Systems Science

All living things need air to survive. Air also protects Earth. Discover why air is an important part of nature!

Plants and animals from millions of years ago left behind fossils. Fossils can teach people about the past. They are also used for fuel. Discover why fossils are an important part of nature!

Most of Earth is covered in water. Water falls from the sky as rain or snow. All living things need water to survive. Discover why water is an important part of nature!

The muscular system is made up of three different kinds of muscles: skeletal muscles, smooth muscle, and heart muscle. But what does each kind of muscle do? And where in the body are they located? Explore the muscular system in this engaging and informative audiobook.

The human body is full of many wonders, some of which we have yet to explore! There's so much to discover, especially for young scientists! Jump-start your child's learning of biology with this program. In this book, kids will take a journey with Dr. Discovery Jones on an exciting and educational journey throughout the human body looking at the cells, the tissues, and the organs! Filled with fun facts, this book will fill young and curious minds with a great foundational knowledge of how the human body works.

After my last fight with Darius Windstorm, the Refuge has struck. With the Blobber world consumed by war, I know there’s only one place my team and I can find safety, and we start a frantic quest to find the runaway warriors in the deepest recesses of the dungeons. Even with a few new friends, the overbearing System won’t stay down for long. A reckoning is coming, and my status as a warlord means I’ll be at the forefront of any new strike against their world.

A soaring bridge is an obvious infrastructural feat, but so are the mostly hidden reservoirs, transformers, sewers, cables, and pipes that deliver water, energy, and information to wherever we need it. When these systems work well, they hide in plain sight. Engineer and materials scientist Deb Chachra takes listeners on a fascinating tour of these essential utilities, revealing how they work, what it takes to keep them running, just how much we rely on them—but also whom they work well for, and who pays the costs.

Permaculture, a Portmanteau of "permanent" and "agriculture" is growing in popularity around the world and for a good reason too. First introduced to protect nature and humankind, permaculture is both a philosophy and a practical approach to sustainable development.

There is an unaddressed Black mental health crisis in our world today. In The Unapologetic Guide to Black Mental Health, psychologist Reeda Walker offers a comprehensive guide to help African Americans combat stigma, increase awareness around mental illness, practice emotional wellness, and get the best care possible for Black people in an unequal system.

Gilbert Gosseyn n'est plus une victime. Grâce à sa maîtrise du A, il a appris à se servir de son cerveau second et est bien décidé à démasquer les acteurs obscurs d'un complot dont les ramifications ne cessent de s'étendre. Une partie d'échecs cosmique dont l'enjeu n'est autre que la survie du système solaire... Se révèlent ainsi deux des participants de ce jeu mortel qui se trame aux quatre coins de la galaxie : Enro le rouge, dictateur arriviste du plus grand empire, et le disciple, ombre fantomatique sans scrupules.

In the distant future, horrible dreams torment Admiral James T. Kirk, dreams prompted by his reading of Strangers from the Sky, a book about that historic first contact. He dreams of an alternate reality where he somehow changed the course of history, and destroyed the Federation before it began.

Jewels of Gwahlur by Robert E. Howard is a Conan the Barbarian adventure steeped in sword and sorcery. Set in the kingdom of Keshan, Conan embarks on a perilous quest to claim the legendary treasure known as the Teeth of Gwahlur. Facing treacherous priests, false oracles, and ancient supernatural forces, Conan must navigate deadly intrigues and uncover the secrets of the haunted city of Alkmeenon. Brimming with action, dark magic, and Howard’s vivid world-building, this classic tale captures the clash between barbarism and civilization in a suspenseful saga of treasure, betrayal, and survival.

The Kobayashi Maru is the test given to cadets at the Starfleet Academy - a simulated no-win situation in space. Now, the Starfleet officers share with each other the painful, often fierce lessons of their Kobayashi Maru as each man struggles to tap his inner strength and to overcome the most desperate situation of their careers! Featuring a dramatic reading by James Doohan and enhanced with sound effects and an original score!

The U.S.S. Enterprise is the site for a wedding that will unite two powerful rival families of the Tizarin. But Captain Picard's happiness is soon cut short by the arrival of Lwaxana Troi, the nagging mother of ship's counsellor Deanna Troi, and the notorious, all-powerful Q, who has come to examine and challenge the human concept of love. Read by Majel Barrett and John de Lancie!

We can encounter chaos in every system around us - even the smallest and simplest ones. Any system can fall into chaos, which prevents us to accurately predict its behavior. Even a small change in the initial conditions can lead to unexpectedly large-scale consequences. Therefore, we can often enter in panic, blame actors for events they are not responsible for, and our sense of security in the world can generally decrease.

Laterre is on the brink of war. The Third Estate are rioting against the injustices of a corrupt system. The Patriarche, reeling from the murder of his only heir, makes brutal attempts to quash the unrest, while a new militant faction launches a series of deadly attacks. And three outlaws find themselves pulled into the fray. Marcellus is now a traitor to his planet, willing to do anything to stop his grandfather from seizing control of Laterre. Chatine is a prisoner on Bastille. Alouette is a fugitive who has been lied to her entire life. These three renegades must risk everything.

A mad scientist. A murdered James Kirk. A universe collapsing onto itself! Featuring a dramatic reading by Leonard Nimoy and George Takei, and enhanced with sound effects and an original score!

From each according to ability, to each according to U-credit! The slogan of Sparta! 'United points', the currency created by the guileful System. Lord Leo is building an inimitable just government, the only one around. Other Lords look upon him with anger and greed. They aren't just looking, either: blades and spears sharpen behind his back, desperate to bring a stop to the glorious rampage of the Spartans across the new world.

From the best-selling author of A Vast Conspiracy and The Run of His Life comes Too Close to Call - the definitive story of the Bush-Gore presidential recount. A political and legal analyst of unparalleled journalistic skill, Jeffrey Toobin is the ideal writer to distill the events of the 36 anxiety-filled days that culminated in one of the most stunning Supreme Court decisions in history.

Living busily on Planet Earth, we rarely remember that we actually inhabit only a miniscule part of the universe. In The Planets and the Solar System, Jen Green paints the wider picture, and takes us on a journey across billions of kilometers in our galaxy, from our Sun to near and distant planets. Some, like Mercury, have a molten core surrounded with crust and spins quickly; Jupiter, on the other hand, is a big ball of gas.