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First you have to give up, first you have to *know*... not fear... *know*... that someday you're gonna die.

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Date: 2013-03-05

Title: dns.canhasinter.net VPN over DNS tunnel for Bitcoin

Content
Hey everyone!

A new website has appeared! Well, really more than that. It's an automated
system for taking your money. In exchange, it offers a way to work around basic
security on certain open-but-not-quite wireless networks.

Written in C and Bash. Some crazy code in there, but whole thing is only 398
lines at the moment. Interface is over SSH. Involves my PermitTTY patch which I
need to work more on.

Let me know if you have any issues with it at all.

Link: dns.canhasinter.net

Thanks,
Teran

Tags: my_websites computers bitcoin internet dns_tunnel index

Permalink
Date: 2013-02-15

Title: alotofkeywords.com - Alternative currency keyword search

Content
Hey everyone!

I launched a new website today! It's pretty much just unique keywords
identifying accepted currencies and what not, inserted into page content or meta
tags.

I described this on the Bitcoin Talk forums, if you're curious

And the website: alotofkeywords.com

Alot monster is from Allie Brosh of Hyperbole and a Half.

Thanks for reading, and check out the site!

--Teran

Tags: internet my_websites bitcoin computers index

Permalink
Date: 2013-02-06

Title: A hundred ways that you can die tomorrow

Content
I think that there are three things worth doing in life:
A) Things that change the world.
B) Things that change yourself.
C) Things that make the above possible.

Now, here's a list of a hundred ways that you can possibly die tomorrow:

001. Hit by a train.
002. Heart attack.
003. Stress.
004. Lethal spider bite.
005. Blunt trauma.
006. Stabbed.
007. Fire.
008. Falling.
009. Going crazy around a hitchiker with a hatchet.
010. Ran over by a car.
011. Fall off your motorcycle, off a bridge.
012. Shooting accident at the gun range.
013. Federal government labels you as a domestic terrorist and you are killed by the military.
014. Nuclear bomb goes off near you.
015. Angry spouse kills you with a coffee pot.
016. Coconut falls on your head.
017. Attacked by a shark.
018. Plane crash.
019. Drug bust to the wrong house, shot on sight when you try to defend yourself.
020. Tire bursts in your car in front of a semi or lifted truck. Ran over on the interstate.
021. STD.
022. Tall shelf of books in a library falls on you.
023. Fall off a ladder.
024. Boss gets angry at you and kills you.
025. Fire from cooking.
026. Carbon monoxide poisoning.
026. Gas stove left on without a flame, then a sudden spark.
027. Being held at gun point and accidentally shot due to poor trigger control.
028. Losing the will to live.
029. You've been feeling terribly sick for a few days and found out you were poisoned with Ricin.
030. Anaphylaxic shock after eating lunch.
031. You contract a rare, highly-contagious disease and are killed off to prevent further infection.
032. You're cutting a log and miss the log, axe hits your leg and you bleed to death.
033. Bear attack.
034. Stressful day at work leading to alcohol poisoning that night.
035. Your work place is bombed while you are listening to your obnoxious boss.
036. You find an old bottle of liquor and don't realize it was poisoned back in the prohibition period.
037. Your Craigslist date turns out to be a serial killer.
038. You are shoved off your balcony.
039. French teacher is disgusted that you cannot roll your R's. Stabs you with a pencil up the nose.
040. America takes further downward steps towards socialism and you try to live like a free person.
041. Motorcycle tire bursts in a corner with traffic coming towards you in the other lane.
042. Some guy is tired from a boring job and drives into your lane without seeing you.
043. GPS-guided missile has a tiny software bug that causes it to go off course and hit you, instead.
044. As you're reading this, your coworker snaps and begins beating people with his laptop.
045. You're in an ambulance, already quite injured, and the ambulance is in a crash of its own.
046. Confused after finding out that your "parents" aren't your real parents, you don't look where you're going when crossing the street.
047. You work at a nuclear power plant and it has a melt down with you near the core.
048. You're an astronaut in a space ship and someone confused milimeters with inch-fractions on a single measurement.
049. You anger the wrong person and he turns out to be a mafia member.
050. You help an old lady across the road and she drags you into a car.
051. You've been drinking a lot and didn't know that your weed was laced with enough LSD to kill you, combining it with the alcohol.
052. Reloading a bunch of ammo, you're getting tired and accidentally set the primer off on one of your fresh rounds.
053. You refuse to sign a traffic ticket and a cop isn't feel particularily nice, and tasers you. You have a pacemaker.
054. One of a few million lines of code isn't spot on, and a drone strike happens on your house, instead of in a field.
055. A draft is called and you are killed in training through over exertion and heat stroke.
056. You're counseling someone with multiple personalities, and his serial killer side comes out.
057. Your neighbor does the wrong kind of bath salts and starts eating your face.
058. Tornado comes through your neighborhood and slams a car into you.
059. Drowning.
060. You're a tractor mechanic and someone activates a hydraulic piston that you're working on.
061. Chain snaps at speed on your motorcycle, cuts through your leg and you fall off.
062. You drive a front engined, rear wheel drive car and the flywheel breaks off, flys through the transmission bell housing, cuts off your leg, and you bleed to death after crashing.
063. You're filling up at the gas station and someone smokes a little too much next to his gas cans.
064. Playing Nintendo Wii without a strap, controller flys into the screen. Owner is angry and bashes your skull in with his fists.
065. Doctor cuts the wrong thing in surgey.
066. Airplane crashes into your house.
067. The cottage cheese and canned fruit you had for breakfast was poisoned at the factory. You missed the recall notice.
068. You're listening to your music with headphones. Robbers break into your house and shoot you before you know it.
069. Spiteful girlfriend thinks you cheated on her, and cuts off your testicles. You lose the will to live.
070. Hearing is impaired after a concert, don't notice the car when walking across the road.
071. Someone in chemistry class makes a bomb and ignites it without knowing what he's doing.
072. You work as a trash delivery man and get crushed by the bed dumping at the wrong timing.
073. Your friend left a ratchet on the engine's shaft. He starts it, it springs out and smashes through your face.
074. You started work as a farmer, not knowing the ground had one more mine left in it.
075. Attacked by a honey badger.
076. Picking up the phone to your boss letting you know about a pay raise, you don't notice the car swerving into you on the sidewalk.
077. You say something politically incorrect and mildly racist. You're killed the next day.
078. Cleaning your gun and looking down the barrel, but forgot to check the breech.
079. Driving behind a logging truck with the logs not secured quite right. Semi brakes hard and one falls out through your windshield.
080. Making a hard corner around a cliff and didn't know about the recent oil spill.
081. Driving fast to impress your date, and don't notice black ice. She's killed, but you're fine. Her father kills you in a rage.
082. Lose balance while hiking up a cliff and fall off.
083. Entered a diving competition and bent your neck the wrong way at a 100 foot jump.
084. Kid is crossing the road with traffic. You run out to try and save him, push him out of the way, and then get ran over yourself.
085. Friends pull a joke on you by robbing you at gun point. Don't realize the gun is loaded.
086. Hunting a wild boar and run out of ammo after a misplaced shot.
087. Cabin loses pressure at 20,000 feet. You suffocate and freeze to death.
088. Someone at Lowes isn't looking where they're going and skewers you with the forklift.
089. Confess to a crime you didn't commit and are sentenced to death.
090. Too much peanut in your almond butter. Forgot your epinephrine pen.
091. Walking around in your yard and disturb a massive colony of Africanized bees.
092. African safari gone wrong and you're eaten by a lion.
093. You're a woman on her period, swimming in the ocean. Eaten by a shark.
094. Mountain biking down the side of a cliff. Your tubed tires are not inflated much and come off the rim.
095. Skydiving doesn't quite work out.
096. You're in a submarine and the nuclear reactor melts down.
097. Accept a FedEx package, to find a couple hours later it was a bomb from an angry employee.
098. Accidentally shield Ted Nugent from an angry fan's gun shot.
099. Become the president and attempt to take down the Fed.
100. Preparing a body for the grave, you glue his eyes shut. A few minutes later, you're shot in the back. Body is taken. It was Michael Jackson's body.

So are you really spending today how you should be if you'll die tomorrow?

Tags: philosophy death index

Permalink
Date: 2012-12-24

Title: Motorcycling physics and thoughts

Content
Merry Christmas everyone! Hope you're having a good New Years. Although I have
no idea when you're reading this. So Happy St. Patrick's day, Valentine's day,
and the works while I'm at it. And then it just gets pointless.

So... anyways. This post is on motorcycles. About fast motorcycles. About nimble
motorcycles. Ones that you can drift. Bikes lightweight enough to push up a
hill. Bikes with a low enough first gear to climb, and a tall enough top gear to
get on the highway.

I don't believe in motorcycles in the traditional sense. I don't understand all
of that nonsense about needing shocks and swingarms to corner. And I don't
believe in the electric starter.

Not to say, there is never a case for the things above. But, if you want a
fire-breathing machine full of excitement and purpose-built for performance,
those don't always come into play.

So to turn a bike at speed, you lean it. This means, to my limited
understanding, changing the tread contact patch at the tire. It swoops a
different way and encourages a non-straight direction. Cornering is generally
measured in G-forces, or newtons. Most-strictly, on a theoretical model it has
to work with the traction coefficient between the road surface and tire. In
practice, there's a lot more to it than that.

Pneumatic (air-filled) tires have a suspension-like effect on their own. They
conform to the surface. Sometimes too much.. and sometimes too little, depending
on load, stiffness, and air pressure.

But let's look at a race track. Beautiful, smooth asphalt and swooping curves.
No bumps. No rocks. Just sticky, black goodness.

And what races on this surface? Complicated machines with a high seat position
and pretty involved suspension underneath. But why? I can understand on the
street to some extent, with potholes and all. Or exceeding high speeds on the
freeway. But a track is so smooth.. and perfect. And leaned over, suspension
plays less and less. Twisting flex in the chassis probably matters more than
those tires popping up and down in a vertical fashion, when you're leaned over
at pi/4. And even, I guess a side-to-side flex can come into play on the axle
areas.

In general, it is my belief that suspension, in the modern sense (two shocks in
the front, swingarm in the rear with a single shock or dual), only performs
handling performance in the vertical direction. Which generally, is going
straight over bumps. And there is a huge use for suspension with going over
bumps. On a bicycle, usually not. You're probably doing something crazy on a
bike by the time you've maxed out what a rigid steel frame can do. But on a
motorcycle, the speeds and weight are much higher. A rigid frame will go over
quite a lot, but in general, even maximizing tire selecting and setup, struts
become necessary on a variety of surfaces if the goal is survival and
sustainability.

That isn't to say that you can't go off jumps and curves with a solid
suspension. And on loose surfaces, all that energy that the suspension attains
on compression is pushed out on rebound. That increases the load on the loose
surface (loose, meaning softer than the tire) and pushes back, giving more
potential to lose matter to grip on to. And building a bike without suspension
is much simpler. Not drastically, but quite a bit.

Alright. So I'm leaned over at pi/4 in a wide bend, going 40m/s on this smooth
asphault. There's a few things I'm concerned about. Rotational flex in the
chassis, for one. I've heard that Ducattis are built to allow some rotational
flex to have different angles on the front and rear tires. This slight flex is
supposed to help improve the predictability of the bike. Predictability is good,
especially when your life is on the line. I'm also concerned about the rubber.
And of course, it's treadless rubber. In the rain, I might want grooves, still
unsure on that. So it's treadless, sticky rubber. The kind you can run your
thumb over and feel the adhesion/drag. I want the rake angle to be set properly,
as well. A short rake angle is twitchy. Easier to steer at low speeds, but
usually not a problem on a bike. A longer rake (and not like a ridiculous,
stretched chopper!) generally offers more stability and better contact patch
angles in the corners.

This surface does have minor, minor bumps. So I probably want some chassis flex.
I'm not sure if aluminium will work for that. Even though it's much lighter, it
doesn't flex as nicely as steel does. So my frame is probably steel. And of
course, because I'm crazy and don't accept every modern notion given to me,
there's no shocks or swingarm. This also, conveniently allows for a nice and
tight chain since it doesn't have to be loose enough to allow for extension
through swing-arm shock compression.

What it all comes down to, now, is traction of the tire versus the road, and the
forces which suboptimally are not applied as downward as possible on the road.
Sorry for my poor terminology, but I mean that the mass of the bike and rider
should be as aptly directed to the contact as possible. Inertial force is
largely responsible for this, but that has its limits. Of course, more so at
sharper turns at slower speeds. These forces you don't want usually come from
mass above the tire, which is just about all of it. Imagine a motorcycle with
lifted a meter in this corner, and it seems silly and like it's going to
low-side. We have this silliness with modern track bikes, putting the rider and
weight up so high. Anyone can tell with the center-of-gravity weight just
sitting on a bike. All of that comes into play. Now, in my example it may not be
much of an issue, but in a field where technology is pushed to the limits, it
could potentially mean another m/s or more of speed around the corner. Enough to
win a race, given all other things equal. It also allows for a lighter bike,
which means better acceleration, harder braking, or less wear on components if
braked/accelerated like a heavier bike.

Also means no brake dive, nor rake angle changes through suspension compression
on the front and/or rear.

Given all of this, I believe that a steel framed, fully rigid motorcycle given
the right angles and thought, with the same engine, could beat any track
motorcycle within certain parameters on a smooth track.

I'm not saying that suspension doesn't have its place, and there isn't much
greater genius than my limited intelligence involved in suspension design and
setup at tracks. And I don't believe you can merely set your struts to be solid
and have an identical effect. But, if you built this frame from the ground up,
or possibly rigidified a frame with very bad suspension, it would be noticably
better.

But what about hardtails, and how everyone says they handle terribly? Well, in
my personal experience, it's because people build them in stupid ways. Hardtails
are usually stretched, raked, big Harleys with forward controls and high
handlebars. And they're ridden on the road, usually between bars. So on the
road, you want to be able to survive speed bumps and the like. And forward
controls is ridiculous for that. I'm completely okay with forward pegs for the
highway, but the controls should always be mid on a hardtail. With forward
controls, the shock of bumps will go straight up your spine with little way to
lift yourself up. With mid-pegs, you predict the bump, raise up a little, and
ride over it. It's not a big deal.

I know this isn't ideal, but I put rigid struts on my 1996 Honda Nighthawk 250.
Personal experience does show that it's a rougher ride, but not unbearable by
any means. In fact, I think with a good seat and the right bike, anyone can
handle a hardtail. The lower center of gravity and seat position makes it easier
to handle at low speeds, especially on slick or rough surfaces. Now, it does
jolt you around badly on the gravel, but it's predictable and you're probably
not going to be riding over gravel more than 5% of the time on a hardtail.

But, on the street, I think the front struts may be necessary. I've yet to test
without, so I'm not sure.

I'm just amazed at how everyone knocks hardtails. I've ridden one, and it's
fine. I'm not going to say it handles better in every single possible scenario
(namely, vertical repeated bumps), but it's more predictable, lighter, and fine
on a sub-300lb bike. And please, if you make your bike a hardtail, put mid
controls on it! And no ape hangers, seriously. I like my bikes to function, not
be show pieces for bar hopping.

So, back to the suspension. I think the suspension damping acts like oscilation.
It's a wave of up and down, in terms of forces and compression. Pneumatic tires
have their own wave, depending on the tire, wheel, and air pressure. With
suspension (or even possibly, flexing of the frame, though unlikely), it
generates its own wave. Many times, the waves can "fight" each other. I think
this would mean they are opposite, or partly opposite. One pushes up when the
other pushes down, etc. I think this is why swingarm bikes with monoshocks and
certain tires are so picky on tire pressure. They feel numb and untrustworthy
with even a small percentage of pressure difference. I don't notice this nearly
as much on my hardtail, but I like to run a lower tire pressure than I would
with the tire.

In general, you'll need X compression/rebound effect for a given course. In
theory, if you had a perfectly rigid tire, you -might- be able to have more
optimal dampening than the pneumatic properties of a tire will allow. So, I can
see certain cases where on that metric alone, a nearly massless suspension setup
could act better. But still, center of gravity is an obvious case in physics.
And track bikes are so high up that if the cog was lowered, could definitely
perform better on the track, within certain constraints.

Back to hardtails. Hardtails with a suspended front can pivot around the front
shocks, in part. So they act like they are suspened slightly as the rear is not
an entirely seprate mass. And I'm more concerned about hitting my mass head on
to something; less so towards the mid and trailing mass passing over it.

I'm sorry for the scatteredness of this post. I have no doubt my physics
understanding is significantly off. And I'm sure there are limits to what I have
proposed. However, no doubt, rigid suspension is sometimes the best in  given
constraints. Those contrains may just not be a reasonable track that exists
today. But perhaps, slow speed saloam? Most definitely.

And all on this note, I'm actually considering getting a Suzuki DR400SM. Which,
of course, is a fully suspended bike with a monoshock in the rear. I am starting
to learn, that even if my engineering theories are right, countless hours of
research and numerous positive reviews don't always go wrong. I'll probably end
up with a better bike in the DR400SM than I would hacking away at my own for
quite some time.

Yet, I haven't ridden the bike yet. So we'll see. I'm debating rigidifying my
two stroke if I can resurrect it. Hoping the rake angle won't be too negaively
effected with the shocks bottomed out, though.

I love removing parts and designing things. Every once in a while, I find use
cases where something was not needed. But often, like with motorcycle seats,
enough time without it makes me appreciate them so much more and have a greater
understanding of why it was there in the first place.

Sincerely,
Teran

PS: This is the coolest motorcycle blog of all time: Attack Choppers

PPS: Haven't re-read/edited this post at all, and it's really late. Sorry for
the confusion, typos, and weird mistakes! Poor logic or seeming of insanity
is probably unaffected by my lack of energy, however, and accurately assumed.

Tags: motorcycles physics index

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