Momentum Extension Quotes

This so-called culture war, I suspect, is the product of a history in which white America took two different paths to civilization. The North is an extension of Europe and continued the court- and commerce-driven Civilizing Process that had been gathering momentum since the Middle Ages. The South and West preserved the culture of honor that sprang up in the anarchic parts of the growing country, balanced by their own civilizing forces of churches, families, and temperance.

This so-called culture war, I suspect, is the product of a history in which white America took two different paths to civilization. The North is an extension of Europe and continued the court- and commerce-driven Civilizing Process that had been gathering momentum since the Middle Ages. The South and West preserved the culture of honor that sprang up in the anarchic parts of the growing country, balanced by their own civilizing forces of churches, families, and temperance. DECIVILIZATION

Many of the important principles in twentieth century physics are expressed as limitations on what we can know. Einstein's principle of relativity (which was an extension of a principle of Galileo's) says that we cannot do any experiment that would distinguish being at rest from moving at a constant velocity. Heisenberg's uncertainty principle tells us that we cannot know both the position and momentum of a particle to arbitrary accuracy. This new limitation tells us there is an absolute bound to the information available to us about what is contained on the other side of a horizon. It is known as Bekenstein's bound, as it was discussed in papers Jacob Bekenstein wrote in the 1970s shortly after he discovered the entropy of black holes.

And while you must create robust new extensions to your flywheel (and given enough time, you might even create entirely new flywheels) be sure to keep building momentum with your winning strategies. Never forget, the Next Big Thing is very likely the Big Thing you already have. Make the most of your victories. Keep turning the flywheel.

These qualities make a great impression on your boss, your teams, and your customers. You will be more respected, noticed, and appreciated in the process. As your own "CEO of Self," projecting this positive level of engagement furthers your own personal reputation and interests for healthy communication, networking, and positive first impressions. An added bonus is that YOU will receive great benefits from putting forth this type of effort. Whether it be self-esteem, new training, cooperation, experience, or a raise or bonus, the rewards are extensive and many.

The physics of diffuse axonal injury Given our understanding of the rotational nature of diffuse axonal injury, it is now possible for us to take what we learned about levers and rotational motion in the previous chapters and apply that knowledge here to help us understand how a punch to the chin ends up stretching and damaging axons in the brainstem and throughout the brain. The first step in this process is the punch. This punch must meet a minimum energy requirement because we will be causing structural damage to axons in the brain. This punch must also meet a minimum momentum requirement because we need to spin the whole head around to damage those axons. Considering what we know about knockout punches and how boxers train, it is relatively safe to say that meeting the minimum energy requirement is not difficult, but meeting the minimum momentum requirement is. Fast punches are important strategically, but increasing the effective mass behind your punches is what gives your punch the ability to lay your opponent out on the mat. Figure 5-2. The process of diffuse axonal injury from punch to axon stretching. Left: The punch hits your opponent. Center: The punch rotates your opponent’s head around an axis located in the neck. Right: Axons located a small distance from the axis of rotation become stretched as one end of the axon travels around the axis of rotation. This story takes us from the fist to the axon, but there is still something missing. We turn our heads left and right every day, sometimes very rapidly, so what makes a punch so special? The science is still too young to be sure, but I will speculate that the peak of the force curve (figure 5-3) is typically where the axon gets rapidly extended to its natural limit, but the tail of the force curve is where the axons are damaged. The primary reason for this speculation is the empirical knowledge that pushing off the back foot is essential for a good knockout punch. Boxers and martial artists from all styles stress the importance of this push to the success of a punch. Some strikes, such as a front-hand palm strike or a square-shouldered wing chun punch, for which a back-foot push is impossible, will still generate the same long-tail force profile in figure 5-3 by making contact before the arm is fully extended and using the muscles in the arm to apply force by continuing the extension. The same profile appears when athletes tackle each other in other contact sports. There is an initial peak force at the moment of collision, but the legs continue to push after the initial peak.

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Advanced concepts: That little extra push generates more momentum. Even though most of the action occurs as the fist flies though the air, a punch is not necessarily over at the moment of impact. Any strike (even a high-energy punch) comes with the option to follow up the initial impact with additional force generated directly from the muscles. This force can feel like a push or a follow-through, and it generates momentum in addition to the momentum transferred at impact. This push usually involves farther extension of the limbs, pushing off the back foot, or both, and it can be just as important as the impact in a fight scenario.