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Nuclear winter is a severe and prolonged global climatic cooling effect that is hypothesized [1] [2] to occur after widespread firestorms following a large-scale nuclear war. [3] The hypothesis is based on the fact that such fires can inject soot into the stratosphere, where it can block some direct sunlight from reaching the surface of the Earth.
In the history of artificial intelligence, an AI winter is a period of reduced funding and interest in artificial intelligence research. [1] The field has experienced several hype cycles , followed by disappointment and criticism, followed by funding cuts, followed by renewed interest years or even decades later.
Media in category "Winter" This category contains only the following file. Deuil charles 1.jpeg 4,912 × 3,264; 3.59 MB
The conversion of sulfur dioxide to sulfuric acid, which condenses rapidly in the stratosphere to form fine sulfate aerosols. A volcanic winter is a reduction in global temperatures caused by droplets of sulfuric acid obscuring the Sun and raising Earth's albedo (increasing the reflection of solar radiation) after a large, sulfur-rich, particularly explosive volcanic eruption.
An impact winter is a hypothesized period of prolonged cold weather due to the impact of a large asteroid or comet on the Earth's surface. If an asteroid were to strike land or a shallow body of water, it would eject an enormous amount of dust, ash, and other material into the atmosphere , blocking the radiation from the Sun .
Martin Winter (born 7 August 1965) is a German chemist and materials scientist from Osnabrück. His research in the field of electrochemical energy storage and conversion focuses on the development of new materials, components and cell designs for batteries and supercapacitors , lithium ion batteries and lithium metal batteries .
Winter is the coldest and darkest season of the year in temperate and polar climates. It occurs after autumn and before spring. The tilt of Earth's axis causes seasons; winter occurs when a hemisphere is oriented away from the Sun. Different cultures define different dates as the start of winter, and some use a definition based on weather.
Alex Robinson (5 May 2020), "Meet Winter, the Llama Who Might Just Save Us All From COVID-19", Modern Farmer "Meet Winter, the 4-year-old llama whose blood might hold a treatment for COVID-19". Canadian Broadcasting Corporation. 11 May 2020. "COVID-19 Researchers Study Llama's Special Antibodies". Morning Edition. NPR. 19 May 2020.