I was reading something by a friend of mine about an easy way to remember a large number of passwords. I had some comments on it but I was writing a bit too much to fit in a comment box so I’ve moved it here instead.
The basic idea is that because it’s inadvisable to use the same password across multiple networks because, possibly amongst other things, if someone knows one of your passwords then they have access to everything you do online! So it was suggested that you pick something memorable, for instance you might be a proud supporter of Liverpool F.C., so you take the word “liverpool” and prepend the first letter of whatever service the password is for to that. For example:
And so on…
Now, while in principle this might be an easy way to remember passwords, there are some problems with it, so I’d like to add a bit more. Continue reading →
A tutorial on how to install Ubuntu on your computer is completely redundantbecause it’s really that easy. I’ve installed Windows 7 for people and I’ve installed Ubuntu, as well as several other things. Based on my observation Ubuntu’s installer is the easier of the two.This is what you have to do: Download the disk image from the Ubuntu Website, burn it to a CD, put the CD in your computer and restart the computer. Welcome to Ubuntu!
Edit: Based on some feedback there are some things I would like to add:
It’s that time of year again, when the Ubuntu users eagerly await the next release of their now purplish OS: Ubuntu 11.04 aka the Natty Narwhal. There have been some very big changes in Ubuntu since the last release (which, if you’ve been following Linux news, you’re probably already aware of), if you thought changing the orientation of the window buttons was radical then you’re in for a shock. Continue reading →
My brother’s doing his International Baccalaureate Diploma right now and for one of his Geography assignments he had to make these graphs -cross sections of rivers- he called them geographs because… they’re for geography and because it has fewer words, so that’s what I’ll call them here. He drew them by hand but they got smudged and I thought it would be nice if he could make them digitally, but that’s a lot of work. I then thought it would be good if there was an easy way to do this, and, having found one, I’ve decided to share it with the world so that other IB students can benefit from this too!
What is a GeoGraph?
It’s a bunch of points on a graph that shows the depth at different points of a river the class studies.
A graph looks like this one:
And as I understand, it works like this:
there is one graph for each transect measured at different points on the river
the width of the transect is shown
the width of the graph is scaled to the width of the transect
the depth of the river is shown for different points along these transects
the depth is measured at 5 points along the transect:
at the start of the transect
at the end of the transect
halfway between the start and the end
halfway between the midpoint and the start
halfway between the midpoint and the end
the depth is measured as a negative number
because depth is negative the graph is drawn below the x-axis
the graph is shown as an irregular polygon connecting all points on the graph
there is a line along the bottom of the polygon connecting the first and last points
this line is as low as the lowest point on the graph
That’s a lot of points to consider, and it’s why this graph is not easily done using the graphing functions of your spreadsheet application (for most of you that’s probably MS Excel). A lot of people might get frustrated, or resort to just drawing it in Paint or some other simple drawing program, which is much too much work! Don’t worry there’s a much easier way of doing it, and it’s all described below. Continue reading →