Iara Vidal is working on her PhD in Information Science at the Federal University of Rio de Janeiro in Brazil. She is an expert in altmetrics (altmetrics are non-traditional metrics proposed as an alternative to more traditional citation impact metrics). This is what she has to say about access to information: I don’t think anyone would deny that ...

Prime numbers are a cryptographer's dream: It's easy to take two very large prime numbers and multiply them, but it's extremely hard to do the opposite. There is no fast algorithm (yet) to factorize an integer into its prime factors, if you try to factor a large prime number you'll have to try every possible number between 2 ...

We have really cool tools to make information and data visible, I find joy in beautiful visualisation of complex information. I see, I learn. But here is what makes me furious: three-dimensional charts. Never, ever make diagrams and charts 3D. NEVER. Here is why: Graphs, diagrams and maps are tools to ask questions. Sometimes they are ...

If I were to give an award for the single best idea anyone has ever had, I had to have to give it to Darwin, ahead of Newton and Einstein and everyone else. It is not just a wonderful scientific idea; it is a dangerous idea. it overthrows, or at least unsettles, some of the ...

For the geo-geeks out there, I have finished my geologic timescale brush; now better and more accurate than the previous one. Download the Illustrator file here Download .EPS file here Included is a swatch folder with all the colours as per the instructions of the International Commission on Stratigraphy: You are welcome to use this in ...

I am guessing we have all heard of the exciting new technology and research were it is possible to print organs. To me this is mind-blowing on so many levels: ponder the implications. We could print entire organ systems, repair damage, replace tissue, digitally mould external and internal organs. Just thinking about what this could ...

I do not read Italian, but I can certainly appreciate these wonderful multivariate visualisations. Valerio Pellegrini made this gorgeous visual representation of Italian Wikipedia use for 2013. Months are distributed clockwise with Italian initial for each month. It has three layers of information and data: the inner level; overall top edits, the second it is ...

I sometimes come across data visualisations that takes my breath away. This is one. Created by the design house Kram/Weisshaar for the CeBit 2014 computer expo in Hannover. Wish I was there. It is of course the sheer size that makes an impact, but the visualisations themselves are amazing, the amount of data accessed mindblowing, ...

What is wrong with "interactive information"? Displaying information with heavy use of animation, interactions and happenings – why is it wrong? Why does video tutorials drive me batty? Looking for a tip in Illustrator, I find endless video tutorials and it annoys me no end. Why? Because all I want is an overview that I ...

A while ago, on a whim, i did some digging into my grandmothers family tree. I found more than I bargained for, as described in the post Noble genealogy. And I decided to make a family tree... A family tree of more then five generations soon gets complicated and it becomes impossible to keep track ...

Once in a while I come across some images that takes my breath away, and make me intensely wish that I had thought about it myself. Art can of course do magic, but the combination of information and art, I feel, somehow takes both to a higher level. Giorgia Lupi Has made these amazing charts ...