I like eating bread and butter. The problem is that butter from the fridge is hard and cannot be spread easily without tearing into the bread. So I usually have to plan in advance and keep the butter out a few hours before I eat so that it softens up. And then I put it back after eating because of the belief that if kept out too long, it will go bad.
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As a culture, we have become more used to the idea that people can feel that their bodies do not match their own sense of identity. This is usually manifested in terms of gender and to some extent society has begun to come to terms with transgender people and transvestites, though there is still a long way to go. People are at least aware of them, even if not accepting, and those groups still experience a lot of enormous discrimination and abuse.
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PZ Myers had an interesting post on a topic that I have long been intrigued by and that is how when breeders selectively bred silver foxes purely on the basis of a trait by which they are more tolerant towards humans, the animals change physically too, such as their ears becoming more floppy and their snouts shorter, similar to the way that we believe that wolves in the wild evolved to become the dogs we now have.
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Since the Edward Snowden revelations a year ago, I have been writing quite a lot about encryption although I don’t know much about it. I came across this introduction to the PGP (Pretty Good Privacy) system, a common form of what is known as public key cryptography, that was fairly clear about how it worked in converting the plain text message into the encrypted form called the ciphertext.
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When Apple unveiled Siri, its intelligent digital assistant, people were wowed by what it could do. You could ask ‘her’ to set the alarm or call someone or tell you where to go and was able to deflect metaphysical questions with humor.
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The world of mathematics was agog last week with the announcement of the first woman to win the Fields medal, the most prestigious prize in that field, awarded every four years to two to four people. What was additionally noteworthy is that Maryam Mirzakhani, a professor from Stanford University is originally from Iran.
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Jimmy Carter had his faults as president, the main one being his decision to implement what they must have thought was a clever plan to destabilize Afghanistan so as to covertly draw the Soviet Union, its Cold War adversary, into that country and get bogged down so as to create for them their own Vietnam. That set in motion a train of horrific conflict under which the Afghan people still suffer. [IPDATE: See the interview that Zbigniew Bzerzinski, Carter’s National Security Advisor, gave in 1998.]
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I used to get terribly car sick as a boy but fortunately it went away by itself in my mid-teens. But I know adults who never get over it and this makes life quite difficult for them. But one thing that has been noted is that of you are the driver of the vehicle, you are less likely to feel sick and people have tried to understand why.
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The Woods Hole Oceanographic Institution equipped an underwater drone with six cameras to observe shark behavior in the wild off the coast of Mexico. When the great white sharks thought that the drone was either threatening them or was possible prey, the cameras caught some stunning footage of their reaction.
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We know that sound consists of vibrations in the air or other medium transmitting it and that it causes objects on which the waves impinge to also vibrate, even if we cannot see it with the naked eye. But in theory at least, by closely observing the vibrations of the object, you should be able to reconstruct the sound that caused it to vibrate.
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