aroberge

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121.
by aroberge 11y ago
Reeborg's World http://reeborg.ca/reeborg.html A modern version of Karel the robot with different programming methods (a Scratch-like interface, a function-based approach, or an OOP based approach) with support for eit
122.
by aroberge 11y ago
Like http://proselint.com/write/ ? ... which is also editable
123.
Supreme Court to hear Google’s appeal in B.C. search injunction case(theglobeandmail.com)
3 points by aroberge 11y ago|0 comments
124.
by aroberge 11y ago
Surely you have seen equation 1 (but perhaps with a slightly different notation). Each dot above an x represent a time derivative. So, the left-hand side is the second derivative of the position with respect to time aka the acceleration, t
125.
by aroberge 11y ago
The proof starts from two sets of equations: 1. Newton's second law (first year undergraduate) 2. Commutation relations in QM (2nd or 3rd year undergraduate) To make the desired connection, one must have seen Maxwell's Equations (
126.
by aroberge 11y ago
Physicist here: yes, photon collisions can lead to annihilation ... and production of a particle--anti-particle pair.
127.
by aroberge 11y ago
It has been acknowledged in the post: it is one of many links prefaced by I’m far from the first person to suggest this. Here are some excellent links:
128.
Ask HN: Best way to provide client-side internationalization support to single-page app
1 points by aroberge 11y ago|0 comments
129.
by aroberge 11y ago
It's optional typing: you don't have to use it with Python 3.
130.
by aroberge 11y ago
Take a 50-kg object (110 pounds) and carry it in your arms for an hour on a flat road. You will have done no work against gravity. You may complain that this is not how the word "work" is used in everyday life - and that you w
131.
by aroberge 11y ago
However, he is wrong about the state of Brython https://groups.google.com/d/msg/brython/NRHEaoxAfgw/xMipOAYN...
132.
by aroberge 11y ago
Physicist's "intuition" (as you put it) is educated by codifying our observations into mathematical equations, using those equations to make predictions, and performing experiments to verify those predictions. Simply 'fl
133.
by aroberge 11y ago
"Relativistic Inertial mass" (m' = ym) is a bogus term invented so as to make the equations look the same as the classical ones in some limited circumstances - namely, when a force is acting in the same direction as the relat
134.
by aroberge 11y ago
> it is really impossible to completely test the theory scientifically. This shows a misunderstanding of what science is about. You can set up control groups, that use different eating methods, but consuming the same amount of calories
135.
by aroberge 11y ago
2.7 is a dead end. Python 3 is now at least 7 if not 8 years old. Brython was obviously created with the future, not the past, in mind.
136.
by aroberge 11y ago
You don't need a treaty like that to drop import tariffs: this can be done by an individual country. This can be done unilaterally without losing any sovereignty - which is not the case for such trade agreements.
137.
by aroberge 11y ago
Really? Can you explain why? Everything I've read, including emails obtained through FOIA points out to increasing rights for corporations at the expense of rights of individuals and weakening of protection for populations on the env
138.
by aroberge 12y ago
In French schools in Canada, the proper notation (e.g. 5$) is used.
139.
by aroberge 12y ago
I wonder what will be the reaction in the EU when Turkey will ask that all links to criticisms of their president be removed from Google's index world-wide, or that other countries outside the EU makes similar demands of Google for top
140.
by aroberge 12y ago
Brython is even better.
141.
by aroberge 12y ago
> It's not a very good proposal; some of the type info goes in comments because it didn't fit the syntax. Actually, the reason why it is put in the comments is that it is implemented as an experimental feature so that its usefu
142.
by aroberge 12y ago
These stats are based on people visiting the Google Play store. They are almost meaningless. I have an Android phone that works perfectly well and is paid for; I don't have money to burn to buy a new phone. I got it after I bought a W
143.
by aroberge 12y ago
I see variations of this, in French and English, every 3 or 4 months or so appearing on some friends posts. Every time, I point out that it is a hoax ... and it doesn't prevent some people from reposting it again some months later.
144.
by aroberge 12y ago
The author of this post starts with an incorrect definition and build his argument from it: "Open" in MOOC does not refer to the software used but the fact that anyone can take those courses (open enrolment).
145.
by aroberge 12y ago
False positives or false negatives in this type of fuzzy correction could be very detrimental to students. Khan Academy is doing an excellent job at what it is currently aiming to do. Doing less well by trying to do more would decrease it
146.
by aroberge 12y ago
I don't know about the country where you live but in Canada, student take some anatomy and physiology classes first before they are admitted into a medical program, and they certainly do not dissect human cadavers in those anatomy cour
147.
by aroberge 12y ago
Whether you find a closed form solution (and, for most realistic systems you will not) or you want to solve it numerically ... you still need to write a set of differential equations. Before you learn about differential equations, you need
148.
by aroberge 12y ago
If you have stretchable ropes, massive pulleys and air resistance, you'll need to be able to solve some complex differential equations which, in the North-American context, would not be taught until 2nd year university. Yet, the simpl
149.
by aroberge 12y ago
I think we do a disservice in introductory physics when we have things like massless ropes that do not stretch, massles pulleys and neglect air resistance. If we teach them those concepts first, how are they going to be able to truly grasp
150.
by aroberge 12y ago
I am puzzled regarding the various rants (by politicians and others) of the type "we must break up Google"... Let me mention a couple of points which I never see addressed by people pushing this idea: 1. There exists a well estab

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