Ons weet dat die maan iets met die getye te doen het, maar het jy geweet dat jy met volmaan altyd dieselfde kant van die maan sien? Of dat weerligstrale vol vernietigende elektrisiteit is, maar dat ’n elektriese paling ’n lading van tot 600 volt kan vrystel?

Hierdie feite is deel van ’n magdom kennis oor die natuur, fisiese wetenskap en die ruimte wat die RSG-program Hoe verklaar jy dit? reeds jare lank beantwoord. Hierdie publikasie bevat ’n keur uit die honderde vrae van nuuskierige luisteraars wat deur kundiges verduidelik is om die wêreld minder vreemd te maak, want nie alle kennis van die wêreld om ons is voor die hand liggend nie. Daar is honderde verskynsels in die natuur en ruimte wat vra om verklaar te word. Dan praat ons nie eens van die mensgemaakte uitvindings soos die internet, persoonlike rekenaars, globale posisioneringstelsels, selfone, radiogolwe, teorie van evolusie, relatiwiteitsteorie, narkose en mense in die ruimte nie. Agter die alledaagse skuil die fassinerende werking van kragte en wette en die wetenskap in werking: Wat bepaal dat ’n mens se hart aan die linkerkant van die liggaam sit? Hoekom vries water in ’n dam van bo en nie van onder af nie? Kan gene deur omstandighede gemodifiseer word?

Hoe Verklaar Jy Dit? is ’n boek wat jou belangstelling in die wêreld om jou sal prikkel. Dit is ’n boek wat op sy eie gelees kan word, wat op die koffietafel kan lê en wat saam kan gaan kamp om wonderlike gesprekke om die braaivleisvuur uit te lok.

In our deluge of information, it's getting harder and harder to distinguish the revelatory from the contradictory. How do we make health decisions in the face of conflicting medical advice? How can we navigate the next uncomfortable discussion with family members, who follow completely different experts on climate?

In Third Millennium Thinking , a physicist, a psychologist, and a philosopher introduce readers to the tools and frameworks that scientists use to keep from fooling themselves, to understand the world, and to make decisions. We can all borrow from these trust-building techniques that scientists have tested and developed for more than two millennia to tackle problems both big and small.

Readers will learn:

• How to gain a solid understanding of the facts that shape our modern world.
• How to navigate through a multitude of possibilities and make informed choices.
• How to collaborate effectively in tackling the challenges we encounter today.
• And much more.

Through engaging thought exercises, clear language free from technical jargon, and compelling illustrations drawn from history, everyday life, and insider stories of scientists, Third Millennium Thinking presents a fresh approach for readers to untangle the confusing and make sense of it all.

Do you often feel exhausted and negative? Do you spend your days feeling tired and wired? Your nights unable to fall asleep easily, or without a drink? Do you wake up anxious and stressed and in need a coffee to get going? Do you forget what you were doing, forget people’s names and where you put things? Is your mental acuity and memory slipping? Are you concerned about your memory or mental wellbeing?

Something depressing is happen to humanity, and possibly even you. Our brains are degenerating and – in parallel – we’re seeing a worrying increase in mental illness across the world. Rates of anxiety, depression, dementia, ADHD and autism are all increasing at an alarming rate across the globe. According to the World Health Organisation, our declining brain health is the greatest threat we face – more than cancer, diabetes or obesity.

Individually and collectively,though, we can optimise our brain health and cognitive function – to improve mood, memory, stress resilience, sleep and ability to focus. How? By understanding the powerful effects that nutrition and other holistic lifestyle factors can have on our brains. In Upgrade Your Brain, bestselling author Patrick Holford will draw on his 40 years’ of expertise – as well as countless experts from around the world – to teach us all how to reverse the tide.

Youth Revolution is the inspirational story of how a sixteen-year-old high-school student from Johannesburg, Kiara Nirghin, overcame huge health obstacles to win the grand prize at the 2016 International Google Science Fair for her unique and innovative solution to worldwide drought. Having experienced bacterial meningitis, undiagnosed bilharzia and severe weight loss, Kiara was forced to postpone her school career for hospitalisation, with a real chance of losing her hearing, her sight and the use of her limbs.

Youth Revolution not only covers her journey from the hospital bed to the stage as the winner of the science award, but also looks at issues surrounding stagnant youth innovation, while considering the dangers of lacking diversity in STEM (science, technology, engineering and maths). It also includes contributions from prominent women in science and education, among them Malala Yousafzai, VP of Education and University Programs for Google and the recipient of the L’Oréal-UNESCO Award for Women in Science.

Youth Revolution is a deeply human and truly inspirational real-life story that will enthral teenagers and adults alike, and proves that even ‘ordinary’ teenagers can do extraordinary things.

For a decade, Ecco has published the most outstanding science writing in America, collected in highly acclaimed annual volumes edited by some of the most impressive and most important names in science and science writing today: James Gleick, Timothy Ferris, Matt Ridley, Oliver Sacks, Dava Sobel, Alan Lightman, Atul Gawande, Gina Kolata, Sylvia Nasar, and Natalie Angier.

Now series editor Jesse Cohen invites the previous guest editors to select their favorite essays for this one-of-a-kind anthology. The result is an outstanding compendium--the best science writing of the new millennium, featuring an introduction by the series' 2010 editor and "New York Times" bestselling author of "How Doctors Think," Jerome Groopman.

Get the answers you need at your fingertips faster than any other source. Success in Physics is critical when entering the growing fields of technology, computer science and engineering that will support our future progress and innovation with breakthroughs and advances. To help retain the facts, equations and concepts essential to success in class and beyond, these 6 laminated pages can be referenced quickly and easily while studying, as a refresher before exams or even as a desktop reference beyond school. Expertly written by author, editor and professor Brett Kaabel PhD, and designed for quick use and high retention. Be sure to get our original Physics guide and Physics 2 for more complete coverage and better grades for an unmatched value. 6 page laminated guide includes: Introduction, Constants & Definitions Classical Mechanics Kinematics, Newton's Laws Work & Kinetic Energy, Potential Energy (U) Conservation of Energy, Momentum Simple Harmonic Motion (SHM) Gravitation Thermodynamics Temperature Scales Zeroth Law, First Law & Second Law of Thermodynamics Thermal Properties of Systems Kinetic Theory of Gasses Waves Types of Waves Transverse vs. Longitudinal Waves Wave Equation Electromagnetism Electric Charge, Electric Field Magnetic Field, Magnetic Fluz Gauss's Law for Magnetism Faraday's Law of Induction Electromagnetic Waves, Electric Circuits Special Relativity Einstein's Postulates, Time Dilation Length Contraction Lorentz Transformation, Velocity Transformation Relativistic Doppler Effect Relativistic Energy & Momentum Quantum Mechanics Quantized Atomic Energy Levels Nuclear Physics Atoms, Nuclei, Nuclear Forces Radioactivity, Nuclear Reactions Force Carriers

It is time to learn about living things! Can you spot which things are living? Can you tell which things are nonliving? With images that are easy to identify and clear, simple sentence structures, this science reader simplifies scientific concepts for young readers. A fun and easy science experiment and Your Turn! activity provide more in-depth opportunities for additional learning. Nonfiction text features include a glossary and an index. Engage young learners with this dynamic text!

Tons of ACT Science practice in an easy-to-use format-updated to match the latest exam requirements, and now featuring a 20-question Diagnostic Quiz Practice makes perfect, and with 500 ACT Science Questions to Know by Test Day, Third Edition, you'll get a ton of practice-with hundreds of questions, smart test-taking tips, and a 20-question Diagnostic Quiz to help you track your progress. It's the perfect way to sharpen your skills and build your confidence for test day. Organized by subject with detailed answers to every question, 500 ACT Science Questions to Know by Test Day, Third Edition provides excellent practice to help you make the most of your review time. With small bits of information presented for quick and easy reference and smart strategies for test day, this essential study guide is helpful for all types of students, whether you're looking for a thorough refresh of topics or need extra help understanding specific question types. Features: 500 ACT Science questions and answers organized by subject, refreshed to match the latest exam requirements NEW! 20 Question Diagnostic Quiz to test your knowledge Written to parallel the topic and format of the science section of the ACT, accompanied by answers with comprehensive explanations Ideal and effective practice to help build the skills you need

Ultimate quick reference guide for any earthling's questions about our solar system, whether a student, lover of all things space, or stargazing and night sky enthusiasts. Beautifully designed with images from NASA and expertly written by science author, consultant and professor John Roch, PhD who includes more facts per page than any book or website. This 6 page laminated guide will last a lifetime so you will always know what the surface temperature of Mercury is, how many known satellites Neptune has, what the Kuiper Belt is, or what other dwarf planets there are besides Pluto? 6-page laminated guide includes: Solar System Breakdown Essential Terms Space Missions Listed for Each Object & Planet Below Sun Mercury Venus Earth Moon Mars Asteroid Belt Ceres Jupiter Saturn Uranus Neptune Kuiper Belt Pluto Haumea Makemake Eris More Solar System Facts