Sunday, November 22, 2015

Make it Stick - Peter Brown


  • Useful learning is EFFORT-FULL. It's difficult, but worth it.
  • We are BAD JUDGES of when we're learning well and not.
  • REREADING TEXT and BATCHED PRACTICE are not supported by research.
  • RETRIEVAL PRACTICE is what you need - a simple quiz will do wonders for you.
  • SPACE OUT PRACTICE with breaks to learn well.
  • TRY TO SOLVE PROBLEMS BEFORE BEING TAUGHT THE SOLUTION. Good for you.
  • Build your learning on a FOUNDATION OF PRIOR KNOWLEDGE.
  • ELABORATE on what you just learned by expressing in your own words. If you've encountered the Udacity Git course with Caroline Buckey and Sarah Spikes, you've been told to write down reflections because it's good for you!
Study smarter : https://www.youtube.com/embed/IlU-zDU6aQ0 (Marty Lobdell)

Saturday, November 14, 2015

WT* is FB Up To?

Facebook is seeking an Electronics Engineer to join our Infrastructure Team. We believe connecting the world is one of the greatest challenges of our generation, and that everyone deserves access to the knowledge, tools and opportunities that come from being connected. That’s why we, along with other tech companies, launched Internet.org, a global partnership to make the Internet available to the two thirds of the world’s population that doesn’t have it. The Connectivity Lab team has been working on developing new platforms for connectivity on the ground, in the air and in orbit. For all of these systems, the team is looking at Free-space optical communication, a way of using light to transmit data through space using invisible, infrared laser beams. To make this a reality, we need to scale our infrastructure and ensure that it operates efficiently so that we can deliver innovate services. Join us as we build the technical foundation upon which the world shares and connects. This position is located in our Woodland Hills office (near Los Angeles).

Responsibilities

  • Hardware design for Free-Space Optical (FSO) and Radio Frequency (RF) communication terminals
  • Interface with software, mechanical, power, thermal, and hardware engineers to understand system architecture
  • Perform component and system level testing in both laboratory and operational environments



Requirements


  • B.S. or M.S. in Electrical Engineering or related technical discipline
  • Experience in analog and digital circuit design, schematic capture, and PCB layout
  • Knowledge of transmission line theory, high-speed circuit design, RF, electrical concepts, and analysis tools
  • Experience with hardware in the loop testing and validation, including the use of network test equipment such as spectrum analyzers, oscilloscopes, and frequency synthesizers
  • Experience with both RF and optical testbed lab operation and procedures desired
  • Experience in RTL design and implementation on an FPGA, including synthesis and simulation tools desired
  • Knowledge of Cadence Allegro, Mentor Graphics PADs, Altium Designer, Verilog, System Verilog, C, C++, *nix

Tuesday, November 10, 2015

Thank You WSJ ... Nehal Chopra

Get em while they're down. Ladies, wouldn't you like to see a big, sleazy company that is responsible for more pollution than all the passenger cars in the world combined (watch Rose George on TED) go out of business?

Not going to happen. So, given that they'll stick around forever, and thrive, why not buy their stock now and make a buck or two?

For a change, it's the male analyst who takes down the overpaid female fund manager. Congratulations Andrew Left. Sorry Nehal - I'm sure there are jobs in India though. You can try the H1 thing again next year.

Sunday, November 08, 2015

The 1% - Thanks to Prof. Rubik

An easy one - but not sure if it'll lead to any broad transfer (that is, will this facility lead to better performance in other areas?). It did work out my mnemonic creation ability though.. Next, need to get into speed cubing. I'm a laugh - I can do the thing walking to the grocery store, but I'm taking 10 minutes :)

here are the mnemonics

ridird for putting which corner pieces correctly
(Duolinguist has a good one - Ride the Dirty Red Dragon)

Then, for a top to right re-positioning of a middle layer edge piece, it's

ur i(ur) i(uf) uf -- probably better remembered as UR i(UR UF) UF -- so you basically only need UR, UF at the tip of your tongue.

For a top to left re-positioning of a middle layer edge piece, it's

Wiley Uluf used WiFi (UiLi UL UF UiFi)

Then, if you have just one yellow center piece or the rev-L, then it's

The FURry doc said URF : FUR i(URF)

If it's a horizontally oriented straight yellow line, it's

Beat a straight path to the FRUit tree to find the it's rough :

FRU i(RUF)

Now you have your cross.

If you have no corner pieces correct, you orient one of the side yellows at 8 o'clock

If you have one correct, in addition to the cross, put that (top edge of course) at
7 o'clock. Note that 7 o'clock top-edge is different from 7 o'clock vertical faces..
Vertical faces go from 12 o'clock to 11 o'clock. The top edges are 12, 1, 3, 4, 6, 7, 9, 10

If you have 2 corners correct, then you need to orient one vertical yellow facing you
at 7 o'clock

Do : Are you Rui's sister? are you Uri? RU RiU RU URi
(Riu is Rui's sister - I actually know somoene called Rui)

Do this till you get the top face completely jaundiced.

Then, see how many corner pieces are correct. If it's none, do the below move once.
If it's one, same gun. If it's 2, then if it's
AB
CD

for the corner pieces, you need to position so that AB are correct, or AD are correct.
Then do the move :

Rif and Ribb Arfie, Ribb Ararui (yes, I know. If you have a better one, do share)

This is : RiF RiBB RFi RiBB RRUi

You may have to do this more than once. Once done, you'll only have the center pieces to
work on. For that, you have to see whether you want them to move clock wise or counter.

For clockwise :

Inside FF and F (Father Franklin is Famous)

Uluf split himself watching a rif of FLIR. (Uluf becomes UL something UF)
Something is RiF FLiR

So : FF UL RiF FLiR UF F

May have to do it more than once.

For counter clockwise, you just invert the U's in Uluf --> UiLUiF