Anatomy of an Artichoke. Artichokes are such interesting things. We consider the artichoke (Cynara cardunculus var. scolymus) a vegetable, even though itâs a thistle and more specifically, the part that we eat (and that most people ever see in the store) is actually a flower bud â and sometimes called a head.natomy of an Artichoke. Artichokes are such interesting things. We consider the artichoke (Cynara cardunculus var. scolymus) a vegetable, even though itâs a thistle and more specifically, the part that we eat (and that most people ever see in the store) is actually a flower bud â and sometimes called a head.
The watt (pronounced /?w?t/; symbol: W) is a derived unit of power in the International System of Units (SI), named after the Scottish engineer James Watt (1736â1819). The unit measures the rate of energy conversion. It is defined as one joule per second.
kWh, Energy. The watt-hour (symbol WÂ·h) is a unit of energy. It is commonly used in the form of the kilowatt-hour, which is 1,000 watt-hours. It is not an SI unit because it contains the non-SI unit hour. The SI unit of energy is the joule (J), equal to one watt-second.