Cards starting with H

40,576 cards. Page 677 of 677.

Hyperloop: the fifth mode of transport that inspired a movement, then a bankruptcyIn 2013 Elon Musk published an open-source design for pods gliding on air bearings through low-pressure tubes, likening it to a cross between a Concorde, a railgun and an air hock…
Hyperons: The strange, heavy subatomic particles that might exist in neutron star coresHyperons are baryons that contain strange quarks, making them heavier than the protons and neutrons that form ordinary matter. These particles are so unusual that their discovery …
Hyperpop got its name from a line of Spotify metadataA data analyst tagged some tracks hyperpop in Spotify's system in 2018. A year later a playlist editor spotted the label, built a playlist around it, and a scattered online scene …
Hyperspectral imaging helps identify materials used in historical paintings and manuscriptsResearchers at the Nello Carrara Institute and the National Gallery of Art have utilized hyperspectral imaging to study cultural heritage. By capturing hundreds of narrow light ba…
Hyphanet is a decentralized network designed to make censorship impossible by forgetting unrequested data.Hyphanet, formerly known as Freenet, is a peer-to-peer platform built for anonymous communication and censorship-resistant publishing. By distributing encrypted data across a glob…
Hypnos, the Greek god who owned half of every human life through sleepIn Greek mythology, Hypnos is the personification of sleep, a gentle deity who dwells in a lightless underworld grotto. Though he is the son of Night, his influence is profound: h…
Hypnosis is not mind control, but a state of heightened focus and suggestibility.Forget the swinging watches and clucking chickens of Hollywood. Real hypnosis is a natural, active state of deep relaxation and intense concentration, similar to getting lost in a…
Hypochondria began as a word for the belly below your ribsThe Greek hypokhondrios meant the soft region under the cartilage of the breastbone, and in Late Latin hypochondria simply meant the abdomen. Today the word names persistent, disa…
Hypomania is more than just feeling good; it is a distinct, high-energy state.Often mistaken for a simple mood boost, hypomania is a specific, sustained period of elevated energy and activity. While it may feel like a productive edge, it is a clinical state…
Hypospadias affects roughly one boy in 250, and its cause is unknownIn hypospadias the urinary opening forms somewhere other than its usual spot at the tip of the penis. It ranks as the second most common birth difference of the male reproductive …
Hypothesis tests weigh evidence against a null claimA statistical hypothesis test asks whether sample data give enough evidence against a default claim about a population. Roughly one hundred specialized tests exist; each turns raw…
Hypovolemic shock occurs when your body loses so much fluid that organs begin failing.When you lose more than 20 percent of your blood volume, your heart struggles to circulate enough oxygen to keep your organs functioning. This emergency state, known as hypovolemi…
Hypoxia means tissues starve for oxygen, not just thin bloodHypoxia is tissue oxygen shortage—local or whole-body—distinct from hypoxemia, which names low oxygen in arterial blood. Total absence is anoxia. Healthy people meet hypoxia climb…
Hypsometry is the science of measuring Earth's surface elevation and depth relative to sea level.How do we map the world's verticality? Hypsometry provides the data to quantify land distribution across different elevations. By using specialized tools and modern digital system…
Hyrule Warriors: When Nintendo's Iconic Legend of Zelda Met Dynasty Warriors' Hack and SlashIn 2014, Nintendo and Koei Tecmo merged two distinct gaming worlds into one. By grafting the frantic, large-scale combat of the Dynasty Warriors series onto the beloved setting of…
Hyundai went from punchline to third-largest carmaker with a bold warrantyIn the late 1980s, American comedians joked that Hyundai stood for Hope You Understand Nothing's Driveable And Inexpensive. The company's answer was to spend heavily on quality an…