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2 ITEM

1, White Out
2, Cola soda
3, The light bulb
4, the radio

A) people all over the world have worked really hard to help humanity progress in diferent fields such as science andtechnology . there are numerous great minds of scientist and inventors who have contributed to solving a lot of problems for humankind. however, there are inventors and inventions that have also helpedpeople, but that have never appeared in scientific publications. Some of these inventions are everyday items, such as the light bulb , the popular white out, the radio and even soda drinks.


B)light bulbs, for instance, are everywhere in houses and offices. Thomas alva edison worked for many years with electricity to improve the quality of the light bulbs which could last up to thirteenhours. Edison also worked on reliable electric ligting system to help with the supply of electricity in neighborhoods and cities


c) ANOTHER COMMON ITEM in houses and offices is the popular liquidpaper or wite-out. A secretary named bette nesmith invented it in 1956. she used a mixture of white tempera paint that she had at home.
She used her formula to correct her typing mistakes in heroffice and soon many of her co-workes asked her for the magical liquid. she patented her formula and called it liquid paper

D) A croatian immigrant named Nikola Tesla patented the radio in theunited states in 1943. Basically, the radio has the capacity to transmit electromagnetic waves in the form of music, news and other data invisibly through air. Many other appliances such astelephones, remote control toys and microwave ovens use waves to work properly.

E) In may 1886, Dr John S. Pemberton wrote a formula for a headache remedy which he at firts called Pembertib's frenchwine coca. Pemberton thought his drink did not have the healing properties he wnvisioned, so later he sold his drink to a group of bussinessmen for them to sell as a drink to quench peoples