Sunday, May 27, 2012

[6.002x] Final lab session

Hi all,

The final lab session on operational amplifiers is attached!


[Link: Lab worksheet]

* * *

My ambient light detector:


Their light detector:

Others, not quite so pretty:

Also doing a little C programming:

Sunday, May 20, 2012

[6.002x] Complex numbers

Hello all,

For those of you unfamiliar with complex numbers, please take a look at the material here:


Saturday, May 19, 2012

Wiimote whiteboard at Sant school

An "IR pen" was made, with almost no tools. The pen is to be used as part of a Wiimote-based "smart"-whiteboard:

Testing out the first pen directly on a laptop screen:


Later... version 2:

Wednesday, May 16, 2012

[6.002x] Class at Sant school continues!

Hello all,

Many of you are now on your summer vacation from the Sant School. However, the 6.002x program continues into the first week of June, and the engineering lab program at the Sant School continues as well. Please come to our regularly scheduled sessions as before. Thanks!


Mongolian countryside

Panoramas from the Mongolian "countryside":

A nomad and his horse:

Saturday, May 12, 2012

[6.002x] Fifth lab session

Hello again!

I hope you are rested from the physics olympiad testing. This week, I will show you how to use first-order RC and LR circuits as filters, to perform analog signal processing. The lab assignment is attached,


[Link: Lab worksheet]

* * *

MAX294 lowpass filter (schematic from Tom's Physics 123 page):

Thursday, May 3, 2012

Gandan monastery

So far my favorite place in "UB" (Ulaanbaatar), although I've been told that the surrounding area is not the safest:

Inside, he lives here:

And off to the side: