On his show Last Week Tonight, John Oliver discusses the fight between Apple and the FBI about the latter’s demand that Apple weaken its encryption sufficiently to let law enforcement gain access to the data in phones. Meanwhile, other technology companies such as Facebook, Google, and Snapchat are also increasing the security of their products.
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Today March 14 is so-called ‘pi day’ where in the month/day format in the US for the date gives 3/14. The number pi (the ratio of the circumference to the diameter of a circle) is a source of endless fascination because it is so basic and yet so ubiquitous in all areas of science and mathematics and everyday life. Here is a fascinating article by Xiaojing Ye on the search for obtaining increasingly precise values of pi. It contained many nuggets of information that were quite new to me.
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Thanks to reader Reese, I learned that Ray Tomlinson had just died at the age of 74. Who was Tomlinson? He was the person who invented email. In 1971 he was working on ARPANET, the precursor to the internet, and fooling around trying to find more uses for it when he invented it.
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The discovery by the Hubble telescope of a galaxy that is 13.4 billion light years away is an exciting development. This is not only because it is further away than anything we have seen so far but also because it suggests that stars and galaxies were being formed at the very earliest stages of the universe, which is currently calculated as being 13.81 billion years old.
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I have been reading about the increased number of incidents in which pilots of planes report that they have been blinded by laser beams aimed at the cockpit from the ground. I was surprised by this since the lasers one uses in everyday life are quite low in power and it is not easy to aim them. But it turns out that these lasers, which can be easily purchased online, are more powerful than the ones used in meeting presentations and are getting even more powerful. Authorities are treating them as dangerous practices and urging a crackdown.
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Yesterday a federal judge ruled against the FBI in its efforts to get Apple to unlock the phone of a suspected drug dealer. This ruling has an impact on the other case in which the FBI has demanded that Apple unlock the phone of the San Bernadino shooter. The government is using a 227-year old law known as the All Writs Act as the basis for its claim. (Neil Richards and Woodrow Hartzog explain the origins and purpose of this law.)
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I came across this interesting little math problem by Oliver Roeder that I thought I would pass on. I actually worked it out while I was waiting to board my plane on my return from California yesterday.
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It has been announced that scientists have detected gravitational waves for the first time, after a long and arduous search that rivaled the search for the Higgs boson in the difficulty involved even though it did not match it in costs. The announcement came in the form of a paper published yesterday in the journal Physical Review Letters, based on results obtained on September 14, 2015. You can read the paper here.
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In a moment of idle curiosity, I wondered what would happen if for some reason, human beings suddenly became extinct. Not a cheery thought but I was curious about how long it would be before all traces of our existence disappeared so that a new future intelligent species or maybe extra-terrestrial visitors to Earth would see no trace that intelligent life had ever existed because all the artifacts we created had simply decomposed away. It seems hard to imagine since humans have covered the Earth with our creations but surely all things must pass at some time?
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