Portfolio Category: Science

Anyone who has been caught in the rain knows that weather forecasting has its limits and is often wrong.  Long range weather forecasting is not simply a matter of looking at the upstream weather and waiting for it to arrive.  Conditions change over time, height and terrain, so there is a limited time for predictions…

Learning about physics is enhanced by experimentation, where measurement of actual events provides a verification of theories.  A set of simple physics experiments can help teach us about things such as length, area and volume measurement, the acceleration of gravity, oscillations, magnetism and light.  The experiments can provide quantitative evidence when instruments of length, time,…

Chaos is a relatively modern topic in physics and mathematics. To summarize, physical systems modelled with simplified linear equations produce answers that are regular such as a sine wave oscillation.  Experiments verify this over a short time.  But for longer times, it appears that the observed behavior diverges and this discrepancy grows.  This is attributed…

A primary tool for biological research is cell culture, where cells are grown in a medium under controlled conditions such that variations in an external agent can be investigated for effects.  The common model of cell culture is defined by four phases or modes, namely lag (relatively no change), logarithmic phase (cell divisions, exponential growth),…