How cold was the ice age? Researchers now know
A University of Arizona-led team has nailed down the temperature of the last ice age—the Last Glacial Maximum of 20,000 years ago—to about 46 degrees Fahrenheit (7.8 C).
A University of Arizona-led team has nailed down the temperature of the last ice age—the Last Glacial Maximum of 20,000 years ago—to about 46 degrees Fahrenheit (7.8 C).
Earth Sciences
Aug 26, 2020
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In a world first, US scientists on Thursday piloted a camera-equipped ocean drone that looks like a robotic surfboard into a Category 4 hurricane barreling across the Atlantic Ocean.
Earth Sciences
Oct 1, 2021
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A solar storm forecast for Thursday is expected to give skygazers in 17 American states a chance to glimpse the Northern Lights, the colorful sky show that happens when solar wind hits the atmosphere.
Space Exploration
Jul 9, 2023
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Climate change scientists don't like to use the term "prediction." Rather, they're making "projections" about the future of the planet as sea levels rise, wildfires sweep the West and hurricanes become more ferocious.
Environment
Sep 10, 2021
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The science of weather forecasting falls to public scrutiny every single day. When the forecast is correct, we rarely comment, but we are often quick to complain when the forecast is wrong. Are we ever likely to achieve a ...
Earth Sciences
Aug 23, 2018
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(Phys.org) —In 2 billion years' time, life on Earth will be confined to pockets of liquid water deep underground, according to PhD astrobiologist Jack O'Malley James of the University of St Andrews. The new research also ...
Earth Sciences
Jul 2, 2013
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Scientists working on the next frontier of weather forecasting are hoping that weather conditions 3-to-4 weeks out will soon be as readily available as seven-day forecasts. Having this type of weather information—called ...
Environment
Dec 7, 2019
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Scientists of the Intelligent Logistics Centre at St Petersburg University have developed a new Case-Based Rate Reasoning (CBRR) model for predicting the dynamics of epidemics. Using this method, the researchers are preparing ...
Mathematics
Dec 9, 2020
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Forecasting elections is a high-stakes problem. Politicians and voters alike are often desperate to know the outcome of a close race, but providing them with incomplete or inaccurate predictions can be misleading. And election ...
Mathematics
Oct 28, 2020
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11
Temperatures in Morocco have for the first time on record topped 50 degrees Celsius (120 Fahrenheit), the North African country's meteorological service said Sunday amid a scorching heat wave.
Environment
Aug 13, 2023
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Forecastle refers to the upper deck of a sailing ship forward of the foremast, or the forward part of a ship with the sailors' living quarters. Related to the latter meaning is the phrase "before the mast" which denotes anything related to ordinary sailors, as opposed to a ship's officers.
In medieval shipbuilding, a ship of war was usually equipped with a tall, multi-deck castle-like structure in the bow of the ship. It served as a platform for archers to shoot down on enemy ships, or as a defensive stronghold if the ship were boarded. A similar but usually much larger structure, called the aftcastle, was at the aft end of the ship, often stretching all the way from the main mast to the stern.
Having such tall upper works on the ship was detrimental to sailing performance. As cannons were introduced and gunfire replaced boarding as the primary means of naval combat during the 16th century, the medieval forecastle was no longer needed, and later ships such as the galleon had only a low, one-deck high forecastle.
In addition to crew's quarters, the forecastle may contain essential machinery such as the anchor windlass. On many modern US Naval ships, such as aircraft carriers, the forecastle is the location where boatswain will display their fancy knotwork such as coxcombing.
Some sailing ships and many modern non-sail ships have no forecastle as such at all but the name is still used to indicate the foremost part of the upper deck – although often called the foredeck – and for any crews quarters in the bow of the ship, even if below the main deck.
This text uses material from Wikipedia, licensed under CC BY-SA