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83 results for “space”
- The Perpetually Curious! › Canonical › Botanical WondersArticle
🌱 Why Fruits Have Seeds: The Many Ways Plants Begin Again
From section: 🌬️ Other fruits travel without being eatenDispersal also has two dimensions. Movement carries a seed through space, while dormancy can carry its possibility forward through time. A dormant seed can delay germination even after reaching a destination. …
- The Perpetually Curious! › Canonical › History, Arts, and CultureArticle
🌍 Vertical Worlds: The 14 Lokas in Ancient Indian Cosmology
From section: 🧭 Spatial, symbolic, and philosophical readingsAt the same time, sacred space is not identical to modern cartography. A realm can be narrated as a place while also carrying ethical, ritual, or philosophical significance. …
- The Perpetually Curious! › Canonical › Planet EarthArticle
🌏 When the Pacific Breathes Warm: El Niño and the Changing Rhythms of Rain
From section: 📡 How scientists monitor El NiñoScientists monitor El Niño by combining measurements made within the tropical Pacific with observations collected from space. …
- The Perpetually Curious! › Canonical › Planet EarthArticle
🌧️ When Clouds Let Go: Why It Rains and How Raindrops Are Born
From section: Frequently Asked Questions+Can rain be seen from space? Individual raindrops are too small to be resolved separately from orbit. …
- The Perpetually Curious! › Canonical › Planet EarthArticle
🌈 When Sunlight Paints the Rain: The Quiet Geometry of Rainbow Formation
From section: 🌈 Primary and secondary rainbows: more reflections, different anglesBetween the two arcs is Alexander’s dark band. Primary-rainbow rays brighten the region inside the primary bow, while secondary-rainbow rays add more light beyond the secondary bow. The space between them receives less concentrated rainbow light, so it appears noticeably darker by comparison.
- The Perpetually Curious! › Canonical › Botanical WondersArticle
🌲 When Trees Carry Time: Oldest Tree Species, Ancient Forests, and Sacred Trees
From section: 🌋 Ancient and extinct forest-builders: The first Devonian forests… It is often reconstructed as exceeding 65 feet (20 meters), with some estimates approaching about 100 feet (30 meters). Because of its combination of features, Archaeopteris helps bridge the evolutionary space between spore-bearing plants and seed-bearing trees.
- The Perpetually Curious! › Canonical › PhysicsArticle
🌟 When Light Learns to Answer Back: The Quiet Science of Mirrors
From section: Frequently Asked Questions+… A virtual image is an image that appears to come from behind the mirror, even though light does not actually pass through that apparent location. The reflected rays enter the eye as if they had traveled from a point behind the glass, so the brain interprets the image as occupying that space.
- The Perpetually Curious! › Canonical › Environment & SustainabilityArticle
🔄 Tides of Plastic: Microplastic Pollution in the Oceans and Its Journey Back to Us
From section: 🌐 Ecosystems under quiet pressure: community and habitat level impactsMarine ecosystems are built from many interacting species that share space, resources, and energy flows. Microplastics may influence these systems in subtle and uneven ways, depending on particle type, concentration, habitat, and exposure conditions.
- The Perpetually Curious! › Canonical › Engineering & TechnologyArticle
🚂 Echoes of Steam, Currents of Steel: Train Engines and the Rise of High-Speed Motion
From section: 🧲 Magnetic levitation: floating on fields of force… That combination explains why maglev remains limited to specialized corridors where investment, geography, and passenger demand align. Even so, the idea of removing wheel contact pushed guided travel into a new imaginative space. …
- The Perpetually Curious! › Canonical › Planet EarthArticle
🏔️ Mount Kailash: A Summit Where Water, Story, and Sky Converge
From section: Frequently Asked Questions+Is Mount Kailash visible from space? Mount Kailash can be observed in satellite imagery, where its distinctive shape and surrounding lakes are clearly visible.