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## Martin Roberts

math, science and tech geek, iOS developer, teacher - husband & very proud dad.

Followers: 1,482

Following: -

Views: 41,598

Added to CircleCount.com: 09/18/2011That's the date, where Martin Roberts has been indexed by CircleCount.com.

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Top posts in the last 50 posts

### Most comments: 4

### Most reshares: 1

2013-08-19 11:46:05 (1 comments; 1 reshares; 6 +1s; )

**The Pythagorean theorem**

a² + b² = c²

Pythagoras was a Greek mathematician who lived about 2500 years ago, and who developed the most famous formula in geometry, possibly in all of mathematics! He proved that, for a right triangle, the sum of the squares of the two sides that join at a right angle equals the square of the third side.

#sciencesunday

### Most plusones: 6

2013-08-19 11:46:05 (1 comments; 1 reshares; 6 +1s; )

**The Pythagorean theorem**

a² + b² = c²

Pythagoras was a Greek mathematician who lived about 2500 years ago, and who developed the most famous formula in geometry, possibly in all of mathematics! He proved that, for a right triangle, the sum of the squares of the two sides that join at a right angle equals the square of the third side.

#sciencesunday

Latest 50 posts

2015-05-21 08:22:39 (0 comments; 0 reshares; 0 +1s; )

this matches my experiences in the tech community. What about yours?

2015-05-18 09:10:34 (0 comments; 0 reshares; 0 +1s; )

All these decades of similar "What's next in the sequence?", I have never seen this interesting one.

2015-05-18 09:07:34 (0 comments; 0 reshares; 0 +1s; )

Just awesome!

I have always loved how something as simple as a pentagon can lead to such non-trivial mathematical connections such as the golden ratio.

2015-05-18 09:04:08 (0 comments; 0 reshares; 0 +1s; )

a great experiment for the inquisitive. Always a great object lesson for students to first try to guess what will happen before they see the answer.

2015-05-17 08:41:48 (0 comments; 0 reshares; 0 +1s; )

Interesting video on how poverty can change your brain.

2015-05-16 11:59:45 (0 comments; 0 reshares; 0 +1s; )

Well have all, sometime in our lives, talked about a regular dice that is biased. But this is a really mind-twisting thought: an irregular dice that is unbiased!

2015-05-16 11:36:42 (0 comments; 0 reshares; 1 +1s; )

fascinating idea: Self-healing concrete.

Bacteria is added as an extra ingredient at the time of dissolving and mixing the concrete. It remains dormant until the concrete cracks and water gets in.

2015-05-16 05:47:19 (0 comments; 0 reshares; 1 +1s; )

Do the five minute Oxford happiness questionnaire to see how happy you are compared to others.

2015-05-16 05:17:44 (0 comments; 0 reshares; 0 +1s; )

I love all geometric proofs of Pythagoras' Theorem. This one being by Perigal (1891)

2015-05-15 12:25:04 (0 comments; 0 reshares; 1 +1s; )

Most jokes are funny as they reflect a degree of truth.

2015-05-15 12:24:13 (0 comments; 0 reshares; 0 +1s; )

an interesting idea, especially with the new trends of infinite scroll.

2015-05-11 08:52:15 (0 comments; 0 reshares; 0 +1s; )

very detailed and insightful commentary on the state of technology.

2015-05-11 08:49:22 (0 comments; 0 reshares; 0 +1s; )

I wonder how many other potential achievements and discoveries have been lost because we failed to give women equal opportunities to shine?!

2015-05-11 08:47:30 (0 comments; 0 reshares; 0 +1s; )

This is a fascinating commentary to remind us that often the greatest acheivements and discoveries begin with people being naturally inquisitive and curious.

2015-05-09 13:17:07 (0 comments; 0 reshares; 1 +1s; )

Cedric Villani, maths Fields Medallist gives a really interesting talk

(I also love his beautiful cursive writing style).

2015-05-09 08:13:57 (0 comments; 0 reshares; 0 +1s; )

This is really cool. Might get some kits to play with my son.

2015-05-09 08:10:20 (0 comments; 0 reshares; 1 +1s; )

Amazing how sophisticated Google's web crawlers are getting.

2015-05-09 08:08:13 (0 comments; 0 reshares; 2 +1s; )

How innovative! Making a waterpark inside an airship hangar!

2015-05-09 07:59:54 (0 comments; 0 reshares; 3 +1s; )

this animated gif makes a nice change from the typical cat GIFs.

2015-05-09 07:58:52 (0 comments; 0 reshares; 0 +1s; )

This guy is very smart. Well worth reading anything he talks about.

2015-05-08 13:48:26 (0 comments; 0 reshares; 0 +1s; )

really interesting article. Well worth the read.

2015-05-08 13:40:35 (0 comments; 0 reshares; 1 +1s; )

Good news and depressing news -- all in a single statistic....

2015-05-08 13:36:43 (0 comments; 0 reshares; 0 +1s; )

I live in a city of only 200k people, seeing interchanges like this is so surreal.

2015-05-03 09:24:11 (0 comments; 0 reshares; 1 +1s; )

How to embed 5 interlocking tetrahedra into a dodecahedron. Funky stuff.

2013-11-01 23:56:03 (0 comments; 0 reshares; 0 +1s; )

Really cute video trailer of the upcoming Lego Movie.

2013-10-24 13:04:10 (0 comments; 0 reshares; 1 +1s; )

Very impressive guy who is working hard and thinking deeply on what is the most effective way to teach school kids to program.

2013-08-16 09:07:03 (0 comments; 0 reshares; 1 +1s; )

I wish i could write code with this much excitement!

2013-02-12 12:43:41 (0 comments; 0 reshares; 0 +1s; )

**Machine Learning used to reconstruct ancient languages**

I think it is cool that Machine learning is being used in so many aspects of society!

2013-02-12 04:22:24 (0 comments; 0 reshares; 0 +1s; )

"These days an absolutely staggering amount of research and development work goes into the very coarsely defined field of “machine learning.” Part of the reason why it’s so coarsely defined is because it borrows techniques from so many different fields. Many problems in machine learning can be phrased in different but equivalent ways. While they are often purely optimization problems, such techniques can be expressed in terms of statistical inference, have biological interpretations, or have a distinctly geometric and topological flavor. As a result, machine learning has come to be understood as a toolbox of techniques as opposed to a unified theory."

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