Fireworks light up the sky during celebrations; they give a wonderful show of color and shapes that fascinate the eyes and minds of many. The beauty of the display often leads many to wonder where the colors come from. The short answer is that they are the result of the burning of metals placed in these explosives. These metals are elements of the periodic table that burn at different temperatures and give off colors at their melting points.
Red displays come from Lithium, Rubidium and Strontium. These metals give different intensities in color and some even play other roles. Lithium and Rubidium are metals in group one of the periodic table. Lithium gives a medium red color and is most useful, for this purpose in its carbonate form. Rubidium on the other hand gives a deep red/ violet-red flame and is also used to oxidize the mixtures in these explosives; without oxidation, they will not burn properly. Strontium burns with an intense red but it also has the job of stabilizing the elements used to make the fireworks.
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1 to 2 years: With each step your baby becomes more independent and confident. Little ones at this age spend every waking hour exploring and experimenting. For those still a bit unsteady walking, educational toys that promote mobility such as a walker or push car are great choices. Pushcarts and wagons are a great way for children to tote things around- another favorite activity at this age. Educational toys including soft plush toys and dolls remain favorites at this age. Children often become very attached to one or two and use them in creative play. Toddlers can find many ways to make loud sounds. Musical instruments like drums, maracas, and tambourines are educational toys that will help them learn to appreciate music while they make noise. Inset puzzles require toddlers to lift out pieces and find the right places to put them back. These first puzzles improve problem skills and fine tune motor skills. Puzzles are educational toys that your children will play with over and over again.
Some of the popular metals for fireworks include: Lithium, Rubidium, Strontium, Copper, Aluminium, Magnesium, Beryllium, Antimony, Titanium and many others. Burning these gives a wide variety of colors and makers of these products combine them based on the type of display they want. Below are specific examples of the different colors given by different elements.
Though it is a constitutional obligation, the non-availability of funds and vested administrative setup have led to the mushrooming of universities, fake campuses, private enterprises and numerous makeshift centers of education as also fly-by-air foreign campuses. It has proved to be a great financial endeavor with hardly any risk involved because it does not come under VAT or any other financial constraints. India has by now more institutions of such type than colleges, an excellent opportunity to rope in knowledge seeking youth and those who desire to fly off to greener pastures.