How I unlocked my Verizon Moto G6 and ditched my iPhone 6 because it was too slow

Recently, I bought a phone for my family visiting, because roaming costs are so incredibly high for no good reason, and because it becomes hard to navigate the world without the internet (booking, GPS, etc.) I bought at $99, and paid a $50 data plan from Verizon (good deal given that the phone the MSRP is $249, that it’s a very decent phone, and that you can use it anywhere with any carrier — it has GSM, CDMA and everything you need.)

On the back of the box, it was mentioned that the phone could be unlocked after $50 had been made. I had just bought $50 of credit for 1 month of 4G with Verizon.

When my parents left, I tried to unlock it. It was a bit confusing, but it did work!

You can find solace in successfully going through automated customer service

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Vision+Light

Somehow my art piece has been accepted! A delightful play on the wavelike behavior of light, and the particle0like behavior of silicon atoms, in a tribute to Malevich. Instant Classic!

Incoherent on coherent

You can now see it at the Vision+Light exhibition on Berkeley Campus, from February 20th to March 14th, 2019

Paul Valéry sur le mensonge

Bonne année 2019!

Ces deux dernières années aux Etats-Unis m’ont beaucoup fait reflechir, sur le plan personnel et politique, à la notion de verité, de transparence et d’honnêté, qui plus que jamais est nécessaire au discours civil.

Au centre de cette réflexion, ces quelques lignes de Paul Valéry, toujours juste.

Mensonge

Ce qui nous force à mentir, est fréquemment le sentiment que nous avons de l’impossibilité chez les autres qu’ils comprennent entièrement notre action. Ils n’arriveront jamais à en concevoir la nécessité (qui à nous-même s’impose sans s’éclaircir).

– Je te dirais ce que tu peux comprendre. Tu ne peux comprendre le vrai. Je ne puis même essayer de te l’expliquer. Je te dirais donc le faux.

– C’est là le mensonge de celui qui désespère de l’esprit d’autrui, et qui lui ment, parce que le faux est plus simple que le vrai. Même le mensonge le plus compliqué est plus simple que le Vrai. La parole ne peut prétendre à développer tout le complexe de l’individu.

– Paul Valéry, Tel Quel

On truth and its perils

What is true, what is false, what is wrong?

With the rise of large scale misinformation, this question has become more and more important, as it seems political parties around the world have reached the escape velocity of facts.

polarization in US politics really goes only one way…

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Hyperloonies

Mr Musk is having a hard time, and even though I have great appreciation for his making engineering look cool again, I won’t relent  as I believe his efforts are misguided.

Nothing can be so amusingly arrogant as a young man who has just discovered an old idea and thinks it is his own. – Sidney J. Harris

Today, I’ll talk about Hyperloop.

edit 12/18/2018: Hyperloop startup Arrivo is shutting down -The Verge — lol

edit 10/10/2019: Was the Ocean Cleanup Just a Pipe Dream? – Outside online
Jenny Allen: “Male privilege in science is a 24 year old guy with no formal training being called a ‘boy genius’, receiving millions of dollars in funding, and referring to qualified female oceanographers as ‘Ms’ instead of ‘Dr.’ when they critique his project.”

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An efficient bureaucracy

What if… the world goes round thanks to an inefficient bureaucracy?

The only thing that saves us from the bureaucracy is inefficiency. An efficient bureaucracy is the greatest threat to liberty.
– Eugene McCarthy

Think about it… the nazis were able to corrupt all of Germany thanks to the legendary rigor of its population – a case famously documented by Hannah Arendt in her series Eichmann in Jerusalem: A Report on the Banality of Evil. (I, II, III, IV, V)

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XFELs as non-kinetic weapons

A family tale goes that my grandfather, who was working in an ammunition factory near Chatellerault which became under German control during WWII. As he was ordered by the German command to paint the factory, he chose to buy buckets of red and white, and paint the factory with a beautiful bull’s eye ornament, what didn’t escape the British RAF notice. They were able destroyed the critical facility that fell into the hands of the invader…

I’m not sure how much of this story is true. I do not have reason to doubt it, however!

As we celebrate the hundredth anniversary of the first world war, I can only think of the many ways, under the promise of surgical interventions, making war has become worse. But maybe — maybe — if we can keep the enemy from dropping bombs on us, we can be safer.
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Art & Science (X) – Science pictures

Vision, and the means to capture it – photography – plays a momentous role in science.
I was much impressed by a remark of Aldous Huxley, that we owe our civilization largely to the fact that vision is an objective sense. An animal with an olfactory sense or with hearing, however well developed, could never have created science. A smell is either good or bad, and even hearing is never entirely neutral; music can convey emotions with an immediateness of which the sober visual arts are inca pable. No wonder that the very word “objective” has been appropriated by optics.
Dennis Gabor – Light and Information
It is therefore fitting to take a look at all the great pictures that have been recorded by all means.
Here is a selection of scientific picture competitions and galleries you might want to have a look at:
I found that The Atlantic and The Guardian usually have beautiful galleries.Astronomy is an obvious domain where picture are breathtaking, but more so is space imaging.
Here are some amazing pictures from the past few years:

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dlsr.org

Hi there!

Preparing for the new generation of synchrotron light source, I’ve just started dlsr.org (Diffraction-Limited Storage Ring), and created relevant articles on Wikipedia (entries for (Diffraction-Limited Storage Ring  and Beijing’s High Energy Photon Source.)

The goal is to have platform to share knowledge and ideas in a format more flexible than conferences and papers (it takes inspiration from Rüdiger Paschotta’s momentous Encyclopedia of Laser Physics and Technology, though it does not aim to be as comprehensive!)

Let me know if you’re interested in contributing!

Confédération des Associations Centrale-Supéléc – San Francisco

(Dear English reader, this post relates to an association of French Alumni in the Bay Area.)Depuis quelques temps, j’aide à organiser le réseau des Centraliens dans la Baie de San Francisco, faisant suite à la réunion des Centraliens a San Diego l’an passé où j’ai fait de très belles rencontres. Cela nous à donné l’envie de renforcer le réseau en l’étendant à toutes les Écoles Centrales, en particulier celles de Pékin, Casablanca et Hyderabad, afin de permettre aux jeunes diplômés et entrepreneurs attirés par la baie de rencontrer des personnes susceptibles de les aider à s’intégrer, leur fournir de bons conseils et à comprendre l’état des affaires (il y de centraliens au sein de nombreuses grandes entreprises comme Apple, Lyft, Google, Uber, Airbnb, Sony or Western Digital.)

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