jump to navigation

Solar Powered Light-Art December 30, 2005

Posted by techandother in Home Tech, My Projects.
add a comment

rdn’s weblog » Blog Archive » Solar Powered Light-Graffiti Projector

Cool concept. A solar-powered flashlight, basically. Charges during the day, and projects at night. This would be great to use for the numbers on your house. Mount this gadget to the gutter or roof overhang, and have it project the numbers on the house at night so you don’t have to leave outside lights on.

You could probably modify this gadget because you wouldn’t have a need to focus it, just set it once and leave it.

The anti-global-warming machine (it works?) December 29, 2005

Posted by techandother in Marine Tech.
add a comment

Diatom – Wikipedia, the free encyclopedia

It looks as if diatoms might be the missing piece of the puzzle in my idea for an anti-global-warming machine (that also makes electricity).

Here’s the deal. Carbon dioxide in the atmosphere sucks. Plants turn this into oxygen, but we’re killing all of the plants, so we’re in trouble. But 2/3 of the earth is water, and there is a little helper that might be able to help out a lot. According to recent research, it looks like diatoms can eat liquid carbon dioxide and put out oxygen with the help of sunlight and a nutrient-rich environment.

The only problem is that the carbon dioxide we want to get rid of is in the air, and diatoms are in the water. Bring in a large tank of water. If we were to pump carbon dioxide down to the bottom of a tank of water, the pressure at a certain depth would compress the gas into a liquid.

But it won’t help to have a coal-burning electric plant powering the pump, so we can use solar and/or wind power. Recent advances in tidal power are starting to look good too!

Now that the carbon dioxide (we might not need to separate it from the rest of the air, just pump the whole thing down there) is down there, we need to get sunlight and nutrients down there as well.

Nutrients are near the surface of the water, on the ‘top layer’, where the sunlight is. A simple water pump takes care of that. So now we have a layer of liquid CO2 on the bottom of our tank, with circulating water refreshing the nutrients on the bottom.

Getting a lot of sunlight to the bottom could be done with clear walls/windows, if the tank is above ground, or if this system is in the open ocean, a mirror array could focus intense sunlight to the bottom of the array either via fiber optic or just a dry pipe going to the bottom. Once there, the sunlight would be re-distributed through some windows that would have an anti-algae nanotech coating. The sunlight would be split down to normal levels, or maybe x2 brightness, instead of the transport-level 10x or 20x that would fry micro-organisms.

At this point, the diatoms would hopefully start munching on the CO2 pool and give off oxygen. The tank would have to be designed so that CO2 doesn’t over-flow out of the ‘pressurized zone’, and the pump stops pumping when the tank is full.

When the tank can’ take any more CO2, the CO2 pump stops pumping, while the water circulation pump continues. The wind turbine/solar panels/tidal generator could continue making electricity that could be sold. This is especially true at night, where the diatoms wouldn’t be active.

Perhaps this excess energy would be wanted at night when everyone’s electric car is charging?

This is all wishful thinking, but as far as I know, it is possible.

Ocean energy link:
Link

ThinkGeek :: eStarling Wi-Fi Gmail / Flickr Enabled LCD Frame December 28, 2005

Posted by techandother in Uncategorized.
add a comment

ThinkGeek :: eStarling Wi-Fi Gmail / Flickr Enabled LCD Frame: “The eStarling frame is a standalone Wi-Fi LCD photo frame that connects to a wireless network and automatically displays photos e-mailed to it in a slideshow format. Additionally you can specify an RSS photo feed…”

Very cool. All they need now is a fuel cell that will last a lot longer than a battery, and to replace the LCD with an OLED or similar low-power display, and you’ve got a picture that can hang on the wall, with a shelf life (no pun intended) of at least a year, I would think. All they have to do now is enable them to communicte with each other to display like pictures at the same time. (for example, the four frames on the wall would display pictures from a certain vacation, then all of them would switch a few hours later to pictures from last Christmas, etc. Cool effect!)

Quick Vibrating Lockpick – Overview December 27, 2005

Posted by techandother in Uncategorized.
add a comment

Quick Vibrating Lockpick – Overview

A $9.00 tool you can make yourself out of drugstore parts that opens a padlock in about 2 seconds. I actually have one of these hummingbirds lying around…time for a project… :-)

Check out the video too – it’s hilarious:
Video

Free eBook tells what is in the stars December 26, 2005

Posted by techandother in Uncategorized.
add a comment

or, more appropriately, what will be going on above you for 2006…

mininova : Books > Ebooks > What’s Up 2006 – 365 Day’s of Skywatching:

“What’s Up 2006 – 365 Day’s of Skywatching”

This is a free e-book you can download that will tell you if anything substantial is to be seen in the sky that night. Cool!

Merry Christmas? December 23, 2005

Posted by techandother in Uncategorized.
add a comment

People are strange. Every year, you hear about the people who are offended when a Walmart greeter says ‘Merry Christmas’ to them. They don’t believe in the reason for Christmas, so they prefer ‘Happy Holidays’.

Isn’t this a little self-centered? I don’t see this as any different than the following scenarios:

I’m having a good day, so I say ‘have a nice day’ to someone. Well, they object to me assuming that they want to have a nice day, they prefer ‘have a good one’. So everyone should say ‘have a good one’.

See the problem here? It’s not that their belief is the problem. They think I should be saying what they prefer, not what I prefer.

Here’s the thing, though. Every major advance in history was done because someone thought for themselves. So, no, I will greet you how I prefer, and in doing so, I am showing you that I am an individual, and am extending my individuality to you in a show of good faith, this being the holiday and all. Please feel free to respond in kind!

Merry Christmas!

My Hybrid Car: Problem #1 solved! December 22, 2005

Posted by techandother in Automotive, My Projects, ÜberHybrid.
add a comment

I like the idea of a hybrid vehicle, but financially, they don’t make sense for me. If I could retro-fit a used, efficient internal-combustion vehicle, however, it may end up being not only well-performing, but financially sensible, and pleasant to drive! (more…)

Futurama to return?! December 21, 2005

Posted by techandother in Just For Fun.
add a comment

Could it be true?

Would we be so lucky?

If you read, or even are remotely interested in, this blog, chance are you would like (or be remotely interested in) the show Fururama. Think of Futurama as an intelligent version of “The Simpsons”. Well, it still is animated, but if The Simpsons were the animated version of the Three Stooges, and Family Guy (another great show, but what’s up with the dependence on flashbacks lately?) were the animated version of Benny Hill, you could think of Futurama as a cross between Arthur C. Clarke, Isaac Asimov and a non-snooty, futuristic version of Frasier. They also lower the humor bar every now and then, but just enough to do some low-brow stuff without it becoming sickening.

Needless to say, I obviously am a big fan of the show, and would LOVE to see this one come back. The classic episodes are incredibly intelligent, which I believe drew the audience it did. This group of people are pretty demanding, so hopefully the writers would be able to continue on with the quality they have done in the past.

If they were able to continue on where they left off, I could see Futurama easily replacing “The Simpsons” at this point.

Everyone cross your fingers!

Electronic tolling being tested to catch speeders? December 20, 2005

Posted by techandother in Uncategorized.
add a comment

When my home state of Illinois originally rolled out its electronic tolling program, I-PASS, the toll authority, said that the transponders in the vehicles would never be used to track your location, only to collect tolls as you pass through the tolling gateways. This being state government, no-one believed them, and it appears that that day is upon us.

During the last year or so, Illinois has virtually forced its residents to purchase the electronic tolling transponders by doubling the tolls for users paying with cash. For me, that would mean going from $0.40×4 tolls ($1.60 for about a 20-mile commute) to $0.80×4 tolls ($3.20 per day, $16/week, $64/month, $768/year). I can’t afford to pay the extra $384 per year, so I had to purchase the $15 transponder, along with just about every other commuter in Chicago.

Once everyone had the I-PASS transponder, all toll plazas in the Chicago area went under construction to have “open-road tolling”. This basically means that you don’t have to slow down to pay your toll, they get your transponder number as you go underneath the sensor array.

Case in point, there is a toll booth for motorists entering or exiting I-355 to/from I-55. Here is a satellite map of this toll plaza. You can plainly see the open-road tolling lanes on the inside, and the toll booths on the outside, both for motorists without I-PASS, and people with trailers, etc. that have special tolls they need to pay.

9 blocks north of this toll plaza is the 75th street overpass, about a half mile away. What you can’t see on the satellite map is that there are a second set of sensors hidden between the girders underneath this bridge. I wouldn’t have noticed them, if it weren’t for the spotlights that enable a set of cameras to record the rear license plate of cars as they go through.

It does seem a bit odd when you approach the bridge at night. Most bridges are lit from a few fluorescent rods at night, while this one is incredibly bright. It isn’t until you pass under the bridge that you notice that all of the lights are facing with traffic, pointing at the back of the cars as they go through the overpass. It’s blatantly obvious coming the other way, as the lights are shining towards you. There are no lights or sensors on the southbound side.

In the old days, the older I-PASS transponders used to beep when they were read. I think this caught the Illinois DOT by surprise, because some people still have them, and her is now a sign next to the highway, reading “I-PASS Users: ignore beep, you were not charged.”

So what purpose, exactly, would an installation like this serve, if not to catch speeders? Can we expect this on every overpass? Setting up a system like this only seems to serve two purposes, as I can see:

Traffic/Congestion Monitoring
I’m sure this will be IDOT’s excuse for installing more of these. This is completely bogus, since there are already thousands of sensors buried in the roadways that can accurately record traffic conditions. Here is a great implementation of the usage of these sensors, which update every few seconds. Unfortunately for IDOT, this doesn’t give you any personally-identifiable information about the motorists.

Speed Traps
By taking the distance between the sensors (let’s say a half-mile) and taking the posted speed limit (let’s say 60 miles per hour), IDOT knows that it should take you exactly 30 seconds to get from sensor to sensor. If you got there in 25 seconds, they can figure out (via basic math) that you were doing 72 miles per hour.

Now I’m not saying that catching speeders is wrong. The speed limit, however wrong that may be, is still the law. The debate as to safety vs. speed limits could go on forever, and it’s widely known that there are much less speed-related problems on the interstate than on the streets.

Anyway, my problem is with forcing people into the system by jacking up tolls, knowing that you’re going to turn it into a speeding-ticket revenue machine in the near future, and all the while saying that you’re not going to use it for that exact purpose.

In addition, the half mile laid out on I-355 is prone to errors. People stopping at the booth would be able to accelerate all the way to the 75th street overpass, exceeding the speed limit, since their average speed would stay below the limit.In effect, starting from 5 mph at the toll booth enables them to basically ‘earn’ the right to speed later by going below the limit while leaving the toll plaza.

Also, the distance between the sensors is prone to errors. Just one second of delay with either sensor reading (or if one sensor is off by one second compared with the other) would make a computing error of 2.4 miles per hour. (if we used the example data above)

All in all, these sensors seem to be in the testing phase for catching speeders. Due to the problems I list above, anticipate trying to explain yourself when errors occur, and still being fined because you couldn’t explain it in simple-enough terms to your state’s EnforceBot.

Also, if you don’t live in Illinois, don’t laugh. It’ll come to you soon enough.

How to increase your computer speed (part 3) December 19, 2005

Posted by techandother in Software.
add a comment

So far, we have Cleaned off spyware and viruses and
Turned off some of the pretty features in Windows XP. In this next installment, we take it up a notch and turn off some other features in XP that most people don’t need (but some may want).

Firewall
Windows comes with a basic firewall. If you don’t know how your home network is set up, then leave it on. If you have purchased an external firewall for your home network, then you can use that firewall instead of the one built into windows. Familiarize yourself with the web interface of your network firewall, and learn how to operate your network-based firewall before you turn the windows-based one off. By making your network firewall do the work of protecting you, your machine has more time to do other things.

Computer browsing
Windows Xp ‘remembers’ a lot of things in an attempt to have them readily available the next time you use them. In addition, XP automatically tries to guess what you’re going to do next, and busys itself with loading up any imaginable command you might give it on a given screen.

Unfortunately, what ends up happening is that the machine tries to remember so much information, that finding what you want takes longer than just getting the data. You can tell Windows XP to not bother trying to remember some of this information by clicking ‘My computer’ > ‘tools’ > ‘folder options’ > and selecting the ‘view’ tab. Turn off ‘Automatically search for network folders and printers’ and check \Do not cache thumbnails’.

We’re starting to get into the nitty-gritty here, so we’ll save some more for next time when we look at system settings and some services we might be able to turn off. Until next time, happy computing!