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Should have peeped the camera before you went into my car.

Once the boots on your ball joints tear, the wear to the ball joints will accelerate leading to costly suspension repairs. Tie rods can be inspected by twisting them with your hand, they should be fairly stiff with no looseness or slop. If the boots are torn but the ball joint is still nice and stiff, you should definitely replace the boot and regrease the joint. It's much easier and cheaper than having to replace the entire ball joint.

If you want to do this yourself, it's not particularly difficult, albeit a dirty job.

You'll need a ball joint separator tool

https://static.summitracing.com/global/images/prod/large/otc-6297_w.jpg

This works better than a pickle fork, or using a hammer and a pry bar to break the taper between the ball joint and the upright.

You'll also need a small screw driver, or a set of needle nose pliers to remove the cotter pin holding the ball joint castle nut. Some OEMs no longer use the castle nut and cotter pin, but instead use nylock nuts to secure the ball joint, just something to consider.

Ball joints have 2 ways of seating, some use a spring clip that you have to work on over the ball joint, until the clip seats in a groove. I've found that spreading the spring clip makes it easier to install if you don't have a dedicated tool.

The other way of seating is an internal clip, and to seat this type of boot, requires using a deep socket, or PVC pipe, or some other socket that can fit over the boot and clear the ball joint. Then you use books, or a piece of wood, or some make shift anvil, and with a hammer, drive the lip into place.

If your ball joints are too far gone, then you will have to replace the ball joint, this is more labor intensive and expensive. Some instances require you to purchase an entire new knuckle/upright/spindle. More commonly replacement ball joints that are built into the knuckle/upright/spindle will have a retaining snap ring to keep them from backing out. Most ball joints are made of hardened steel, and tend to be stronger than the spindle, meaning the bore in the spindle tends to distort every time you press in a new ball joint.

Adding to the pain of replacing ball joints is the fact that your alignment will likely be thrown off, since tie rods, and ball joints can and will affect your alignment.

It's much easier to be pro-active and inspect the boots from time to time to make sure they're not leaking grease or dry rotting. Staying on top of this will keep your suspension in good condition for years to come.

When air flows through a venturi it speeds up, why does it do that? In simplest terms, pressure energy is converted to kinetic energy. In more accurate terms, there is a lot going on, and pressure itself while being the prime mover, is only part of the equation. Part of the reason a venturi even works, is because there is imperfect pressure recovery, due to entropic losses, thus the outlet is always at slightly lower pressure than the inlet. High pressure always flows to low, thus the venturi outlet acts as a favorable pressure gradient for air to follow.

If the pressure in the outlet is lower than the pressure at the inlet, the flow will follow the path of least resistance and naturally seek the outlet.

When you use a shop air hose, the pressure in the hose is much higher than atmospheric, the pressurized air expands into ambient. Now, if you lower the pressure of the ambient air at the discharge point, the air that comes out of the air hose rushes out with even more force, because there is less ambient air pressure acting as a restriction.

This is the principle behind air amplifiers.

https://www.youtube.com/watch?v=6HeagI8Tkh0

Therefore, the effectiveness of a venturi lies not just on the inlet pressure, but the outlet pressure as well.

The taoist principle of yin/yang separation generates power is highlighted here, the higher the separation of high and low pressure, the faster the air moves.

And to add weirdness, if you separate a positive and a negative electrical charge with a non-conductive material, at a certain current and voltage you begin ionizing the air around the charge separation. The so called dielectric barrier discharge, which can be used to influence airflow.

https://www.youtube.com/watch?v=HU0WPt9rKaI

If you lock your lower body, and turn your palm from up to down, or down to up(so that your thumb rotates 360 degrees), you see your elbow moves in a swinging motion. Now if you turn your palm, and restrict the movement of your elbow, you see that your entire body needs to rotate in order for the elbow to remain stationary. This is the secret of taiji, the isolation of either the elbow, waist, or knee in order to force a full body rotation. This is how you generate maximum power and leverage with your body.

How likely are they fucked in the head?

Is to isolate the motion of the *front knee. There is no one way to do this, but it is very difficult to do.

https://www.youtube.com/shorts/DK9bIkQg4yc

Here you can see a perfect demonstration of the principle in action.

The knee can go up and down, but it cannot wobble side to side, or twist, it must work like a hydraulic jack, only moving up and down.

By loading the front knee with the weight of your torso, you keep the knee from buckling. This allows you to turn the upper torso independently of the lower.

This is in accord with Taoist principles, in order to generate power, there must be a yin yang separation. In this case, the legs are solid, the torso is pliant. That separation delivers great power and knocks the fuck out of the nigger.

Doesn't exist, it's trying to simplify and approximate the truth. Flow is 5 dimensional, we assume 2 orthogonal axis of spin, and we call the other stuff secondary flow. Flow is locally structured in 3 dimensions, and translated in another 2. Locally structured in x, y, and z planes, and the other 2 dimensions are borrowed from electromagnetism, divergence and curl. Divergence is basically pressure gradient, and curl is basically vorticity.

Aerodynamicists create formulas and approximations to encapsulate all 5 dimensions of airflow. Prandtl's lifting line theory, Martin Kutta's theories regarding circulation, and the subsequent Kutta-Jukowski theorem. Which is really just a description of flow around a cylinder, with an applied Fourier transformation. As we all know Fourier transformations are 2-d projections of more complex phenomena.

The problem is we are pea-brained, it's difficult for us to see the nested donuts in airflow, and the 5 dimensions they encompass. It's bad enough we can't see the wind, but worse our tools for analyzing it are dependent on butchered approximations.

A while ago I saw a new propeller design, and then it hit me like a ton of bricks.

https://www.youtube.com/watch?v=MNnB_50Z20I

This thing is just ribbons of a torus.

https://i.ytimg.com/vi/px5kZn_hPbU/maxresdefault.jpg

The vortex ring is a torus, a non-destructive interference pattern. The vortex ring encapsulates all 5 dimensions of flow. X,Y,Z planes of symmetry, divergence and curl, all in one.

None of them are natural, they're almost all juicing, at least some of them are honest about it. Don't go down that path, plan for the long term, you should exercise so that you can live a long healthy life, not to get jacked AF while you shrivel your nuts.