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Alex Carter

Alex Carter

Writer and editor with an interest in science, technology, and the ideas shaping the modern world.

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  • Visualization of a black hole with an accretion disk and light distorted by gravitational lensing.

    What we know about black holes

    Black holes are regions of space where gravity becomes so strong that nothing, not even light, can escape once it crosses a certain boundary.

  • Water surface ripples showing wave patterns formed by oscillations and light reflection.

    Understanding waves and energy

    Waves transfer energy from one place to another and appear in many forms, from ocean swells to light and sound.

  • Silhouette of trees near a body of water under a star-filled night sky.

    The illusion of stillness in the night sky

    The night sky appears static, but everything within it is in constant motion. What we perceive as stillness is the result of vast distances and time scales far beyond human experience.

  • Spheres arranged in a circular pattern floating against a dark background, illustrating orbital motion.

    How gravity shapes the universe

    Gravity shapes the structure of the universe, influencing everything from falling objects to the motion of galaxies.

  • Sea turtle moving through underwater marine habitat with natural light penetration.

    Why biodiversity is important

    Biodiversity helps ecosystems remain resilient by supporting a wide range of interactions between species and their environments.

  • Close-up of a woman’s face focusing on green eyes and facial expression.

    How attention shapes perception

    Attention is a limited resource that helps the brain prioritize information while filtering out countless competing stimuli.

  • Close-up of computer code displayed on a screen with shallow depth of field.

    Why open-source software matters

    Open-source software allows anyone to inspect, modify, and distribute code, making it one of the foundations of modern technology.

  • Andromeda galaxy with dense star field and spiral structure in deep space.

    Why galaxies come in different shapes

    Galaxies take on different shapes as a result of their formation history, internal dynamics, and interactions with other galaxies.

  • Microscopic visualization of a biological cell structure on a blue background.

    How cells maintain internal balance

    Cells regulate their internal environment to maintain stability through continuous chemical adjustments, a process known as homeostasis.

  • Desk setup with dual monitors showing source code and a smartphone, representing a software development environment.

    Why modern software is increasingly complex

    Modern software has become increasingly complex due to layers of abstraction, scalability demands, and the growth of interconnected tools and systems.

  • Human brain shown in close-up detail against a black background.

    How the brain constructs reality

    The brain does not passively record reality; it actively constructs it through prediction, prior experience, and continuous interpretation of sensory input.

  • Minimal workspace with an iMac and iPhone on a wooden desk in soft natural light.

    The evolution of personal computing

    Personal computing has evolved from centralized machines to interconnected devices that shape communication, work, and everyday digital experiences.