Light at pace a of 299 792 458 m/s is the fastest which we human kind knows. How do they measure stellar objects in terms of light years, say a star is at a distance of 100 light years. Since, a light beam takes 100 years to reach earth observatory.
You can find plenty of sites answering the question.
An example is: http://www.talkorigins.org/faqs/astronomy/distance.html
There are lot many computer aided model packages like HYDRUS, MODFLOW, FE flow etc., to predict and estimate subsurface contaminant movement. However, these models cannot be applied for volatile...
01 February 2018 4,623 3 View
What is the difference between SCI and other journal indexing? If a journal contains good research material and if cited by numerous researchers, does different journal indexing matters?
07 August 2017 2,349 1 View
Which is the most toughest salt to remove from water. And what is the energy required to break it apart from the solution ? What is the general equation that can be used to calculate the energy...
07 August 2017 2,903 5 View
In modelling air pollutant dispersion, Gaussian plume dispersion equation is applied. According to this model equation, plume rise occurs immediately at the exit of industrial stack due the exit...
07 August 2017 4,632 2 View
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How to assign coded response for application of RSM using Box Behnken design for laboratory experiments. Which is the best software to plot RSM?
07 August 2017 2,652 17 View
I have plotted concentration of five chemical species versus time of reaction for zero-first-second order reactions. The slope (m) values obtained are as follows: Zero order : -50 (Plot of...
07 August 2017 10,068 5 View
What happens when salt solution is influenced by strong magnetic field.
07 August 2017 1,523 1 View
I need a link to download Fugitive Dust model (FDM). Kindly provide your valuable suggestions. Thank you.
11 December 2016 8,213 0 View
Can energy required to remove dissolved salts be calculated using equations? What is the energy required to remove unit concentrations of above said salts?
09 October 2016 7,299 3 View
I used eye tracking to examine how participants from two different populations (A and B) react to an image. Participants in population A exhibit larger pupil sizes over time, but they also have...
10 August 2024 3,229 0 View
Census data seems only to reach the year 2011, but there might be estimates somewhere that I cannot find? I am looking not only for the largest cities but also towns etc. Thanks!
10 August 2024 857 4 View
I want to know more about REE deposits.
03 August 2024 6,930 2 View
Why is the cycling of matter important to life on Earth and movement of matter through an ecosystem different than the movement of energy through an ecosystem?
03 August 2024 5,061 3 View
Why does the flow of energy through the biosphere depend on the cycling of nutrients and matter and energy flow across the earth's subsystem?
03 August 2024 6,412 0 View
How does the atmosphere affect the flow of matter and energy on Earth and flow of energy in the biosphere related to the flow of food through a food chain?
02 August 2024 9,644 0 View
How do energy flow and matter change in Earth's interior and geosphere subsystem affect the flow of matter and energy on Earth?
02 August 2024 9,144 0 View
How do matter and energy flow during the interaction of Earth's subsystems and hydrosphere subsystem affect the flow of matter and energy?
02 August 2024 7,579 2 View
How does energy flow through Earth's systems and how does that affect climate and biosphere affect the flow of matter and energy on Earth?
02 August 2024 2,699 2 View
Hi everyone, Recently I have been conducting Dynamic Light scattering experiments in a micellar solution at 5 and gel at 37 degrees of Celsius with latex particles of diameter 190-500 nm. While...
01 August 2024 1,168 4 View