
Logic
circuits.
Binary logic elements are the basic building blocks for all digital devices.
This project consists of creating logical circuits using elementary logic
"gates" to effect computer calculations and robotic control. (Contributors:
wak, mjk.)


Diffusion
processes. What do the spreading of a toxic chemical, the cooling of a hot rock, and
the absorption of medicine through the skin have in common? They are all
the results of diffusiona process which moves chemicals or heat from regions
of high concentration to regions of low concentration. Explore these phenomena
using Diffusion Simulator a tool for modeling and analyzing diffusion
processes. (Contributor: mjk.) 

Drilling
for oil.
One of the problems of petroleum engineering is determining the topology
of an underlying oilbearing stratum. In this exercise, the goal is to find
this stratum by drilling a sequence of pilot holes and deducing its contour.
(Contributors: ckg, wak, mjk.)


Robotic
arm control.
This is a project involving the control of a twosegment robotic arm. The
objective is to program the rotational motions of the segments so that the
tip of the robotic arm traverses along a specified path. (Contributor:
mjk.) 

Heat
transfer in a duct.
Deduce the rate at which heat is transfered from a heated, ribbed surface
in an air duct. The project centers on obtaining measurements from interference
holograms obtained during the running of an actual experiment. (Contributors:
mjk, ch.) 

Bridge
designer.
Design a truss bridge. Specify loadings and support nodes, and obtain the
tension and compression forces on each of its members. (Useful for many
statics problems, as well.) (Contributor: mjk.) 

How
many trees?
To obtain the timber value of a large remote area, estimate the number
of trees from a Landsat imagea problem in statistical sampling. (Contributor:
mjk.)


Sound
propagation.
Sound propagation is affected by wind, temperature, and surfaces. Evaluate
these effects by following the trajectories of acoustic rays through an
adjustable propagation medium. (Contributors:
mjk,phbb.) 

Heat
conduction.
When heat is applied at one end of a metal bar, it is distributed by thermal
conduction along the length of the bar. If the bar is not uniformly conductive,
as in a bar with nonconstant crosssectional area, then that distribution
of heat is affected. Can you deduce the crosssection of a bar from temperature
profiles or probes? (Contributors: mhl,mjk.)[NOTE:
This simulation uses JAVA frames whose implementations are not uniform across
all Web browsers. Consequently, there will be minor operational differences
and visual differences between earlier and later versions of MSIE and Netscape.]


Probability
distributions.
Probabilistic events occur throughout nature and science: measurement errors,
molecular diffusion, games of chance all involve probabilistic events.
How outcomes are affected by such events are estimated through the mathematics
of statistics and probability. In this simulation, create mathematical expressions
which contain random elements and observe the distribution of outcomes.
(Contributors: jww,mjk.) 