Accessory pigments include chlorophyll b and a group of pigments called carotenoids. They do not participate directly in photosynthetic reactions but are able to pass their energy to chlorophyll a. Visible Light is one small part of the electromagnetic spectrum.Electromagnetic Spectrum is a set of types of radiation. Radiation is energy that travels and spreads out as it goes.hey do not participate directly in photosynthetic reactions but are able to pass their energy to chlorophyll a. Visible Light is one small part of the electromagnetic spectrum. Electromagnetic Spectrum is a set of types of radiation. Radiation is energy that travels and spreads out as it goes.
His invention: a dome-shaped grill with a lid to protect food from the elements, while sealing in that only-from-the-grill barbecue flavor. George Stephen cut a buoy in half, added some air vents and legs and, in the process, invented the grill that would spark a backyard revolution. The man behind the kettle, George Stephen. Grill master, inventor, and father of 12.
[Photograph: Weber] If you want a family-sized charcoal grill for less than $200 that can cook anything and will last forever, the Weber Original 22-Inch Kettle Grill is it. When George Stephen, Sr. introduced the Weber Kettle in 1952, he set America's backyards on fire. Today's design is not far from the original, and it is by far the most popular backyard grill in the world. For searing, Weber Kettles put most backyard gas grills to shame.