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Suggestions & Concerns / Mathematical formulae
« on: September 29, 2016, 10:48:36 AM »
Is there a method of inserting mathematics in a post?
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Technology, Science & Alt Science / Happy birthday Leonhard Euler
« on: April 15, 2013, 12:51:38 AM »
It's the 306th anniversary of Leonhard Euler's birthday today. Not only my hero also my avatar. For those of a mathematical disposition who haven't heard of him google some of his work and boggle at his command of the subject. For those who think they have the ability to reinvent mathematics stay away from him: you're not fit to wipe his arse.
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Technology, Science & Alt Science / A wonderful day for Mathematics
« on: February 08, 2013, 03:55:27 AM »
The 48th Mersenne Prime has just been found.
http://www.dailymail.co.uk/sciencetech/article-2274505/Biggest-prime-number-At-17-MILLION-digits-year-write-hand.html#axzz2KIub8WI0
http://www.dailymail.co.uk/sciencetech/article-2274505/Biggest-prime-number-At-17-MILLION-digits-year-write-hand.html#axzz2KIub8WI0
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Flat Earth Debate / Hoylake windfarms
« on: June 24, 2012, 02:18:04 PM »
Hoylake is a town on the north-western coast of the Wirral peninsular in England. Hoylake looks out across the Irish Sea and from its shore can be seen three windfarms. I was in Hoylake today with a pair of binoculars.
The most northerly of these windfarms is the closest to the shore. Each of the wind turbines in this windfarm can be seen in considerable detail with a pair of binoculars right down to the yellow bases of the turbines.
Turning your head westwards reveals another farm this time a little further out to sea. As you would expect the details on these turbines are not as clear as the first. There is foreshortening of the shafts of the turbines and there is no visible yellow at the base but this may mean that these turbines don't have yellow bases.
The third windfarm is to the south and west of the previous two and is much further out to sea. The foreshortening of the shafts in now considerable but what is more interesting is the appearance of the blades of the turbines. When a blade is pointed upwards all of the blade is visible but as the blade rotates to a downward position its tip is obscured by the sea. As the blade continues on its revolution the tip again becomes visible. Why is the tip of the blade not visible when it is pointing down? It is the same size and shape as when it is pointing up so why does the tip disappear?
The most northerly of these windfarms is the closest to the shore. Each of the wind turbines in this windfarm can be seen in considerable detail with a pair of binoculars right down to the yellow bases of the turbines.
Turning your head westwards reveals another farm this time a little further out to sea. As you would expect the details on these turbines are not as clear as the first. There is foreshortening of the shafts of the turbines and there is no visible yellow at the base but this may mean that these turbines don't have yellow bases.
The third windfarm is to the south and west of the previous two and is much further out to sea. The foreshortening of the shafts in now considerable but what is more interesting is the appearance of the blades of the turbines. When a blade is pointed upwards all of the blade is visible but as the blade rotates to a downward position its tip is obscured by the sea. As the blade continues on its revolution the tip again becomes visible. Why is the tip of the blade not visible when it is pointing down? It is the same size and shape as when it is pointing up so why does the tip disappear?
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Technology, Science & Alt Science / help with images and equations
« on: March 07, 2012, 04:33:26 AM »
I'd be grateful if somebody could point me towards an explanation of how I can include images and equations in my posts.
Thank you in advance,
Mathy.
Thank you in advance,
Mathy.
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