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alokv28

59 karma · joined February 28, 2012

[ my public key: https://keybase.io/alok; my proof: https://keybase.io/alok/sigs/mx5S4kwySphbIGOuVuc5WC_nxFjD27cwzlbwdtMfjiI ]
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alokv28··on 1nm Breakthrough: TSMC, MIT and NTU Published on Nature
Labels for production nodes (e.g. "1nm") have diverged from specific physical distances (e.g. gate width) for years now.
alokv28··on A Framework for First Principles Thinking
ironic title is ironic
alokv28··on Another Step Toward the End of Moore’s Law
The node label (e.g. "5 nm") no longer represents a physical dimension and hasn't for some time -- it's simply a continuation of a naming convention. In fact, while we used to scale down transistors by simply reducing the gate width (where the naming convention originated) we now take far more elaborate steps to do so.
alokv28··on Launch HN: JetLenses (YC S18) – Lowest Prices on Contact Lenses
Congrats on the launch! Can you say more about how you drive your costs down?
alokv28··on SCiO: A Pocket Molecular Sensor
They never claimed to be doing Raman spectroscopy.
alokv28··on PyCon US 2014 – Videos
It's up now: https://www.youtube.com/watch?v=a5Hlc1suTss
alokv28··on E-Go: A sub-$1000 electric longboard
Yup, such a blatant copycat attempt. All the way down to the angle the photos are taken from. Good thing for Boosted that you can't just copy a well engineered drivetrain.
alokv28··on Mathematical Equations That Changed the World
That relation ties together entropy, a previously macroscopic quantity, and discrete, countable energy states, first introduced via quantum mechanics.
alokv28··on Mathematical Equations That Changed the World
I'd replace it with S = k log(Omega), which links thermodynamics to quantum mechanics.
alokv28··on Keybase.io
Same boat here! Any sense of how long the queue is?
alokv28··on What Gives Gold that Mellow Glow? (2006)
The color change of gold and CdSe particles with size are due to two different effects.

CdSe is a semiconductor, and reducing the CdSe nanoparticle size increases its band gap through a process called quantum confinement. For smaller particles, it requires a photon to have higher energy (i.e. smaller wavelength) to be absorbed.

Gold particles derive their color from the scattering mechanism mentioned in the parent comment.

alokv28··on Qubit survives record 39 minutes at room temperature
Not that I disagree with what you wrote, I just want to point out that silicon dioxide is probably the most important reason silicon has reached such ubiquity in electronics. No other material has a native oxide as good as SiO2, even though the semiconductors themselves have superior properties than silicon.
alokv28··on Dataset: Databases for lazy people
I know very little about what's available in Ruby, but I would have used the Pandas library to accomplish this task in python. Their in-memory data structure, a DataFrame, is more than capable of handling those operations.
alokv28··on Dataset: Databases for lazy people
I'm trying to figure out where something like this fits into the python data ecosystem.

For datasets that fit in memory, Pandas seems like the best bet. Good I/O functions (JSON, CSV), easy slicing (numpy array-like syntax), and some sql-like operations (groupby, join).

For large datasets, you'd need a proper db.

So is Dataset then useful for datasets that cannot fit in memory but aren't too large?

alokv28··on Apple, The Hyperion Ion Cannon And Why Future iPhones Could Have Sapphire Screen
That was hard to read...

"The manufacturing process for most solar panels involves manufacturing a block of sapphire or other crystalline silicon and then slicing a .2mm-thick sheet off of it with a wafering saw."

Painful

alokv28··on The Stanford Startup and the MIT Startup
Just want to point out that Stanford does have its fair share of "MIT startups".

Here's a small subset:

* Alveo Energy

* Amprius

* Blue River Technology

* C3Nano

* Momentum Machines

* QuantumScape

* Solum

Although if the OP's simple model had a category for startups simultaneously validating customer demand and driving technological advantages, most of these companies would be there.

alokv28··on Ask HN: Where else do you find your news?
StraightUp http://readstraightup.com

Circa app

Twitter

alokv28··on April 5, 2007: "Show HN, Dropbox"
Internet archive link to the demo/screencast: https://web.archive.org/web/20070407145348/http://www.getdro...
alokv28··on Reveal.js
I still prefer Keynote to JS presentation tools since playing with layout is easier manually than with css (for me).

But one killer feature Keynote lacks is slide inheritance. I love using build-outs and I wish I could edit a parent slide and have the changes propagate to its children. This feature would be much easier to build out with a JS presentation framework.

alokv28··on 20% of Yelp reviews are fake
I've found that Foursquare has a higher signal-to-noise than Yelp for restaurant reviews/tips.
alokv28··on Ask HN: How does one get into energy entrepreneurship (e.g. solar)?
Most energy entrepreneurs I know started out leveraging government programs including SBIR/STTR, ARPA-E and DOE grants, and national lab facilities.
alokv28··on Show HN: An app for developing great habits
Thanks for answering!
alokv28··on Show HN: An app for developing great habits
Can I export/download my data?
alokv28··on Apple iPhone 5S
Any more info available on the "M7 Motion Coprocessor" chip? That's the most interesting addition IMO.
alokv28··on Start Using Emacs – A Thorough Guide for Beginners
On OSX I have Meta bound to the Apple key.

What also helped is a tip borrowed from Steve Yegge [1] to bind C-x C-m to M-x (also C-c C-m, in case you miss the x). This avoids my most common use of Meta, allowing me to use the more comfortable Control (bound to Caps Lock).

[1] https://sites.google.com/site/steveyegge2/effective-emacs

alokv28··on Harvesting solar power in space and sending it back to Earth
I'm confused. Is there an announcement or update of some sort associated with this project? It's unclear from the article.
alokv28··on Bill Gates still helping known patent trolls obtain more patents
Not everything Intellectual Ventures does relates to patent trolling.

Intellectual Ventures also has an applied science laboratory that's even spun out a startup, Kymeta [1], in which Bill Gates invested.

Kymeta is a very cool company; they're developing revolutionary satellite transceivers using metamaterials [2].

[1] http://www.kymetacorp.com/ [2] http://en.wikipedia.org/wiki/Metamaterials

alokv28··on Metaprogramming – Julia Language
Nice to see!

I choose Mathematica over python for a lot of scientific/numerical computing due to how "lisp-y" Mathematica is.

I'll be keeping a keen eye on Julia as well!

alokv28··on Raising a VC fund in 100 days
Thanks for the response, Hunter! Looking forward to seeing where y'all invest.
alokv28··on Raising a VC fund in 100 days
Nice read, thanks for reflecting on the process!

Did you try anything creative with the fund terms or was it pretty standard VC fund structuring? I've heard that there's often LP pushback against changing standard terms, even if the changed terms might better align LP and VC incentives. I'm also curious if LPs view investment in a micro-fund the same as they would a larger, traditional VC fund.

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