While the sun is the best "grow light" ever invented, only part of the light that comes from the sun is used by plants for photosynthesis. The photosynthetically active radiation (PAR) contains the wavelengths between 400 and 700 nanometers, and falls just within the so-called visible spectrum (380-770nm). The total visible spectrum is perceived by us humans as white light, but with the aid of a prism, we see that the "white" light is actually separated into a spectrum of colors from violet to blue, to green, yellow, orange and red. Plants use the blue to red light as their energy source for photosynthesis.
A spear is a generic term for a shafted weapon, but a javelin is specifically designed to be thrown.
Is there a differance between lighting bug and firefly?
Rose K lens are designed specifically for people with keratoconus. They fit better over the coning of the cornea.
Lighting designers can make anywhere between $15,000 to $500,000 per show designed, depending on the size of the lighting rig, and if the designer actually designs the rig or not.
The difference between a Transistor and a Resistor is that a transistor is designed to amplify the electrical current, whereas a Resistor is designed to reduce the electrical current.
Actually there is no difference between lighting bugs and fireflys. People call the little beetles differently depending on the area of which people live.
What are some of the brands that carry green, energy saving home lighting fixtures?
SAP B1 is designed specifically for small to medium companies, while SAP R/3 is for large companies. The system architecture is quite different.
Cars are designed to be street legal.
Truly, there aren't diet plans designed specifically to be more effective for any certain gender. The only difference between a male and female diet would be the kinds and taste of the food items involved, not the way it is engineered.
Nothing new. The only difference between 4.3.4 and 4.3.3 is that 4.3.4 is an update specifically designed to try and stop jailbreaking. If your iDevice is already jailbroken, it would be advised that you do not upgrade your iOS to 4.3.4.
The difference between led hdtv and lcd hdtv is that the led uses led lighting instead of lcd lighting that's used in computers and cell phones. the lcd hdtv is the oldest model and the led is the newest. With the led the picture is clearer.