Saturday, February 21, 2009

USB Speeds - By version

Version | Speed
---------------------
1.0 | 1.5Mbps
2.0 | 480Mbps
3.0 | 5Gbps
---------------------

Static Shock Voltage

Surprising to know that the voltage in
static shocks is considerably high -
in the range of 1000 - 10,000 Volts.
Fortunately the current is significantly
low (of the order of 5mA). Static charges
are generated when two insulating
materials are rubbed against each other.

Thursday, February 19, 2009

A two step approach to 3D plots

Step 1: Establish two independent 1D plots (X-Y axes) for the given data.
Step 2: Try to relate the two plots and while maintaining the X axis for each plot, evaluate a combined Y axis based on both variables.

Use matlab meshgrid and surf commands to draw a 3D surface.

Wednesday, February 18, 2009

The 2G to 4G Jump

Most mobile operators prefer to stick to their
2G setups for now and looking to switch directly
to 4G networks (WiMAX and LTE). Read more about
this in this article.