mjtokelly's comments

mjtokelly | 13 years ago | on: How to directly upload files to Amazon S3 from your client side web app

Sounds like my understanding must be out of date as of this year! (Which makes me very excited about your upcoming library.) My conclusion was based on research ~1 year ago finding no OSS or commercial software supporting it, and forum posts for those projects by developers sadly explaining why they just couldn't do multipart yet.

My bad experience with files disappearing was entirely with web-based POST requests, ~2 years ago. Large file transfer from EC2 to S3 was reliable, but our POST requests on slower connections (even those that were very reliable) would return with a false report of success.

mjtokelly | 13 years ago | on: How to directly upload files to Amazon S3 from your client side web app

Direct uploading like this has been possible for at least two years. However, in our tests it turned out that Amazon was silently losing some files >100MB (and almost all files ~1GB).

On the AWS forums it was clear that AWS was aware of this consistent problem, but was not able to fix it, and not willing to document it.

They eventually released "multipart upload", which remains the only reliable way to get large files to S3. Unfortunately, multipart upload is nearly impossible to implement as a web app (short of resorting to e.g. Java).

mjtokelly | 14 years ago | on: The Trouble with Bright Kids

I was desperately bored in high school, and my solution was starting college early:

http://www.simons-rock.edu/

At Simon's Rock, the whole entering class consists of students who just finished 10th grade. In my experience there, self-selected 16-yr olds given the opportunity and expectation to live like adults mostly rise to the occasion.

That advice comes a bit late, given you have just 6 months of high school left. For you I would say two things:

1) It Gets Better

2) You can do anything for just 6 months.

Hang in there!

mjtokelly | 16 years ago | on: Roger Penrose Says Physics Is Wrong, From String Theory to Quantum Mechanics

What you say is well-put, but to nitpick the last paragraph: the limits of quantum mechanics are well-established. QM is a special case of quantum electrodynamics, which is a low-energy special case of the Grand Unified Theory.

http://en.wikipedia.org/wiki/Quantum_electrodynamics http://en.wikipedia.org/wiki/Unified_Field_Theory

While the latter is not fully fleshed out, its uncertainty only begins in circumstances far weirder than what gives Roger Penrose pause.

Penrose says that "The [QM] equation should describe the world in a completely deterministic way, but it doesn’t." But work such as Bell's theorem shows that no deterministic equation could ever be consistent with quantum mechanics:

http://en.wikipedia.org/wiki/Bells_theorem

mjtokelly | 16 years ago | on: Mathematica vs. Matlab vs. Python

Note that this article is dated 2005. Much has changed since then--for instance, Python has migrated almost universally from Numeric to NumPy for scientific computation.

mjtokelly | 17 years ago | on: Ask HN: Is there a SICP of biology?

When I started out in a systems biology lab with a physics and CS background but no biology, they gave me this book:

Molecular Biology of the Cell http://www.amazon.com/Molecular-Biology-Cell-Alberts-Al/dp/0...

The description of the DNA --> RNA --> protein pipeline was really satisfying to someone with my background, full of codes, error-correction algorithms, and rate-limiting steps. I think of it as the Numerical Recipes of biology.

mjtokelly | 17 years ago | on: Ask HN: I'm in 10th grade and I hate school. Any suggestions?

I left HS after 10th grade to go to Bard College at Simon's Rock:

http://simons-rock.edu/

Simon's Rock is unusualy in that the entire entering class has left high school early. You're treated like an adult there, allowed to make your own decisions and mistakes. If you're chomping at the bit to get on with your life, Simon's Rock is a great way to do it.

It's a mostly liberal arts school, but the technical classes were phenomenal. I was able to transfer to Carnegie Mellon for my junior year, no problem--all credits transferred, and I was just as well prepared as the other Physics juniors.

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