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.
Even after half-a-century of Indian Independence, the fate of education, educators and students has hardly improved. The apathy of the power that be, including a large section of society, has not changed when it comes to human resource development and education. Even now there are more than four crore educated unemployed.
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3 to 6 Months: During this stage your baby will gain better head control and have better movement of arms and legs. They generally grip onto anything they can get their hands on and put it directly into their mouth. Educational toys like rattles promote motor development and provide sensory stimulation. Since everything ends up in the mouth, educational toys that are chewable or soft plush are favorites. Babies need to experience different textures so vary the materials educational toys are made of. Activity centers provide lots of stimulation at this age. These educational toys normally have lots of buttons that produce sounds, lights, and give a variety of textures to explore. Hand-eye coordination will improve as babies explore the activity center. Parents are often on the move more with babies at this age. Activity bars that fit across a stroller, car seat, or bouncy chair that have dangling, squeaky toys and mirrors keep baby stimulated while on the move. Motor skills develop as baby reaches, hits, pulls, and kicks at the accessories on these educational toys.
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.
Newborn to 3 Months: Babies cannot do much at this stage but their senses are eager for stimulation. Childrens educational toys with high-contrast patterns and bright colors will capture little ones attention. Babies can see color from birth but have difficulty distinguishing between similar tones. Educational toys designed with bright and distinctly different colors like red, green, black and white help babies differentiate shapes and patterns. Babies spend a good deal of time on their backs and sides at this age making colorful mobiles that play music a great educational toy choice. Babies are fascinated by their reflection in safety mirrors. They are not able to recognize themselves but the activity is great visual stimulation. Baby gyms are excellent educational toys because of the variety of stimulation they offer. Baby gyms have bright colors, a variety of attachments with different shapes, textures, and sounds. Most gyms now play music and have lights as well. These educational toy gyms require baby to pull, kick, or bat something to set off the stimulus helping to develop motor skills.