Earth collided with another planet, Theia, creating the Moon

About 100 million years after the creation of our planet, a collision occurred between the Earth and a baby planet, Theia, The smaller planet disappeared inside the Earth, but fragments of the amalgam flew off into space, where they coagulated into a new body: the Moon.

A recent study carried out by researchers from the University of California in Los Angeles (UCLA) has revealed that the collision was strictly head-on, which explains why the chemical composition of Moon rocks is quite similar to that of Earth rocks. If Theia and Earth had collided obtusely, then much of the Moon would have been composed mainly of Theia, meaning that the chemical compositions of the Moon and the Earth would have been significantly different.

Dragon robbers in France are thrown into jail

Four people accused of stealing a young specimen of the Indonesian Komodo Dragon have been thrown into jail, to await their trial.

The accused robbers found their innocent victim in a well-known reptile park in Pierrelatte (Drôme). It appears that their sole motivation for stealing the young lizard was their eagerness to keep the reptile as a pet. However the dumb buggers had no idea of how to look after a Komodo Dragon, and they locked him up in a cellar where he soon died.

There are countless sad tragedies of this kind, which reveal that idiotic specimens of Homo sapiens ignore the elementary nature and needs of certain exotic cousins from the animal world.

To my mind, there's an obvious golden rule:

If you don't understand the animal, don't touch it !

Place in North Sydney where I met up in 1957 with my first IBM computer

Towards the end of 1957, after my second year of studies in the Faculty of Science at the University of Sydney, my student friend Michael Arbib informed me of his recent encounter with the Australian branch of a US company named IBM. Michael had been offered a vacation job with this company, and he invited me to make a similar request. And that's how, in a brand-new North Sydney skyscraper (in 1957, the tallest building in the southern hemisphere), I came to meet up with the IBM 650 machine and a programming language called Fortran. I was therefore just over 17 years old when I started my life-long activities as a computer programmer.

The Miller Street building still exists today, looking small and old-fashioned in the vicinity of modern constructions.

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At that time, to travel between the IBM offices and the central Sydney business zone, I used to take a tram across the bridge.

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In that photo of a pair of tram lines on the eastern (Pacific Ocean) side of the bridge, we're looking south towards the main city. The tram on the right is moving northwards to the destination indicated below the driver's window: Frenchs Road in the nearby suburb of Willoughby, just beyond North Sydney. Further to the left, we catch a glimpse of the rear end of a tram moving towards the city, whose surprisingly low skyline can be seen further on. Those two tram lines were soon replaced—as Sydney residents now realize—by automobile lanes.

Today, as I sit here in the French countryside, in front of my computer, it's most moving for me to write a few lines about that distant corner of the world where I came into contact with an archaic IBM computer in 1957. In fact, I spent little time at that North Sydney address, because the company soon moved to a more convenient building in Palmer Street, Darlinghurst. It was there that I worked for much of the time (followed by a short period in the Lidcombe offices of IBM) up until my departure for the Old World at the start of 1962.

When the guest happens to be carrying a fat checkbook in his back pocket...

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The French president François Hollande makes a diplomatic effort
by wearing appropriate clothes and banning champagne:

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And how many Airbus aircraft do you wish to purchase ?

118 ! That's nice...

Genetic light starts to shine upon schizophrenia

For the very first time in the history of psychiatry, US researchers in genetics and neurology feel that recent studies might reveal the causes of schizophrenia, which has always been a widespread but mysterious affliction in our modern societies. In the USA, there are over two million victims of this psychiatric disorder, giving rise to delusions, emotional withdrawal, hallucinations and a decline in cognitive abilities. Their troubles can be attenuated slightly by medical substances, but cannot yet be cured. Well, promising research has been carried out recently by scientists from the Harvard Medical School, Boston Children’s Hospital and a research institute linked to Harvard and the Massachusetts Institute of Technology, and their results have been published in the journal Nature. But it is still far too early to, in the immediate future, to envisage any revolutionary methods of treatment.

Human synapses between brain neurons, with C4 proteins marked in green.

Researchers examined the ways in which genes can increase a person’s risk of developing schizophrenia. They examined a gene in our immune system called complement component 4, referred to as C4, whose structure varies considerably between individuals. It was found that certain people with specific forms of the C4 gene stand a higher chance of developing schizophrenia.

That risk is tied to a natural process called synaptic pruning, in which the maturing brain discards weak or redundant connections between neurons. And individuals whose C4 genes increase that pruning effect appear to have a greater chance of developing schizophrenia.

Christiane Taubira resigns from the French government

The French justice minister Christiane Taubira resigned this morning, and was rapidly replaced by the Socialist Jean-Jacques Urvoas.

The newspaper Le Monde stated explicitly that she had in fact "slammed the door" on her colleagues, which merely means that she had made a personal decision to leave, as opposed to the idea of being kicked out by the president and/or the prime minister. It's common knowledge that Taubira has been strongly opposed to the government's decision to withdraw the French citizenship of certain terrorists with dual nationality. Indeed, a parliamentary debate will be starting today on that subject, and it's clear that Taubira has chosen deliberately this moment for her resignation.

Christiane Taubira is an exceptionally brilliant individual who has never been accustomed to "suffer fools gladly" (expression invented by Saint Paul in his second letter to the Corinthians).

Lost children in Australia

In my native land, it's Australia Day, and Google offered computer users an appropriate "doodle" :

We see an Aboriginal lady sitting on the ground and pining for her lost children. How in fact did she "lose" them ? Well, that's a terrible chapter of our Australian history...

The art was created by Ineka Voigt from Canberra High School (ACT).

Here, from the Mirror newspaper, are some comments on Ineka's excellent painting:

Her entry, entitled, "Stolen Dreamtime" was created in response to the theme of: "If I could travel back in time I would …"

Ineka wrote that: "... I would reunite mother and child. A weeping mother sits in an ochre desert, dreaming of her children and a life that never was ...all that remains is red sand, tears and the whispers of her stolen dreamtime".

The "stolen generation" refers to the indigenous children who were removed from their families by the government and church missions.

From 1909 to 1969 the Aborigines Protection Amending Act allowed the Aborigines' Protection Board - later the Aboriginal Welfare Board - to take children away from their parents without needing to establish that they were being mistreated in any way.

The children were cut off from their Aboriginal culture and history. Many mixed-race children placed into white families were never told of their black heritage.

In a blog post, Leticia Lentini, brand and events marketing manager for Google Australia, described it as "a powerful and beautiful image" that "helps bring attention to the critical issue of reconciliation in Australia".

However, it has not been so well received by everyone.

Brisbane-based indigenous rights activist Sam Watson has labelled the artwork "enormously disrespectful" and is calling on Google to remove it immediately.

Speaking to the Huffington Post , Watson took particular offence with the topless representation of an indigenous woman, with tribal markings painted on her nude body.

He believes the representation is unacceptable and offers "very plastic caricatures" of his people.

Marvin Minsky has left us

Marvin Minsky [1927-2016]

My first discussion with Marvin Minsky took place in the grounds of MIT (Massachusetts Institute of Technology) at Cambridge (USA) in 1971, when I was looking up individuals who might be prepared to participate in a TV project that I envisaged for my French employer, the Service de la Recherche de l'ORTF. In fact, Minsky never agreed to be filmed in the context of my project. Several years later, Minsky and his wife dropped in for lunch at my place in Paris.

Click here to see an article on Minsky in the The New York Times.