Love this gadget for my outdoor trips and just for peace of mind on the road. Hint: give it 20 minutes to uplink!
It is not a full featured Personal Locator Beacon, but very useful nevertheless.
For example you can easily geotag all your pictures simply by setting your camera time to GMT and after you come back home download .gpx file of your trip from Spot website into the same directory where you keep pictures of the trip. Now use GPicSync and photos are all geotaged!
You can even share your adventure on internet like this!
The original version of Spot GPS Tracker won 2008 WSJ Technology Innovation Award.
New updated version of Spot GPS Tracker and Satellite Messenger just hit on-line stores...
Friday, September 25, 2009
Sunday, September 03, 2006
Thursday, July 13, 2006
Symbolic Sculptures
John Robinson's Symbolic Sculptures have brought together the artist and mathematician. This graceful sculpture is of two intertwined parts, each of them cut from an ovoid, the symbol of life.
Sunday, December 18, 2005
Collection of cool Google Maps you would have never thought of
This blog http://coolgooglemaps.blogspot.com is dedicated to interesting and cool google maps/mashups!
It is very similar to this one http://googlemapsmania.blogspot.com/
Can't decide wich one was first or wich one is better.
There is one very usefull site
http://map.spieslike.us/school.php
that will help you to find a nearby school!
You can also help to find missing person using
http://map.spieslike.us/missingpersons.php
read more | digg story
It is very similar to this one http://googlemapsmania.blogspot.com/
Can't decide wich one was first or wich one is better.
There is one very usefull site
http://map.spieslike.us/school.php
that will help you to find a nearby school!
You can also help to find missing person using
http://map.spieslike.us/missingpersons.php
read more | digg story
Saturday, December 03, 2005
An ocean current in the North Atlantic is getting weaker
Those who worry about climate change worry about many things: rising temperatures, rising sea levels, changes in rainfall, stronger storms and now this!
So... Gulf Stream now becomes Atlantic El Nino (aka La Ninia) ?
read more | digg story
So... Gulf Stream now becomes Atlantic El Nino (aka La Ninia) ?
read more | digg story
Learn to solve the "Rubik's Cube"
A very colorful, easy, and descriptive tutorial on how to solve the Rubik's Cube.
read more | digg story
read more | digg story
Using simulated annealing to solve the traveling salesman problem
Simulated annealing is an artificial intelligence technique that can be used to solve the traveling salesman problem. This page uses an applet to demonstrate simulated annealing. Full Java source code is included.
read more | digg story
read more | digg story
Computer History - from B.C. to today
Computer History from the abacus to Ebay acquiring Skype.
Pretty Interesting. Just click the dates at the right
read more | digg story
Pretty Interesting. Just click the dates at the right
read more | digg story
Hundreds of Free Textbooks on one website
This is a collection of free textbooks from around the web. The site is non-commercial, easy to browse or search, and has links to hundreds of free books and educational sites in a variety of subjects. Users can leave reviews of the books in the registration-free comment fields.Enjoy!
read more | digg story
read more | digg story
ReserveMy.com: Hotel Search Integration with Google Maps
ReserveMy.com makes hotel search and booking based on a street map integration with Google Maps.
Similar integration of Google Maps and real estate listings from craigslist.org was done by famous housingmaps.com and trulia.com.
It's awesome looking and incredibly useful! Enjoy!
read more | digg story
Similar integration of Google Maps and real estate listings from craigslist.org was done by famous housingmaps.com and trulia.com.
It's awesome looking and incredibly useful! Enjoy!
read more | digg story
Saturday, January 15, 2005
Brontobyte and rumors about Nisababyte
Here is handy table
1 bit = a binary digit
8 bits = 1 byte
1000 bytes = 1 kilobyte
1000 kilobytes = 1 megabyte
1000 megabytes = 1 gigabyte
One gigabyte of information - about a quarter of the memory of an iPod mini - is the equivalent of a pick-up truck load of paper.
1000 gigabytes = 1 terabyte
1000 terabytes = 1 petabyte
1000 petabytes = 1 exabyte
1000 exabytes = 1 zettabyte
1000 zettabytes = 1 yottabyte
1000 yottabytes = 1 brontobyte
1000 brontobytes = 1 geopbyte or is it 1 nisababyte?
1000 geopbytes = is what?
There are rumors on the web that
nisababyte is 1000 brontobytes and a zotzabyte = 1000 nisababytes.
Not sure about it... Any better ideas?
And those who insist that
1 Byte = 8 Bit
1 Kilobyte = 1024 Bytes
1 Megabyte = 1048576 Bytes
1 Gigabyte = 1073741824 Bytes
can use this byte converter.
1 bit = a binary digit
8 bits = 1 byte
1000 bytes = 1 kilobyte
1000 kilobytes = 1 megabyte
1000 megabytes = 1 gigabyte
One gigabyte of information - about a quarter of the memory of an iPod mini - is the equivalent of a pick-up truck load of paper.
1000 gigabytes = 1 terabyte
1000 terabytes = 1 petabyte
1000 petabytes = 1 exabyte
1000 exabytes = 1 zettabyte
1000 zettabytes = 1 yottabyte
1000 yottabytes = 1 brontobyte
1000 brontobytes = 1 geopbyte or is it 1 nisababyte?
1000 geopbytes = is what?
There are rumors on the web that
nisababyte is 1000 brontobytes and a zotzabyte = 1000 nisababytes.
Not sure about it... Any better ideas?
And those who insist that
1 Byte = 8 Bit
1 Kilobyte = 1024 Bytes
1 Megabyte = 1048576 Bytes
1 Gigabyte = 1073741824 Bytes
can use this byte converter.
Math That Makes You Go Wow
For the most part it is site about Moebius Band and Klein Bottle. Very well done!
A Multi-Disciplinary Exploration of Non-Orientable Surfaces
Written and designed by Margaret Boittin, Erin Callahan, David Goldberg, and Jacob Remes for Math 195a at Yale University. December 1998.
A Multi-Disciplinary Exploration of Non-Orientable Surfaces
Written and designed by Margaret Boittin, Erin Callahan, David Goldberg, and Jacob Remes for Math 195a at Yale University. December 1998.
All things Google...
Good starting point is Google Cheatsheet.
More helpful hints on how to use Google.
Search your own PC using Google
Search your own webpage using Google
Seems not working on blogspot... Am I wrong?
Unofficial gmail FAQ
Use gmail account as network drive!
Want to warn you that network drive is experimental software and not official Google service.
Very funny blog about google
Googlefight! Find out what is more popular search on Google.
Simply awesome TouchGraph Google Browser
And finally financial information: search google using stocks:GOOG
More helpful hints on how to use Google.
Search your own PC using Google
Search your own webpage using Google
Seems not working on blogspot... Am I wrong?
Unofficial gmail FAQ
Use gmail account as network drive!
Want to warn you that network drive is experimental software and not official Google service.
Very funny blog about google
Googlefight! Find out what is more popular search on Google.
Simply awesome TouchGraph Google Browser
And finally financial information: search google using stocks:GOOG
The Mathematics of Tsunamis
The simplest theory of water waves that reasonably approximates the behavior of real ocean waves is the system of coupled partial differential equations known as the shallow water wave equations.
What happens when tsunamis surpass the speed of sound?
Newscientist on tsunami
What happens when tsunamis surpass the speed of sound?
Newscientist on tsunami
Friday, January 14, 2005
Zeno's Paradox of Motion
The Dichotomy: There is no motion, because that which is moved must arrive at the middle before it arrives at the end, and so on ad infinitum.
The Achilles: The slower will never be overtaken by the quicker, for that which is pursuing must first reach the point from which that which is fleeing started, so that the slower must always be some distance ahead.
The Arrow: If everything is either at rest or moving when it occupies a space equal to itself, while the object moved is always in the instant, a moving arrow is unmoved.
The Stadium: Consider two rows of bodies, each composed of an equal number of bodies of equal size. They pass each other as they travel with equal velocity in opposite directions. Thus, half a time is equal to the whole time.
And the solution is ...
Series and Convergence
Deconstructing Infinity: An Analysis of Zeno's Paradox
The Achilles: The slower will never be overtaken by the quicker, for that which is pursuing must first reach the point from which that which is fleeing started, so that the slower must always be some distance ahead.
The Arrow: If everything is either at rest or moving when it occupies a space equal to itself, while the object moved is always in the instant, a moving arrow is unmoved.
The Stadium: Consider two rows of bodies, each composed of an equal number of bodies of equal size. They pass each other as they travel with equal velocity in opposite directions. Thus, half a time is equal to the whole time.
And the solution is ...
Series and Convergence
Deconstructing Infinity: An Analysis of Zeno's Paradox
Thursday, January 13, 2005
Sample interview questions for teaching candidates
Why did you decide to become a teacher?
Do you consider yourself a risk taker?
What do you want to do with your life?
What is the last book you read?
Are you an empathetic person?
How can you tell that a person is a good listener?
Are you an objective person?
Some people say you should demand respect. Do you agree or disagree?
Do you believe you should build rapport with students? If yes, how?
How would you rank these in importance and why? Planning, discipline, methods, evaluation.
If a student said she thought you were the worst teacher she ever had, what would you say?
If a student came to you and said, "None of the other students like me," what would you tell him/her?
It is the first day of class, you are writing something on the board and a paper wad hits you in the back, what would you do? Later the same day, if all the students drop their pencils, what do you do?
How do you feel about noise in the classroom? How do you handle noise in the classroom?
How do you feel if a student does not meet a deadline?
How do you encourage students to learn? Can a student be forced to learn?
How do you feel about computers in the classroom?
If I were your principal and we were setting goals for next year, what would they be?
What is the role of the principal? Does a conflict exist between your perception of a principal's role and his/her role as your evaluator?
If you could create the ideal school, what would it be like?
Do you consider yourself a risk taker?
What do you want to do with your life?
What is the last book you read?
Are you an empathetic person?
How can you tell that a person is a good listener?
Are you an objective person?
Some people say you should demand respect. Do you agree or disagree?
Do you believe you should build rapport with students? If yes, how?
How would you rank these in importance and why? Planning, discipline, methods, evaluation.
If a student said she thought you were the worst teacher she ever had, what would you say?
If a student came to you and said, "None of the other students like me," what would you tell him/her?
It is the first day of class, you are writing something on the board and a paper wad hits you in the back, what would you do? Later the same day, if all the students drop their pencils, what do you do?
How do you feel about noise in the classroom? How do you handle noise in the classroom?
How do you feel if a student does not meet a deadline?
How do you encourage students to learn? Can a student be forced to learn?
How do you feel about computers in the classroom?
If I were your principal and we were setting goals for next year, what would they be?
What is the role of the principal? Does a conflict exist between your perception of a principal's role and his/her role as your evaluator?
If you could create the ideal school, what would it be like?
jsMath: A method of including Mathematics in Web Pages
The jsMath provides a method of including mathematics in HTML pages.
It works across multiple browsers for both Windows and the Macintosh.
jsMath uses native fonts, so they resize when you change the size of the text in your browser, they print at the full resolution of your printer, and you don't have to wait for dozens of images to be downloaded in order to see the mathematics in a web page. Complex Analysis Examples.
More jsMath Examples.
I'll give it a try on this blog a bit later...
To be sure there are other options as well....
An XHTML + MathML + SVG Profile
Backwards Compatibility
For HTML 4, SVG drawings can be embedded using the 'object' element. The following example shows how to use the 'object' element to include an SVG drawing via a URL reference with an image serving as the alternate representation in the absence of an SVG user agent:
<--!html>
<--!body>
<--!object type="image/svg+xml" data="drawing.svg">
<--!The contents of the 'object' element (i.e., an alternate image) are drawn in the event the user agent cannot process the SVG drawing. >
<--!img src="alternate_image.jpg" alt="alternate description">
<--!/object>
<--!/body>
<--!/html>
SVG Tutorial: Maths Limited version
It works across multiple browsers for both Windows and the Macintosh.
jsMath uses native fonts, so they resize when you change the size of the text in your browser, they print at the full resolution of your printer, and you don't have to wait for dozens of images to be downloaded in order to see the mathematics in a web page. Complex Analysis Examples.
More jsMath Examples.
I'll give it a try on this blog a bit later...
To be sure there are other options as well....
An XHTML + MathML + SVG Profile
Backwards Compatibility
For HTML 4, SVG drawings can be embedded using the 'object' element. The following example shows how to use the 'object' element to include an SVG drawing via a URL reference with an image serving as the alternate representation in the absence of an SVG user agent:
<--!html>
<--!body>
<--!object type="image/svg+xml" data="drawing.svg">
<--!The contents of the 'object' element (i.e., an alternate image) are drawn in the event the user agent cannot process the SVG drawing. >
<--!img src="alternate_image.jpg" alt="alternate description">
<--!/object>
<--!/body>
<--!/html>
SVG Tutorial: Maths Limited version
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