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The article presents advice for choosing a Hydrogen-alpha filter, which allow novice astronomers to directly view the Sun and highlights the sun's chromosphere, and reviews filters from Meade Instruments Corp., Daystar Filters LLC,...
Solutions under zero initial conditions, varying the step amplitude, yield a functional form with an exponential parameter. Consequently, estimating the parameters from the shape of the response leads to the problem of experimental identification of a nonlinear-in-parameter model, typically tackled by ...
A driver might be found to have a level of 0.15, for example, while the legal limit is 0.08. To comprehend how we can gain access to such precise numbers, we have to ask ourselves: how does a breathalyzer work? What do those figures mean? And how do police officers find out if ...
The different results achieved by each class can be explained either by the mechanism of action of the included actives for the concentrations of their use. Although this last information is not available it is expected to find a higher concentration of actives in medicines than in cosmetics. In...
A driver might be found to have a level of 0.15, for example, while the legal limit is 0.08. To comprehend how we can gain access to such precise numbers, we have to ask ourselves: how does a breathalyzer work? What do those figures mean? And how do police officers find out if ...
These hardened facilities house command centers, ammunition depots and research labs that are either of strategic importance or vital to waging war. Because they are underground, they are hard to find and extremely difficult to strike. The U.S. military has developed several different weapons to ...
● The future energy landscape is evolving rapidly. The increasing adoption of renewable energy sources and advancements in other low-carbon technologies create a dynamic market where fusion will need to prove its value [5, 10]. Fusion might need to find niche applications, such as providing base...
In open-loop systems, seawater is used to wash out SOx from the exhaust. The contaminated wash water is then discharged to the sea with minimal or no treatment [Teuchies et al., 2020]. Pollutants thus enter the aquatic ecosystem and become a potential source of marine pollution. [Oikawa ...
In the worst nuclear winter scenarios, plants wouldn't receive enough sunlight for photosynthesis to take place.Chris Clor/Getty Images In Carl Sagan and Richard Turco's book "A Path Where No Man Thought," the two nuclear winter theorists propose six classes of nuclear winter, which provide...