Publisher: Simone Malacrida
This book is a journey into the world of electromagnetic waves and focuses on a historical and technological account of how they have routinely entered the daily life of society today. All sources of electromagnetic waves, natural or man-made, are carefully analyzed through language suitable for everyone and with repeated examples.
Galaxies are dynamic entities, constantly evolving through processes like mergers, collisions, and interactions with neighboring galaxies. When galaxies merge, their stars, gas, and dust can undergo dramatic transformations, leading to the formation of new stars and restructuring of the galaxy's shape. These interactions can trigger intense bursts of star formation and feed supermassive black holes at the galaxies' centers, leading to the emission of powerful jets of radiation. Furthermore, galaxies are not isolated entities but are interconnected within the vast cosmic web of the universe. They cluster together in groups and clusters, bound by their mutual gravitational attraction. These clusters can contain hundreds or even thousands of galaxies, each influencing the others' evolution through gravitational interactions and tidal forces. The study of galaxies encompasses various fields of astrophysics, including observational astronomy, theoretical modeling, and simulations. Observational techniques, such as telescopes operating across different wavelengths of light and gravitational wave detectors, allow astronomers to peer into the depths of galaxies across cosmic time.Show book
Imagine taking a computer algorithm's complex yet straightforward functions and applying them to your personal life. The results would lead to success, happiness, and confidence. Through THE SECRET SUCCESS ALGORITHM, understand how small steps can make a big impact, but more importantly, uncover the powerful potential of your mind and changes you can make to be better.Show book
Nurture your mind and relationships through feel-good tales set in nature. As we age, it's natural for memories to fade. Names, faces and events start to slip away without regular mental stimulation. One enjoyable and effective way to support your memory retention through your golden years is through reading stories. Not only is it a fun and relaxing activity, according to the American Academy of Neurology, the brain-stimulating activities from reading have been shown to slow down cognitive decline. It helps spark brain activity, bolster memory pathways, and cultivate a sense of self and connectivity. This book provides you a simple way to exercise your memory and help you bring details back into focus. With short stories set in familiar outdoor settings like parks, lakes, and gardens, you’ll find yourself transported into the great outdoors from the first chapter. Here’s a fraction of what you’ll discover inside: ● A delightful collection of short easy reads that jog your memory and support your brain health from the inside out ● Tales with familiar themes and relatable details that tap into nostalgia and bridge the past with the present ● Prompts that encourage reflection and spark conversation between friends and family – these are perfect for bringing generations together! ● An easy-to-digest format that gets you into the habit of reading, without any pressure ● Stories designed not just to engage your mind but also boost your mood and reduce feelings of isolation And much, much more! Whether you read this solo with a cup of tea or share the tales with family, this book creates the perfect low-pressure way for you to keep your brain sharp long into retirement while strengthening bonds that really matter. Invest in your health and relationships by adding this collection of short stories to your bookshelf.Show book
Become IT-Certified & Job-Ready with the Ultimate 2-in-1 CompTIA Guide for 2025! Master the skills you need to ace your CompTIA A+ (220-1101 & 220-1102) and Security+ (SY0-701) exams—and launch your career in IT with confidence. This comprehensive, beginner-friendly study bundle blends two high-impact certification paths into one clear, exam-focused roadmap. Whether you're a total newcomer or brushing up your skills, this guide provides everything you need to pass the exams—and thrive in the tech industry. 🔹 What’s Inside:✅ 450+ exam-aligned practice questions with detailed explanations📘 Full coverage of CompTIA A+ 220-1101 & 220-1102, from hardware to troubleshooting🔐 Deep dives into Security+ SY0-701 essentials—network security, risk management, and more💡 Real-world IT scenarios & exam-cracking strategies from certified experts🚀 Career tips to help you land interviews and grow in the IT field Whether you're chasing your first IT job or adding credentials to level up, this all-in-one study guide is your fast-track to CompTIA success. 📦 Perfect for: IT beginners, career changers, tech students, and anyone serious about passing on the first try. Start studying smarter—and get ready to pass with confidenceShow book
Architect Google Cloud Solutions That Go Beyond Certification Key Features? Master core GCP services, including Compute, Storage, and Networking.? Apply GCP design patterns to real-world enterprise architecture.? Prepare with exam-focused guidance, diagrams, and case scenarios. Book Description In today’s cloud-first world, the Google Cloud Professional Cloud Architect certification stands as one of the most respected credentials in enterprise IT. Ultimate Google Professional Cloud Architect Certification Guide is your companion to achieving that goal. This book goes far beyond exam preparation. It is a hands-on, real-world companion that walks you through every architectural decision-making point you will face on Google Cloud Platform (GCP). You will begin with the building blocks, such as Compute Engine, Autoscaling, Load Balancing, and Storage. From there, you will navigate through advanced networking, managed services like App Engine, and orchestration, using Google Kubernetes Engine (GKE). Table of Contents 1. GCP Compute Engine 2. Autoscaling and Load Balancing 3. GCP Storage Infrastructure (Block, File, and Object) 4. GCP Networking 5. Introduction to Managed Services on GCP and App Engine 6. Google Kubernetes Engine 7. Serverless Google Run Functions and Google Cloud Run 8. Introduction to Asynchronous Communication in GCP 9. Databases in GCP Overview 10. Relational, NoSQL, and Caching Databases 11. Authentication with Google Cloud IAM 12. Exploring IAM, Project Organization, and Encryption 13. Exploring Data Warehousing and Data Lifecycle on GCP 14. Google Cloud Operations Suite 15. Agile, DevOps, SRE, SDLC, and Other Important GCP Topics IndexShow book
The universe we observe with our naked eyes or through telescopes is only a fraction of the total cosmos. The rest of the universe, a vast portion, remains invisible and hidden from our view. This hidden matter is known as dark matter, dark energy, and other mysterious entities that make up the majority of the universe. Though we cannot directly observe these hidden components, their existence is inferred through indirect evidence, such as their gravitational effects on visible matter. The study of these hidden aspects of the universe is an ongoing effort to understand what makes up the majority of the cosmos. One of the most significant mysteries in modern physics is the nature of dark matter. This form of matter doesn't emit, absorb, or reflect light, making it completely invisible to conventional instruments. Yet, its presence is essential for explaining the structure and behavior of galaxies. Without dark matter, galaxies would not have enough mass to hold themselves together. The gravitational influence of dark matter helps galaxies maintain their shape and stability, preventing them from being torn apart by their own rotational forces. Though we can't see dark matter, we can detect its effects on visible matter, such as the way galaxies rotate. In addition to dark matter, dark energy is another invisible force that plays a crucial role in the universe. Dark energy is responsible for the accelerated expansion of the universe, a discovery that has stunned astronomers since the late 1990s. Unlike dark matter, which exerts a gravitational pull, dark energy pushes galaxies apart, counteracting the forces that would otherwise slow the expansion of the universe. This mysterious force is thought to make up about 68% of the universe's total energy density, yet little is known about its true nature. Understanding dark energy is one of the greatest challenges in modern cosmology.Show book
