Archive for September, 2012

Disposable lithium battery strip reacting in water

25

Disposable lithium camera batteries (and other batteries) contain a strip of lithium metal which can be extracted and dropped in water for a fun reaction. Be sure to do this in a well ventilated area, and stand far away. Given a large enough piece of lithium, it will begin to react violently and eventually “explode”, as seen in the video.
Video Rating: 4 / 5


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Flamenco

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Flamenco
Laptop Battery

Image by shiladsen
The first day ended with a "welcome" capped by live Flamenco. The dancer was hearing-impaired, She must have felt the beat through the wooden floor. Amazing!

She signed a powerful recitative at the end of the show. It was captivating.

Amusing anecdote: the lights were out in the audience, and at the start of the show one hundred laptops shone like little light bulbs. As things heated up (or more cynically – batteries drained), laptop light bulbs extinguished.

People-watching at Starbucks
Laptop Battery

Image by Ed Yourdon
I always walk past this Starbucks, between 94th and 95th on Broadway, when I walk down to my neighborhood gym. There are always people sitting at the window — sometimes working on a laptop, sometimes reading a paper, sometimes carrying on a conversation with their friends, and sometimes staring out the window at me.

In addition to the people, you’re also seeing the reflection of the stores and buildings across the street, behind me. As for me: I cleverly positioned myself right in front of the vertical steel bar in the middle of the picture, so you wouldn’t see my reflection…

Note: this photo was published in an Aug 2009 Mahalo blog titled "Advantages of Steel Buildings."

**********************

This is part of an evolving photo-project, which will probably continue throughout the summer of 2008, and perhaps beyond: a random collection of "interesting" people in a broad stretch of the Upper West Side of Manhattan — between 72nd Street and 104th Street, especially along Broadway and Amsterdam Avenue.

I don’t like to intrude on people’s privacy, so I normally use a telephoto lens in order to photograph them while they’re still 50-100 feet away from me; but that means I have to continue focusing my attention on the people and activities half a block away, rather than on what’s right in front of me.

I’ve also learned that, in many cases, the opportunities for an interesting picture are very fleeting — literally a matter of a couple of seconds, before the person(s) in question move on, turn away, or stop doing whatever was interesting. So I’ve learned to keep the camera switched on (which contradicts my traditional urge to conserve battery power), and not worry so much about zooming in for a perfectly-framed picture … after all, once the digital image is uploaded to my computer, it’s pretty trivial to crop out the parts unrelated to the main subject.

For the most part, I’ve deliberately avoided photographing bums, drunks, drunks, and crazy people. There are a few of them around, and they would certainly create some dramatic pictures; but they generally don’t want to be photographed, and I don’t want to feel like I’m taking advantage of them. I’m still looking for opportunities to take some "sympathetic" pictures of such people, which might inspire others to reach out and help them. We’ll see how it goes …

The only other thing I’ve noticed, thus far, is that while there are lots of interesting people to photograph, there are far, far, far more people who are not so interesting. They’re probably fine people, and they might even be more interesting than the ones I’ve photographed … but there was just nothing memorable about them.

IMG_7376
Laptop Battery

Image by shiladsen
The first day ended with a "welcome" capped by live Flamenco. The dancer was hearing-impaired, She must have felt the beat through the wooden floor. Amazing!

She signed a powerful recitative at the end of the show. It was captivating.

Amusing anecdote: the lights were out in the audience, and at the start of the show one hundred laptops shone like little light bulbs. As things heated up (or more cynically – batteries drained), laptop light bulbs extinguished.


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How to replace the hard drive on a Toshiba laptop

25

I was digging around inside my Satellite, and figured I’d educate a little bit.


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BATTERY TEST DURACELL ENERGIZER & RAYOVAC WHICH 1 LASTS LONGEST

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This is a true time laps battery test. All factors were the same. See who wins! This was done twice and the flashlights / battery brands were switched to see if that made any difference. None. Let me know what you think. Thanks. The flash lights were .00 ea incandescent and the batteries…
Video Rating: 4 / 5


120%+ SUPER BATTERY LIFE! Learn about Laptop Battery Life at LaptopBatteryLife.com

BATTERY TEST DURACELL ENERGIZER & RAYOVAC WHICH 1 LASTS LONGEST

25

This is a true time laps battery test. All factors were the same. See who wins! This was done twice and the flashlights / battery brands were switched to see if that made any difference. None. Let me know what you think. Thanks. The flash lights were .00 ea incandescent and the batteries…


120%+ SUPER BATTERY LIFE! Learn about Laptop Battery Life at LaptopBatteryLife.com

Fretting About the Tenuousness of My Connection with the World

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Fretting About the Tenuousness of My Connection with the World
Computer Battery

Image by Madison Guy
Back in the office, obsessing about the important things — such as, if that little cord on the power supply to the iBook breaks, I’m dead. These days the battery is only good for a half-hour or so. Am I worrying too much? Sure, it looks cool — but will it last? Does Steve Jobs sacrifice too much for style? The eternal Apple questions. . . Meanwhile, whenever I pack it up, I’m careful not to twist the cord if at all possible.

Project 365: Day 13/365, August 21, 2007


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How to Recharge Batteries

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The right kind of batteries are never around when you need them. I’m Mark Erickson, and this is Infinite Solutions: Home Edition. In this episode, I’ll show you how to recharge dead batteries using other types of batteries that still carry a charge. IMPEDANCE RATIO CORRECTION: 2AA = 3 9V Need more help? Contact me at www.marksinfinitesolutions.com
Video Rating: 4 / 5


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The main menu

5

The main menu
Laptop Battery

Image by Mageos89
The main menu

Experiencing Technical Difficulties
Laptop Battery

Image by The Doctr
Sorry everybody. Looks like I’ll be out for a little while due to technical difficulties. Let me list all the problems Ive had just in the past month:

1. Laptop power cable caught fire. I was on call at the hospital, in my call room and smelled smoke. I looked around and same my PowerBook’s cable sparking & smoking. Yeah. I haven’t gotten a replacement yet.

2. My iPod battery stopped holding a charge. Not gradually like they normally do, but all of a sudden. I waiting for a refurb’d one to come in the mail.

3. My in ear headphones that I use on stage and for my iPod broke. I go thru those every couple years, guess time was up.

4. I dropped my phone and cracked the screen. Luckily, the SD card slot stopped working as well, so insurance covered it. And they didn’t have any more XV6800′s, so they gave me an HTC Touch Pro instead for my deductible. Not bad for an upgrade.

5. And the newest and most annoying: my desktop (a PC) has decided it’s either a) not going to boot or b) if it does boot, it’ll shut itself down about 5 min later. Since that’s where I’ve been doing all my photo stuff, I’m kinda screwed until it’s fixed. I was going to get a new computer this summer, I might move that up since my desktop is about 6yrs old now.

Anyway, I’m still taking photos. I’ll see you guys when I see ya. I’ll still be on Facebook (since I can access from my phone), so if you need your Doctr fix, find me there.


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Converting Computer ATX Power Supply to Lab Bench Power Supply

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Converting Computer ATX Power Supply to Lab Bench Power Supply

Small tutorial on Computer ATX Power Supplies. How to use them, how to connect them in series, in parallel. What is 12V rails? Is it possible to connect 12V rails together? ATX connector wiring explained. What is difference between old computer power supplies and new ones? And finally how to make Lab Bench Power Supply from Computer ATX Power Supply. ADDITIONAL INFO & PHOTOS: jumperone.com ATX WIKIPEDIA PAGE: en.wikipedia.org And you can find some more cool stuff on www.jumperone.com


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Acer TravelMate 3200

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Acer TravelMate 3200
Computer Batteries

Image by Calvin Che

Almost finished
Computer Batteries

Image by sylvar
This is what our server room looks like now. The batteries on top of the rack will eventually be somewhere else, lest they drip onto our hardware in case of battery damage.


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