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Big Questions from Little People

Big Questions from Little People

And Simple Answers from Great Minds
by Gemma Elwin Harris 2012 336 pages
3.88
1k+ ratings
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Key Takeaways

1. The Universe: A Vast Expanse of Wonder and Discovery

"You are really a child of the stars."

The cosmic perspective. Our universe began with the Big Bang over 13 billion years ago. From this explosive start, all the elements that make up our world were formed. The heavier elements, crucial for life, were created in the fiery cores of stars. When these stars exploded, they scattered these elements across space, eventually forming planets like Earth.

Our place in space. The Earth is part of a solar system orbiting the Sun, which is just one of billions of stars in our galaxy, the Milky Way. Beyond our galaxy lie countless others, forming a universe so vast it's almost incomprehensible. This cosmic scale puts our existence into perspective, reminding us of our small but significant place in the grand scheme of things.

  • The Sun is 93 million miles away from Earth
  • Light from the Sun takes about 8 minutes to reach us
  • Our galaxy contains an estimated 100-400 billion stars
  • The observable universe contains an estimated 2 trillion galaxies

2. Life on Earth: Diversity, Evolution, and Interconnectedness

"Everything is made up of atoms. You are made up of atoms, so are rocks, water, animals, plants and air molecules."

The building blocks of life. All living things on Earth share a common ancestry and are built from the same fundamental components. DNA, the blueprint of life, contains instructions for building and maintaining organisms. This shared genetic heritage underscores the interconnectedness of all life forms.

Biodiversity and adaptation. Over billions of years, life has evolved into an astounding variety of forms, each adapted to its specific environment. From microscopic bacteria to towering sequoias, from deep-sea creatures to high-flying birds, the diversity of life on Earth is a testament to the power of evolution and natural selection.

  • There are an estimated 8.7 million species on Earth
  • Only about 1.2 million species have been identified and named
    •99% of all species that have ever lived are now extinct
  • New species are still being discovered, especially in remote areas like rainforests and deep oceans

3. The Human Body: A Marvel of Complexity and Adaptation

"Your brain is what you think with, so eventually you can think about being 'you'."

The brain: our command center. The human brain, with its billions of neurons and trillions of connections, is arguably the most complex structure in the known universe. It controls our thoughts, emotions, memories, and bodily functions, shaping our very sense of self and consciousness.

Systems working in harmony. Beyond the brain, the human body is a marvel of interconnected systems. The circulatory system pumps life-giving blood, the respiratory system exchanges gases with our environment, the digestive system extracts nutrients from food, and the immune system defends against threats. These systems, and many others, work in concert to keep us alive and functioning.

  • The human brain contains about 86 billion neurons
  • An adult human body contains about 37 trillion cells
  • The human body has 206 bones and over 600 muscles
  • Our DNA, if stretched out, would reach to the moon and back 1,500 times

4. The Power of the Mind: Cognition, Emotion, and Creativity

"You may have noticed that your parents get angry with you for fighting, and that might make you feel cross with them because they don't seem to understand why you are so upset."

Understanding emotions. Our minds are capable of a vast range of emotions, from joy to sorrow, anger to love. These emotions play a crucial role in our lives, influencing our decisions, relationships, and overall well-being. Learning to understand and manage our emotions is a key part of personal growth and social interaction.

The creative spark. Human creativity is one of our most remarkable traits. Whether through art, music, literature, or scientific innovation, our ability to imagine and create has transformed the world around us. This creative capacity allows us to solve problems, express ourselves, and push the boundaries of what's possible.

  • The human brain can process images seen for as little as 13 milliseconds
  • We typically experience 6-7 major emotional states
  • Creativity involves the interaction of multiple cognitive processes and emotions
  • Regular creative activities can improve mental health and cognitive function

5. Science and Technology: Unraveling Mysteries and Shaping the Future

"Time travel is possible, but it would be very difficult to build a time machine. You might need two black holes to do the job!"

The scientific method. Science is a powerful tool for understanding the world around us. Through observation, hypothesis, experimentation, and analysis, scientists continually expand our knowledge of the universe. This process has led to countless discoveries and innovations that have transformed human life.

Technological progress. Building on scientific knowledge, technology has revolutionized every aspect of our lives. From the wheel to the smartphone, from penicillin to gene editing, technological advances have extended our capabilities and reshaped our society. As technology continues to evolve at an ever-increasing pace, it presents both exciting opportunities and significant challenges.

  • The scientific method was formalized in the 17th century
  • The Internet was invented in 1969 but became widely available in the 1990s
  • Artificial Intelligence is rapidly advancing, with potential to transform many industries
  • Renewable energy technologies are crucial for addressing climate change

6. Nature's Phenomena: Explaining the World Around Us

"Rainbows are made of light."

Weather and climate. The Earth's atmosphere is a complex system that gives rise to a wide range of weather phenomena. From the gentle patter of rain to the fury of hurricanes, weather shapes our environment and influences our daily lives. On a larger scale, climate patterns determine the long-term conditions in different regions of the world.

Geological processes. The Earth itself is dynamic, with processes that shape and reshape its surface over millions of years. Plate tectonics drive the movement of continents, create mountains, and trigger earthquakes and volcanic eruptions. Erosion and deposition sculpt landscapes, creating diverse environments from sandy beaches to towering cliffs.

  • A rainbow forms when sunlight is refracted and reflected by water droplets
  • The Earth's atmosphere is about 480 km (300 miles) thick
  • There are about 1,500 potentially active volcanoes worldwide
  • The continents move at an average rate of 1 inch per year

7. Human Society: Culture, Communication, and Relationships

"We are made by others while we make ourselves. We make ourselves while others make us."

Cultural diversity. Human societies around the world have developed a rich tapestry of cultures, each with its own traditions, beliefs, and ways of life. This diversity enriches our collective human experience and provides different perspectives on the world.

The power of language. Language is a fundamental aspect of human society, allowing us to communicate complex ideas, share knowledge, and build relationships. With thousands of languages spoken around the world, each offers a unique way of understanding and describing reality.

  • There are over 7,000 languages spoken in the world today
  • About 40% of the world's languages are at risk of extinction
  • Cultural practices can significantly influence brain development
  • Social connections are crucial for mental and physical health

8. The Arts: Expression, Imagination, and Cultural Significance

"You can't make yourself fall in love, any more than you can decide to be taller or kiss your own elbow."

Art as human expression. Throughout history, humans have created art as a means of expression, communication, and exploration of the human experience. From cave paintings to digital media, art reflects and shapes our understanding of the world and ourselves.

The impact of literature. Books and stories have the power to transport us to different worlds, expand our understanding, and cultivate empathy. Through literature, we can explore complex ideas, experience diverse perspectives, and grapple with the fundamental questions of human existence.

  • The oldest known cave paintings are over 40,000 years old
  • Music has been shown to activate multiple areas of the brain simultaneously
  • Reading fiction can improve empathy and social cognition
  • The global art market was valued at $65.1 billion in 2021

Last updated:

Review Summary

3.88 out of 5
Average of 1k+ ratings from Goodreads and Amazon.

Big Questions from Little People is a collection of children's questions answered by experts. Reviewers found it entertaining and educational for both kids and adults, praising the diverse range of topics and accessible explanations. Some appreciated the book's ability to spark curiosity and discussion. Criticisms included occasional simplistic answers and translation errors in non-English editions. Overall, most readers enjoyed the concept and execution, finding it a valuable resource for parents and children to explore complex topics together.

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About the Author

Gemma Elwin Harris is a freelance editor and features writer. Big Questions from Little People is her first book, inspired by her son and two curious nieces. She compiled questions from children aged 4-12 and sought answers from experts in various fields. Harris aimed to create an engaging and informative resource for families to explore complex topics together. Her approach emphasizes the importance of encouraging children's curiosity and providing thoughtful, accessible explanations. Harris has since published two more books in the series, continuing to bridge the gap between children's inquiries and expert knowledge.

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