Archive for the ‘applied engineering’ Category

Bamboo bicycle – beautiful and functional

September 3, 2017

Imagine a handmade quality bicycle made with a bamboo frame.  The picture below shows a 2-speed cruiser, using a British step-back hub.  Each bamboo joint is glued and wrapped with 100 wraps of polycarbonate fiber reinforced tape.  Shown in the picture is Richard Harkness who made this bike with his own hands under the mentorship of someone who had made about 100 of these amazing bikes.  Notice the bamboo basket and the bamboo bike stand in the foreground.  The green rims complement the green bamboo beautifully.

Don’t try making this bike without a proper jig and under expert supervision; it is not an easy construction.  And by the way, it is not a cheap alternative to a standard bicycle, but it is unique and it is a conversation piece.  It is a work of art.

Bamboo Bike



Investment Decisions – Brains Vs. Computers; Which is Better?

June 13, 2017

The two points of view represented below are both well reasoned, conflicting, and cogent, but can they both be right?  The experts currently disagree, but maybe one day the question will be answered definitively.  For now, it makes for an interesting debate, and only time will tell who is right.  Today’s answer may not be tomorrow’s answer.

A key question is how much data does one need in order to make smart investment decisions.  Those who believe best decisions come from analyzing tons of data lean towards computer algorithms, while those who think smart evaluations don’t require looking at every piece of data lean toward human understanding and interpretation.

The term “quants,” refers to those quantitative analysts who crunch the number and are more reliant on computers and algorithms.

Why Brains Are More Reliable Than Machines – WSJ

Quants_ Best Strategy Is From the 17th Century – WSJ

Using a Computer Simulator to Improve Place Kicker Performance

June 15, 2016

This 2 minute video explains how computer simulators in a lab can help a kicker improve his form.

Metric System of Measurements – Conversions

June 8, 2016

Centigrade and Fahrenheit conversions in addition to table of conversions between the Metric System and the British System of Measurements.

click here:  Metric system of measurements


How to measure the flow rate of a stream

January 31, 2016

Calculating the flow in a stream could be a design consideration, and sometimes it is just for the sake of the record, but the attached link describes how it is done.

SpaceX hard landing and explosion video

January 18, 2016

Elon Musk’s SpaceX had a successful launching of a scientific satellite into orbit, January 17, 2016.  The landing on an ocean barge failed and the booster rocket toppled and exploded after coming down vertically on its hot end.  See the video of the launch and failed landing in 1:30 minute video

100th Anniversary of the General Theory of Relativity

November 6, 2015

Without Albert Einstein, We’d All Be Lost – WSJ

On the 100th anniversary of the General Theory Relativity, it is worth taking a moment to remember Albert Einstein and his great contribution to modern society.  Our GPS travel aids, and our understanding of the cosmos all go back to the original work of this great genius.

Red light cameras, and how long was that yellow?

November 4, 2015

For the first time in 30 years, the Institute of Transportation Engineers is reviewing a proposal that could become a recommended standard for determining the proper duration of a yellow light signal.  Going into the formula is not only the actual speed of the traffic, but also the incline of the roadway and drive perception and reaction time.  This is all made more critical today because of red light cameras and possible litigation.

For the full article in the Wall Street Journal, click here.

With Yellow Lights, Timing Is Everything – WSJ