Tuesday, January 29, 2013

hacking my feet

So one of my weak points that has been exposed in Krav Maga has been my foot position.  The basic problem is that my feet feel more natural when they're both 45 degrees off center:


A few more degrees, and I think I could call it my "Fred Flintstone" stance.  Not sure if this is because it's genetic, structural, or just out of habit.  Great for dead lifting, not so hot for driving forward.

In order to get max power for punches and keeping your weight centered so you can move around more easily, the feet need to look like this:


Seems like a minor detail, but it's an important one.  As I get tired, my right toe starts to drift back out which means I end up using the right leg to push off of more for punches.  The extra stress really became apparent one night when we start throwing knees and my right calf muscle was cramping pretty much the next day.

What I've been doing to try and fix it has been to try and walk around by pigeon toeing my right foot inward.  To me, it feels excessively turned inward, but that seems to be just a mind trick.  The end result is that my gait is a little noisier and my weight seems to be pushed more forward.  Also seem to be less agile with the feet parallel... as in changing direction or sidestepping stuff isn't as easy to do.

Just for kicks and grins, I tried keeping the feet parallel for the kick during the breaststroke, too: didn't notice much of a change in power, it's just "different".

It still feels weird, but it's becoming less so.  On the plus side, my calves are no longer killing me on the day after a heavy bag workout so I think this is having an effect.

Tuesday, September 18, 2012

diaspora: shattered armistice

I finally got around to checking out Diaspora: Shattered Armistice the other day.  It's a free game that basically gives you a good ole' X-Wing vs. TIE Fighter style flight simulator set in the Battlestar Galactica universe.  Download is about 1.3GB, and it support Win/Mac/Lin.

The good stuff:  It's got both single player and multiplayer modes.  They obviously put a lot of thought into the game and there's a pretty good amount of detail.  Combat is hectic and "realistically fake" like the old X-Wing games were (ie, you let off the throttle and you stop moving, despite the fact there's no friction in space).

The bad stuff: It's hellah complicated.  There are a lot of different buttons to push, not all of them make sense, and not all of them have anything close to an easy to remember mnemonic.  I'd also argue that it suffers from ARMA II's problem of having too many buttons to press and some of them could probably be merged into one key.  The craft are *very* responsive, which is cool, but in order to get all 6 degrees of control you need both the mouse and the keypad which makes flying kind of awkward.  It almost feels like you're trying to fly emacs.

As for the production values, they aren't bad for a free game.  The scripts for the voice overs are actually pretty cleverly done to avoid that awkward "Anonymous rookie pilot, stop those planes!" situation.

If you're looking for a complex combat flight sim that has a few rough edges, this might be right up your alley.  If you're looking for a quick, cheap yank'n'bank shooter thrill to blow off some steam, this probably isn't for you.

Saturday, July 14, 2012

ajax with jquery in rails

So I'm going back through the updated rails books in an effort to see what all has changed since I last poked at it (as it turns, quite a lot).  One of the big changes was the removal of RJS (rails javascript) and the move to jQuery.  Unfortunately, the new jQuery interface doesn't seem to be referenced in the doco I've got nor was it easy to get a straight answer from googling, checking the js console, or even good old alert() debugging.

Friday, July 6, 2012

2m sleeved dipole

A'ight.  I ran across some articles about off-center fed, sleeved dipoles for 2m and 70cm use.  They're cheap and fairly simple to make, which is right up my alley.  I was going to mess around with using some copper tubing, but this sucker is working well enough I don't think I'm going to bother with the copper (or I'll save it for another project).  Total price for this thing for me was around $12.

The original articles I referenced were KV5R's OCF Sleeve Dipole and W7LPN's 2M/440 Dual Band Sleeved Dipole Mod.  I ended up keeping the idea of the RF choke close to the bottom element, but went back to simply using aluminum tape on the outside of a PVC pipe.  Instructions after the jump, but here's a pic of the antenna in action:

Thursday, June 7, 2012

that's a lotta knobs

There's a reason it takes you years of study and practice to become a black belt: as much as you need to learn the skills of various punches and kicks, you also need to gain the experience of when to use them and the wisdom of choosing the right move for the right situation.  Although going around and using the Crying Dragon Death Touch as the opening move in every fight you get into is a valid strategy, it turns out that you will run out of sparring partners pretty quickly.  Yes you can learn the moves pretty quickly and achieve proficiency with them in short order, but without experience to guide your actions you are still just another n00b stumbling around and making messes.

And that's kind of how it was with my quick entry into the world of ham radio.


Friday, May 25, 2012

mobile nerdness

I put up a post on g+ about getting some ham radio antennae on muh car and thought I would post some pictures in case anyone was interested.

The basic idea was to make something I could easily deploy and take down, so there wasn't a whole lot of hole drilling and a lot of stuff is in temporary locations.  Pictures and a talk-through after the jump.

Which should be coming up right about........ now.