Mathematics now plays a fundamental role in modelling market movements [see this week’s That’s Maths column (TM067) or search for “thatsmaths” at irishtimes.com].

## Posts Tagged 'Applied Maths'

### Modelling the Markets

Published May 7, 2015 Irish Times Leave a CommentTags: Algorithms, Applied Maths, Computer Science

### For Good Comms, Leaky Cables are Best

Published April 16, 2015 Irish Times Leave a CommentTags: Applied Maths, History, Wave Motion

A counter-intuitive result of Oliver Heaviside showed how telegraph cables should be designed [see this week’s *That’s Maths* column (TM066) or search for “thatsmaths” at irishtimes.com].

### You Can Do Maths

Published March 19, 2015 Irish Times Leave a CommentTags: Applied Maths, Arithmetic, Education, Maps, Social attitudes

Bragging about mathematical ineptitude is not cool. There is nothing admirable about ignorance and incompetence. Moreover, everyone thinks mathematically all the time, even if they are not aware of it. Can we all do maths? Yes, we can! [See this week’s *That’s Maths* column (TM064) or search for “thatsmaths” at irishtimes.com].

### Earth’s Shape and Spin Won’t Make You Thin

Published November 20, 2014 Irish Times Leave a CommentTags: Applied Maths, Geometry

Using a simple pendulum we can determine the shape of the Earth. That amazing story is told in this week’s *That’s Maths* column in *The Irish Times* (**TM057** or search for “thatsmaths” at www.irishtimes.com ).

Continue reading ‘Earth’s Shape and Spin Won’t Make You Thin’

### Light Weight (*)

Published October 30, 2014 Occasional Leave a CommentTags: Applied Maths, Astronomy, Mechanics, Physics

Does light have weight? Newton thought that light was influenced by gravity and, using his laws of motion, we can calculate how gravity bends a light beam. The effect is observable during a total eclipse of the sun: photographs of the sky are compared with the same region when the sun is elsewhere and a radial displacement of the star images is found. But the amount predicted by Newton’s laws is only half the observed value.

### How Big was the Bomb?

Published September 18, 2014 Irish Times 1 CommentTags: Applied Maths, Fluid Dynamics, Physics, Wave Motion

By a brilliant application of dimensional analysis, G.I.Taylor estimated the explosive energy of the first atomic blast, the Trinity Test (see this week’s *That’s Maths* column in *The Irish Times, *TM053, or search for “thatsmaths” at irishtimes.com).

### Sunflowers and Fibonacci: Models of Efficiency

Published June 5, 2014 Irish Times 4 CommentsTags: Algorithms, Applied Maths, biology, modelling

The article in this week’s *That’s Maths* column in *The Irish Times* ( TM046 ) is about the maths behind the efficient packing of sunflowers and many other plants

Strolling along Baggot Street in Dublin recently, I noticed a plaque at the entrance to the Ibec head office. It showed a circular pattern of dots, reminiscent of the head of a sunflower. According to the Ibec website, “The spiral motif brings dynamism … and hints at Ibec’s member-centric ethos.” Wonderful! In fact, the pattern in the logo is vastly more interesting than this. Continue reading ‘Sunflowers and Fibonacci: Models of Efficiency’