In simple terms Plate tectonics is the idea that Earth’s rigid outer shell is broken into large slabs that move slowly over the hotter, softer layer underneath. The US Geological Survey describes a dozen or more large and small solid slabs, called lithospheric or tectonic plates, moving relative to one another on top of a […]
Plate tectonics is the theory that Earth's outer shell is broken into slabs that move, building mountains and causing earthquakes at their edges.
In simple terms Primary aldosteronism is a hormone disorder in which the adrenal glands, which sit on top of the kidneys, release too much aldosterone. The extra hormone pushes blood pressure up. It is also called Conn syndrome. The word primary means the problem starts in the adrenal glands themselves. How it works Aldosterone tells
Primary aldosteronism is a disorder in which the adrenal glands make too much aldosterone, which raises blood pressure.
In simple terms A prime number is a whole number greater than 1 that can be divided evenly only by 1 and by itself. Seven is prime, because no other whole number divides it without a remainder. Six is not, because 6 = 2 × 3. Whole numbers above 1 that are not prime are
A prime number is a whole number greater than 1 whose only positive divisors are 1 and itself, such as 2, 3, 5 and 7.
In simple terms A finding replicates when a different team asks the same question, gathers its own data, and reaches a consistent answer. The replication crisis is the concern that this happens less often than scientists assumed. It is an argument about how much confidence a single published result deserves. It is not a claim
The replication crisis is the finding that many published scientific results do not hold up when other researchers repeat the study with new data.
In simple terms Sanctions are penalties applied between governments rather than inside a courtroom. They cut off trade, money or travel to press a target into changing course. The defining feature is what they are not. They stop short of armed force, sitting between a diplomatic protest and a war. How it works Sanctions come
Sanctions are restrictions one country or bloc imposes on another state, group or individual to change its behavior without using military force.
In simple terms A Series A is the first large round of outside investment most startups raise, and usually the point at which professional venture capital firms come in. The name comes from the shares issued. Investors receive Series A preferred stock rather than the ordinary shares founders hold. The US Securities and Exchange Commission
A Series A is a startup's first large venture capital round, named after the class of preferred stock the investors receive.
In simple terms Light in a vacuum travels at exactly 299,792,458 meters per second. Not approximately. Exactly. That precision does not come from an ever more careful experiment. Since 1983 the number has been fixed by international agreement, and the meter is defined from it. How it works In 1983 the General Conference on Weights
The speed of light in vacuum is exactly 299,792,458 meters per second, a fixed value that now defines how long a meter is.
In simple terms Statistical significance is a check on whether a pattern in data could plausibly be a fluke. Researchers start from a null hypothesis, the assumption that there is no real effect. They then ask how surprising their data would be if that assumption were true. How it works The answer arrives as a
A result is statistically significant when it would be unlikely to appear by chance alone if the effect being tested were truly absent.
In simple terms A Treasury yield is the yearly return on a bond issued by the United States government. It is quoted as a percentage. The government fixes the interest payment when it sells the bond. The yield moves afterward, because the price investors pay for that bond keeps changing in the open market. How
A Treasury yield is the annual return an investor earns on US government debt, set by the price buyers pay in the market.
In simple terms Vertical integration means a company runs more than one step of its own supply chain. Instead of buying from outside suppliers or selling through outside distributors, it owns or controls those steps itself. A classic example is an oil company that owns wells and pipelines at one end and storage terminals and
Vertical integration is when one company owns or controls several stages of making and selling a product, from raw materials to retail.