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When you grow old, something extraordinary begins to happen. Not to your body, which inevitably weakens, but to your awareness. You start to see time not as a road that stretches endlessly ahead, but as a circle closing in on itself. You realize that all the things you once thought mattered, possessions, opinions…
Learning to communicate in and with a culture of science is a much broader undertaking than mastering a body of discrete conceptual or procedural knowledge. One observer, for example, describes the process of science education as one in which learners must engage in "border crossings" from their own everyday world…
"Well, the Book"s wrong, for I have been out on my feet." For Kuno was possessed of a certain physical strength. By these days it was a demerit to be muscular. Each infant was examined at birth, and all who promised undue strength were destroyed. Humanitarians may protest, but it would have been no true kindness to…
56. When vision fails When vision fails Direction is lost. When direction is lost Purpose may be forgotten. When purpose is forgotten Emotion rules alone. When emotion rules alone, Destruction…destruction. ∞ = Δ 57. Self is Self is. Self is body and bodily perception. Self is thought, memory, belief. Self creates…
The first study to assess directly the risk of cancer after CT scans in childhood found a clear dose-response relationship for both leukemia and brain tumors: risk increased with increasing cumulative radiation dose. For a cumulative dose of between 50 and 60 milligray or mGy (mGy is a unit of estimated absorbed dose…
...regular endurance exercise leads to four major consequences: Increased ability of the heart to eject blood increased ability of the blood vessels to send blood to where blood is needed Increased number of capillaries (the vessels that deliver oxygen and ‘food’ to the muscles) increased size and the number of…
First of all, convenientia. This word really denotes the adjacency of places more strongly than it does similitude. Those things are 'convenient' which come sufficiently close to one another to be in juxtaposition; their edges touch, their fringes intermingle, the extremity of the one also denotes the beginning of…
Contrast two answers to the question, Why do we like certain tunes? Because they have certain structural features. Because they resemble other tunes we like. The first answer has to do with the laws and rules that make tunes pleasant. In language, we know some laws for sentences; that is, we know the forms sentences…
What happens when a mind is no longer tied to a body? What happens when those of greatest ability are enslaved by those of greatest power? What happens when Humanity is the new kid on the block? When minds are read like books and books are illegal? Shock: Social Science Fiction is a game, a set of rules, that you’re…
The DHA-deprived rats also developed signs of resistance to insulin, a hormone that controls blood sugar and regulates synaptic function in the brain. A closer look at the rats' brain tissue suggested that insulin had lost much of its power to influence the brain cells. "Because insulin can penetrate the blood–brain…
It was possible now to look back into time and read off a complete DNA sequence from any moment in an individual’s life. And it was possible to download a copy of that person’s mind and, by putting the two together, regenerated body and downloaded mind, to restore her … We live on Mars, the moons of the outer planets…
The right to life, the right to not have other people prevent oneself from surviving, is a central right, without which all other rights have no meaning. But to realize the right to life we need other rights. Another central right for any humanistic view of human rights is the right to seek happiness. Without it human…
Knowledge understanding The facts The meaning of the facts A body of coherent facts The “theory” that provides coherence and meaning to those facts Verifiable claims Fallible, in-process theories Rightor wrong A matter of degree or sophistication I know something to be true I understand why it is, what makes it…
OK, Nicole, while you’re lying still, move your eyes around the room. Even without moving your head, you can see the lamp over on the table. Now look over at your baby pictures. See them? Now look at the bookcase. Can you see the big Harry Potter book there? Now look back at the lamp. Do you see how you have the power…
Your heart might be pounding, you might be breathing faster, maybe breaking out into a sweat. And normally, we interpret these physical changes as anxiety or signs that we aren't coping very well with the pressure. But what if you viewed them instead as signs that your body was energized, was preparing you to meet…
But I would like to sound one note of warning. Penicillin is to all intents and purposes non-poisonous so there is no need to worry about giving an overdose and poisoning the patient. There may be a danger, though, in underdosage. It is not difficult to make microbes resistant to penicillin in the laboratory by…
The world with its quarks and chromosomes, its distant lands and spiral nebulae, is like a vast computer in a black box, forever sealed except for its input and output registers. These we directly observe, and in the light of them we speculate on the structure of the machine, the universe. Thus it is that we think up…
We recognize in the concept of heat which appears here a similarity to other physical concepts. Heat is, according to our view, a substance, such as mass in mechanics. Its quantity may change or not, like money put aside in a safe or spent. The amount of money in a safe will remain unchanged so long as the safe…
The human body is an assembly of chemicals, as is all food & all medicine. So what we label as a drug is a social construct. Lifting weights changes your bio-physiology in a way that creates performance-enhancing effects on your body. Drinking coffee changes your metabolism in a way that creates performance-enhancing…
A most fundamental problem, for thousands of years wholly obscured by its complications, is that of motion. All those motions we observe in nature that of a stone thrown into the air, a ship sailing the sea, a cart pushed along the street are in reality very intricate. To understand these phenomena it is wise to begin…