Sunday, April 3, 2011

Apple Mac multi-user environment

Getting the most out of a machine is one of objectives.
When I purchased the Mac laptop last year, I was not aware of its multi-user capabilities.
Mac allows the creation multiple user account and provides a very helpful Parental control
capabilities. These two features are available user System Preferences.

It is possible to be logged in from multiple user account simultanesly. Example:
One can record TV shows from account while doing some other account at the same time.

Parental Control provides a very granular controlling mechanism:
  • Apps
  • Web
  • People
  • Time Limits
    • Weekday time limits
    • Weekend time limits
    • Bedtime
  • Other

Book Scanner Stabilizer

Book Scanner Stabilizer by sumantamandal
Book Scanner Stabilizer, a photo by sumantamandal on Flickr.

The book scanner platform has a tendency to move during the page flipping process.
The movement of the platform changes the orientation of the page relative to the camera. In order to prevent the movement of the platform, I took pieces of 2/4 wood and cut notches in them. The scanner platform legs are inserted in the notches. The 2/4 is anchored to the workbench using hold fast.

Friday, March 11, 2011

Unlock Sony e-book reader PRS-500

When I reached home this evening, I found out that my younger son has turned on the lock feature of the Sony e-book reader. No one in my household knew the four digit code to unlock the device. This device is exclusively used in our household to store cooking recipes.

In a world loaded with processed food, cooking recipes play a vital role in our self-sufficiency goals.

Steps to unlock the device:
(1)Hold the reset button at the back of the device for more than 3 seconds.
(2)Slide the power switch to on position. The device will display 'Starting up'
(3) As the device is showing 'Starting up', press the + Volume button and the Mark button simultaneously. The Mark button is located at the bottom of the device near the big fat page circular button. The volume button is on the side.
(4) The device will ask you, if you are ok with deleting all the files. Press the '5' button to say Yes.
(5) All files get deleted from the device. Restart the device by sliding the power switch to on position.
(6) Plugin the USB cable to your computer to copy all files back to the device.

This task took about 5 minutes and all recipes are back on the e-book reader and ready for use!



Sunday, February 27, 2011

Garlic Plant


GEDC0358
Originally uploaded by sumantamandal
I planted garlic cloves 2" to 3" under the surface in 10" pots back in September-October. The warmth of last couple of weeks has done wonders. I can see green shoots in four out of the six garlic cloves that I planted. The sub-freezing temperatures of winter did not kill the garlic. I have read on the web that the cold of winter is needed to start the side buds. The side buds grow and swell become cloves.

Sunday, February 20, 2011

Kindle DX Cover


GEDC0358
Originally uploaded by sumantamandal
Kindle DX is the largest (9.7" Display) e-book reader in the market today with a good ecosystem of publishers. We received this device about a month back and since then it has become the most popular device in our household. Unlike other electronic reading devices like monitor, laptop, this device is meant to be held in hand for hours.

Human hand is not used to holding plastic devices for hours. We are more used to holding paper books sometimes with paper hard cover or sometimes with fabric. Fabric/paper has more natural feel to it than a shiny piece of plastic. A cover for the device also helps to protect it from daily wear and tear.

The covers available for this model of kindle are either too expensive (over $50) or not in stock.

I had some denim fabric lying around (about a yard of fabric). I went to the local fabric store and picked up 1" wide elastic to secure the kindle device to the back cover. The black elastic was stitched to the four corners of the back cover. Card board from the packaging material was inserted between fabric layers to provide the necessary stiffness.

It took me an hour to complete this project. This is relatively simple project for someone with average sewing skills on a sewing machine.

This cover has been in constant use for last 2 weeks and its still holding strong.

This kind of cover can be made for any e-book reader. Borders filed for chapter 11 bankruptcy last week. It seems that book publishing business is moving away from paper as e-book readers and tablets get more adoption in the market.

You can get really creative with the type and color of fabric for this project. Please try and share your project images.

Wednesday, December 29, 2010

Weight Loss and Staying Healthy

Maybe this topic is a little detour from the goal of this blog. A closer look at the topic may change your opinion.

Please allow me to make my case.
  • In a world of diminishing resources, it would become very difficult to manufacture anti-biotics.
  • Obesity leads to large number of health issues. This is very well documented in the medical world.
  • Staying healthy is one of the very important self sufficiency missions.
Earlier this year, I started with the goal of losing 20% weight to bring my weight to the normal level. I started running on weekdays at the gym for 30 minutes. As time progressed, I increased my running speed gradually. After loss of 10% weight, I started controlling my portion size.

I'm very happy to say that I met my target by end of the year. Now I have to maintain my weight at the current level. I plan to continue to run daily.

Someday, if we are hunting and are not fast enough then we may not have our next meal :)

Sunday, December 5, 2010

Building Block


Building Block
Originally uploaded by sumantamandal
Cut a couple of cubic sections using a hand saw from a 2X2 lumber. Drilled a 3/4" hole on one of them for a circular mortise using a Frostner bit. The tenon is made using a tenoning bit on the drill press. These are the basic wooden building blocks out of which bigger structures can be assembled by kids. Simple, inexpensive and lot of fun to make and use.