The World's Best Book Summaries
Do dolphins smell? And what can a dolphin’s sense of smell tell us about human evolution? “Do dolphins smell” is an interesting question, and a complicated one. While dolphins do have odor genes that allow them to smell, they don’t actually use their sense of smell. So, do dolphins smell? Find out the answer below.
Why do humans have teeth? How did our teeth develop, and why do we need them? The answer to the question “why do humans have teeth” might surprise you. Our teeth evolved over time, partly from our ocean ancestors. Scientists can trace back why humans have teeth to our early ancestors. So why do humans have teeth? Keep reading to find out.
What is real value in a technological revolution? How does real value align with the phases of these industrial revolutions, and why does it matter? Real value and paper value are two important parts of phase 2 in technological revolutions. These determine the value of a new technology and its potential for economic growth. Read more about real value, paper value, and phase 2 below.
Can looking toward the future help you build psychological strength? How does the future help you get through hard times in the present? Looking toward the future is something humans do all the time. But it can also be a tool of building strength to help you survive a difficult present. Read more about how looking toward the future can help you build psychological resistance and survive trauma according to Viktor Frankl.
How did human eyesight form? How do our eyes work and how does it connect to human evolution? Human eyesight formed as humans evolved from our ancestors. The way our eyes work is a complicated process, and we can get clues on how it came to be from many creatures—including the most ancient ones that contributed to forming human vision. Read more about human eyesight and how it evolved over time.
What is the human sense of smell? How did it develop and why do we need it? The human sense of smell is one of our core senses. Like all other parts of our bodies, the human sense of smell developed over time and can be traced back to our ancestors. Read more about the human sense of smell and how it developed.
What is financial innovation? In which phase of technological revolution does financial innovation happen and how does it work? Financial innovation occurs when a technological revolution reaches maturity and then can explore wealth-building endeavors related to the revolution’s economic prosperity. Read more about financial innovation and phase 4 below.
What is psychological resistance? How can you build it, and why do you need it? Psychological resistance is a person’s ability to survive events that are psychologically difficult or damaging. In his book Man’s Search for Meaning, Viktor Frankl puts forth three methods of resistance. Read more about psychological resistance and how it takes shape.
What does the inner ear do? How does the inner ear work, and why do humans have them? The inner ear is a part of the human body that is inside the skull. It helps us stay balanced, amongst other things. So, what does the inner ear do and why do we need it? Keep reading to find out.
How does the human ear work? How did the human sense of hearing develop over time? The human ear has a long history and comes from many years of evolution. We can also trace our hearing and the hearing of other animals back to common ancestors. Read on to answer the question “how does the human ear work” and more.