Using the methodology explained in two previous posts (this one and this one), one could deduce on 23 September that between 10,000 and 40,000 infected per week could have gone undetected during that month. If […]
In this encyclopaedia of the crime novel that is Sangre en los estantes by Paco Camarasa (1950-2018), Michael Connelly (1956-) is described as a writer who has managed to update the classic detectives with whom […]
Among integers, prime numbers, whose only divisors are one and the number itself, are at the top of mathematical interest. The Indian mathematician Srinivasa Ramanujan began the study of the numbers that we can place […]
Can we colourize the natural numbers with a finite number of colours such that, for all \((a,b)\ne(2,2)\), the colour of the sum \(a+b\) is different from the colour of the product \(ab\)? (The exception is […]
General information on fires A fire is any uncontrolled and unwanted ignition outbreak. Fires can affect living beings and objects of any kind and can cause very serious damage, irreparable in many cases. Fire has […]
As we were saying yesterday… Mathematics and its outreach must go on despite coronavirus. Moreover, during the confinement that we have suffered between March and June, Mathematics has played a very important role in the […]
As usual since March, most of us have been concerned about the development of COVID-19. After a pause of a couple of months in which the pandemic seemed to take a short break thanks to […]
We have posted several entries in this blog on Galileo’s famous phrase that mathematics is the language of the universe (this one and this one); so it would seem that the question in the title […]
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