As its known how important are trees for our lives. However, such is not in the case of using electronic documents. You can use the PDF format for storing extensive data such as graphics, images, charts, tables or hyperlinks and much more. Portable Document Format is used for effective coordination between the physically distant people. In other words, you can store, transmit and exchange data with any other computer user using system with different configurations. There are chances of papers being spoiled with the passage of time. You may need to store the papers in the shelves and maintain those shelves or the store room with high security. PDF looks exactly the same as paper. That is why so many people will scan paper as PDF format, or write PDF e-book instead of publishing a book. Not only books, bills, invoices, job applications, contract, even government data may be saved in PDF format. The idea of having a paperless office may be shocking not to mention unrealistic.

However, unknowingly though it maybe, we have all become part of the process to reduce the amount of paper that is being used in office nowadays. By using documents to share information and email to transfer the information, we are transferring more and more data from paper to electronic documents. In this context, PDF files are proving to be the most popular standard for storing and managing this information. They offer perfect document fidelity, are secure, easy to share and it is very easy to repair PDF files if they do get corrupted. Take regular backups of your files and ensure that they are stored in multiple locations, even if there is any accident such as a fire, natural disaster such as earthquakes or if your office gets vandalized, you can stay rest assured that all your PDF files and the information contained in them will be safe. So its the revolution in the office world where the problem of storage of important documents and safeguarding them is almost over. No mor wastage of precious papers and better usage of manpower in other important works for buiding up a better environment.

The U.S. government spends billions each year subsidizing scientific research, and science and engineering graduate programs at U.S. Surrounded by technological marvels, from talking ATMs and telecommunications satellites to supermarket tomatoes that are genetically modified to retain their flavor, Americans must be pretty darn smart when it comes to science, huh? Well, guess again. The unsettling truth is that U.S. In 2018, the National Science Foundation found that 72 percent of poll respondents knew that the Earth revolved around the sun (which means 28 percent thought it was the other way around) and 68 percent incorrectly thought that all radioactivity was man-made. But for those of you who feel the desperate urge to change the subject when someone mentions the Higgs boson, massively parallel supercomputing or the escalating debate over whether dinosaurs had feathers, fear not. We're going to start you off easy, with the answers to 10 really basic science questions that everybody should know how to answer.

Why is the sky blue? How old is Earth? How does natural selection work? Will the sun ever stop shining? How do magnets work? What causes a rainbow? What is the theory of relativity? Why are bubbles round? What are clouds made of? Why does water evaporate at room temperature? 10: Why is the sky blue? Louis Armstrong crooned in his 1968 song "What a Wonderful World." And he probably did, given that his song is an ode to optimism. But we digress. The reason the sky appears blue is because of an effect called scattering. Sunlight has to pass through Earth's atmosphere, which is filled with gases and particles that act like the bumpers on a pinball machine, bouncing sunlight all over the place. But if you've ever held a prism in your hands, you know that sunlight actually is made up of a bunch of different colors, all of which have different wavelengths. Blue light has a relatively short wavelength, so it gets through the filter more easily than colors with longer wavelengths, and as a result are scattered more widely as they pass through the atmosphere.