Category Archives: Science

Sir Isaac Netwotn’s three laws of motion. Three states of matter (solid, liquid, gas). We live on the third rock from the sun. Our metric system of measurement uses metre, litre, and gram. Morse code is a reliable system as the signal is made up of only three parts – a long ‘on’, the dash; a short ‘on’, the dot; and an ‘off’ signal. Do you know what SOS means in Morse code?

THREE CHEERS FOR THE RED, GREEN, & BLUE!

Red, green, and blue are the colors that the first astronauts to Mars might plant there. The three colors were chosen recently by the Mars Society for its first Martian flag. The Mars Society is a group of scientists and laypeople whose goal is promoting the exploration and settlement of the Red Planet. Continue reading THREE CHEERS FOR THE RED, GREEN, & BLUE!

Differentiating wavelengths

Normal humans have three different types of cones with photo-pigments that sense three different portions of the spectrum. Each cone is tuned to perceive mostly either Long wavelengths (reddish), Middle wavelengths (greenish), or Short wavelengths (bluish), referred to as L-, M-, and S- cones. Continue reading Differentiating wavelengths

Color Wheel

Primary colors

Primary colors

 

PRIMARY COLORS – Red, yellow and blue

 

Secondary colors

Secondary colors

 

SECONDARY COLORS – Green, orange and purple – from mixing primary colors

 

Tertiary colors

Tertiary colors

 

TERTIARY COLORS – Yellow-orange, red-orange, red-purple, blue-purple, blue-green and yellow-green – from mixing secondary colors.

 

Continue reading Color Wheel