Lewis Latimer was a black inventor. He improved upon the light bulb making it electric. Those light bulbs were then used in street lights.
No, black people are not invisible in the dark; no more than a white person is invisible in the light. If one cannot see someone who is black in the dark, it is more likely because human eyes are not made to see in the dark, so it would be hard to see anyone of any race.
Madam C. J. WalkerMadam C. J. WalkerActually in 1914 Madame Walker became the first black millionaire and of course also the first black female millionaire. The first black female billionaire has come about more recent in history her name is Sheila Crump Johnson. She is also the first Black woman to own three professional sports franchises. She is the President and CEO of the company that she founded Salamander Hospitality which is a Hotel, Resort, and Restaurant management firm. Ms. Johnson is also the ex wife of Bob Johnson with whom she founded BET. Other black female billionaires include Oprah Winfrey also the richest self made woman in America and Taysha Smith-Valez who at 27 is also the youngest self made billionaire.
She was the first American woman millionaire. She was a Black woman. She made her money by inventing and then marketing hair care products for Black women. She pioneered the Avon Calling, door to door sales with independent woman representatives.
because she was BLACK
The black man through out time has stuck through out the harsh realities of man kind and has also still had the time to create fried chicken and they are also known for creating a whole new way to use a street corners wether its to sell drugs or to put one of there "hookers" on the corner. You might think those things aren't a big deal but the black man has made a real big impact in the world.
This could refer to the colors that are made to use with a black light. Colors that glow under a black light.
S h i t
no
coal is made black so that it emits light
Black colored light is not a scientifically possible phenomenon. Light is made up of different colors in the visible spectrum, and black is the absence of light. Therefore, there cannot be black colored light.
Franz von Drais, a German inventor, is credited with being the first to introduce street lights in 1817. However, the modern electric street light was invented by Thomas Edison in the late 19th century.
Black is just a "color" made by a surface chemical absorbing all light, therefore meaning that if there is no light, objects will look black.
The color of light is made by adding all of the colors of parts of light, called wavelengths, together. Color is made by removing certain wavelengths of the light, and white is made by adding them all together. Black is the absence of light, so instead of adding a color of light to red, you will subtract the red light and leave no light.
Yes. Black is made of mixing all colors together so it absorbs all colors. On the other hand all color are in white light that's why it reflects light.
Black is a color that results from the complete absence of light or the absorption of all light wavelengths. When an object absorbs all colors of light and reflects none, the object appears black to our eyes.
Black is not a color in the traditional sense, as it is the absence of light. When all colors are combined and no light is reflected, we perceive it as black. Pigments like carbon black or dyes can also create the color black by absorbing most light.
1984.