Florence) Nightingale's passion for statistics enabled her to persuade the government of the importance of a whole series of health reforms. for example, many people had argued that training nurses wa...
Perhaps the greatest danger in the way that alternative therapists behave is simply the promotion of their own treatments when patients should be in the care of a conventional doctor. There are numero...
This special was followed one month later by Bart the Genius. This was the first genuine episode of The Simpsons , inasmuch as it premiered the famous trademark opening sequence and included the debut...
„Naštěstí nahoře nevěděli, že Turing je homosexuál, jinak bychom také mohli prohrát válku.
The infinite! No other question has ever moved so profoundly the spirit of man; no other idea has so fruitfully stimulated his intellect; yet no other concept stands in greater need of clarification t...
In my mind, the most noble way to leave your mark on the world is to expand man’s understanding of the world.
The Vigenère cipher was called le chiffre indéchiffrable, but Babbage broke it;
Prove that xn + yn = zn has no whole number solutions for n greater than 2.
Necessity is the mother of invention, then
„Každý, kdo přemýšlí o kvantové mechanice, aniž by se mu zatočila hlava, jí nerozumí.
Po první světové válce se Spojenci nebáli nikoho.
Propose to an Englishman any principle, or any instrument, however admirable, and you will observe that the whole effort of the English mind is directed to find a difficulty, a defect, or an impossibi...
Turing needed more staff, but his requests had been blocked by Commander Edward Travis, who had taken over as Director of Bletchley, and who felt that he could not justify recruiting more people. On O...
First ever military cryptographic device, the Spartan scytale, dating back to the fifth century B.C. The scytale is a wooden staff around which a strip of leather or parchment is wound,
„Než odevzdám tyto dokumenty do rukou veřejnosti, chci říci pár slov těm, jejichž zájem vzbudí, a udělit malou radu, získanou hořkou zkušeností. Zní takto: věnujte hledání jen tolik času, kolik můžete...
The problem looks so straightforward because it is based on the one piece of mathematics that everyone can remember – Pythagoras’ theorem: In a right-angled triangle the square on the hypotenuse is eq...
The fate of the Polish nation had depended on Rejewski, and he did not disappoint his country. Rejewski’s attack on Enigma is one of the truly great accomplishments of cryptanalysis.
I had this very rare privilege of being able to pursue in my life what had been my childhood dream. I know it's a rare privilege, but if you can tackle something in adult life that means that much to...
One-way functions are sometimes called Humpty Dumpty functions. Modular arithmetic, sometimes called clock arithmetic in schools, is an area of mathematics that is rich in one-way functions. In modula...
Significance of the key, as opposed to the algorithm, is an enduring principle of cryptography. It was definitively stated in 1883 by the Dutch linguist Auguste Kerckhoffs von Nieuwenhof in his book L...
Showing 1 to 20 of 168 results