similar) ...

rjforster I'm sure lie detector would be tempting but... (456 comments)

As others have mentioned, it brings up so many issues.

I would like a greater dynamic range to my existing senses. I'd like to be able to not walk into things at night and also not need sunglasses during the day. I'd like to go to concerts and not need earplugs but also be able to hear the proverbial pin drop (obviously not at the same time).
Oooh and polarisation might be a handy vision upgrade.

about a year and a half ago
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Elon Musk Lays Out His Evidence That NYT Tesla Test Drive Was Staged

rjforster Re:Let me get this straight... (841 comments)

Don't forget the sophisticated collision avoidance system that comes as standard or the fact that for small accidents horses are actually self repairing.

about a year and a half ago
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UK ISPs Respond To the Dangers of Using Carrier Grade NAT Instead of IPv6

rjforster Expand TCP port numbers (165 comments)

In jest I once remarked that we should keep IPv4 but rejig TCP to support 128 bits of port numbering (or maybe even more). Each client could have a (formerly) full 16bit range of ports and we could support a bajillion devices and do modulo 2^16 math to 'map' to the ports you're familiar with.

People called me evil.

May I repeat that this was in jest.

about a year and a half ago
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Fedora 18 Installer: Counterintuitive and Confusing?

rjforster At least he could see the partition size boxes (458 comments)

The times (plural) I've tried this installer in VMs or on Netbooks I've not been able to see the partition size box on the right of the screen so I had no way of having any form of custom partition sizing. Now given that the default is to split a disk in half for /home and half for / I think it's pretty reasonable that people might want to give 90% of their big fat disk to their data and a perfectly adequate remaining amount to the OS.

about a year and a half ago
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Slashdot Asks: SATA DVD Drives That Don't Suck for CD Ripping?

rjforster Re:SCSI Plextor (330 comments)

Similar story here. My old (as in 3 PCs ago) yamaha scsi cdrw was the best audio cd ripper I have owned. Much better than the IDE or SATA DVD drives I have had since.
Problem was the scsi card I used was very cheap, but it worked just fine until support was dropped in the kernel. So one day I did an update, rebooted, and swore a lot.

about 2 years ago
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Successful Engine Test in UK For Planned 1000 mph Car

rjforster Re:Shouldn't the title actually say 1609kph? (262 comments)

Even better are car tyre measurements which are in metric (width and profile) and imperial (diameter) at the same time!

about 2 years ago

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rjforster rjforster writes  |  more than 10 years ago

...or were they patentable inventions before I typed them into slashdot on 2003-11-19?

1. Gravity sensors. The problem I used to have was that every time I took my phone from my pocket it came out upside down in my hand. Therefore I suggest a phone where this does not matter. A symmetrical phone body. No up or down, top or bottom. Give it a full size screen with touch sensors that can act as a keyboard or display. Also include a gravity direction sensor. Hence one should just be able to pick it up and use it normally, no matter how it is orientated.
Yes, I've thought of a few gotchas. You ideally need a microphone and speaker at each end of the phone, but can probably get away with one microphone in the center. You might be lying down and so the phone needs to be classically upside down to be useful given the present orientation of your head. In this case include a 'lock' button to hold the orientation. You may wish to disable orientation switching while the phone is connected. What you definetely want (for the kewl kids) is to show how the phone swaps its display around as you invert it.

2. Pushable ring-tones. The kids would love this. Enable the sending of a ring tone to the target phone when you call them. This can be a simple set of tones sent ahead useing very little data in the way a ring-tone can be 'SMSed' to your phone or in modern higher bandwidth networks a mp3 (or equivalent compressed music file such as ogg vorbis) file can be sent. For example if Alice calls Bob. She might prerecord a file of her voice saying "Hey Bob, pick up the phone, it's Alice".
Obviously this would need relatively fine grained permission settings to prevent embarassment. Kids would love this because they could send very bad language to other peoples phones and would find this very funny indeed. In other words it would sell well.

3. Location, time and velocity specific settings. Present generation mobile phones can track your location quite accurately. 3G networks can track your location very accurately. I propose a feature that lets you set the permissions of your phone (ring tone, silence mode, vibrate, divert calls etc) by location.
Examples would be:
a) at home: full permissions, ring tones and vibrations
b) at work: beep once, vibrations
c) inside the meeting room at work: divert to answer phone
d) after 11pm Sunday thru Thursday: divert to answer phone (location information will be this accurate with newer phone generations)
e) moving faster than 10mph within last 3 minutes: divert to answer phone as owner is driving his or her car.

4. A Balance feature for camera phones. Many phones have built in digital cameras now. These phones typically have to be held upright in the hand with the operator viewing the phone display before taking the picture. Some phones have rotating cameras that so that the operator can take pictures of themselves (either posing with friends or as part of a video call facility).
I propose a method of balancing these phones so that a bigger group shot can be taken after a timer delay, much in the way many regular cameras can operate. Wheras regular cameras often have a large flat base to easily allow placement on a suitable flat surface, mobile phones do not balance so easily. I propose two solutions to this problem. First, simple fold out legs can steady the phone. This can be done in many ways, just one example would use a device looking like a minature FM radio antenna than can be extended and rotated on a pivot to the correct angle to balance the phone handset. The second method would use the vibration motor or the phone, which is just an unbalanced rotating mass, or may use a separate, balanced rotating mass the design of which is optimised for this purpose of balancing the phone. The design requires the base of the phone fashioned such that it can fall in only two directions (ie not balanced on a point or rounded point) and correct alignment of the rotating mass. As sensors within the phone detect it falling one way or the other then the motor can be turned to induce angular momentum into the system in an opposite direction to that of the falling motion and thus rebalance the phone.

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