Sunday, October 28, 2007

Aggregate fruit

An aggregate fruit, or etaerio, develops from a flower with numerous easy pistils. An example is the raspberry, whose simple fruits are termed drupelets since each is like a small drupe emotionally involved to the receptacle. In some bramble fruits (such as blackberry) the vessel is elongated and part of the ripe fruit, making the blackberry an aggregate-accessory fruit. The strawberry is also an aggregate-accessory fruit, only one in which the seeds are enclosed in achenes. In all these examples, the fruit develops from a single flower with several pistils.

Sunday, October 21, 2007

Fruit development

A fruit is a grown ovary. After the ovule in an ovary is fertilized in a method known as pollination, the ovary begins to ripen. The ovule develops into a seed and the ovary wall pericarp may become thickset (as in berries or drupes), or form a hard outer covering (as in nuts). In a few cases, the sepals, petals and/or stamens and style of the flower fall off. Fruit growth continues until the seeds have matured. With some multiseeded fruits the extent to which the flesh develops is comparative to the number of fertilized ovules.

The wall of the fruit, developed from the ovary wall of the flower, is known as the pericarp. The pericarp is regularly differentiated into two or three distinct layers called the exocarp (outer layer - also called epicarp), mesocarp (middle layer), and endocarp (inner layer). In some fruits, specially simple fruits derived from an inferior ovary, other parts of the flower (such as the floral tube, including the petals, sepals, and stamens), fuse with the ovary and ripen with it. When such other floral parts are an important part of the fruit, it is called an accessory fruit. Since other parts of the flower may donate to the structure of the fruit, it is important to study flower structure to understand how a particular fruit forms.

Monday, October 15, 2007

Botanic fruit and culinary fruit

Many foods are botanically fruit but are treat as vegetables in cooking. These contain cucurbits (e.g., squash, pumpkin, and cucumber), tomato, peas, beans, corn, eggplant, and sweet pepper, spices, such as allspice and chillies. Occasionally, however rarely, a culinary "fruit" will not be a true fruit in the botanical sense. For example, rhubarb may be measured a fruit, though only the astringent petiole is edible. In the commercial world, European Union rules define carrot as a fruit for the purposes of measure the proportion of "fruit" enclosed in carrot jam. In the culinary sense, a fruit is usually any sweet tasting plant produce associated with seed, a vegetable is any savoury or a smaller amount sweet plant product, and a nut any hard, oily, and shelled plant product.

Although a nut is a type of fruit, it is also a popular term for safe to eat seeds, such as peanuts (which are actually a legume) and pistachios. Technically, a cereal grain is a fruit term a caryopsis. However, the fruit wall is especially thin and fused to the seed coat so almost all of the safe to eat grain is actually a seed. Therefore, cereal grains, such as corn, wheat and rice are better measured edible seeds, although some references list them as fruits. Edible gymnosperms seeds are often dishonestly given fruit names, e.g. pine nuts, ginkgo nuts, and juniper berries.

Monday, October 8, 2007

Fruits

The term fruits has different meanings depending on circumstance. In botany, a fruit is the grown ovary—together with seeds—of a flowering plant. In many varieties, the fruit incorporates the grown ovary and surrounding tissues. Fruits are the means by which peak plants disseminate seeds. when discussing about fruit as food, the term usually refers to those plant fruits that are sweet and fleshy, examples of which include plums, apples and oranges. However, a great many common vegetables, as well as nuts and grains, are the fruit of the plant type they come from. The term "fruit" has also been incorrectly applied to the seed-containing female cones of many conifers.

Tuesday, October 2, 2007

Pace Car

100 A pace car has been used to start the Indianapolis 500 since 1911. The primary pace car was a Stoddard-Dayton driven by Carl G Fisher. Other car and motorbike races have also used pace cars.

The purpose of a pace car is to help provide a prepared running start to the race. The racecars follow the pace car around the track, maintaining their assigned limit positions.

The exact details can vary, but typically, there is one "parade lap" at a relatively low speed. This is followed by a much faster lap that directly leads to the formal start of the race, as the pace car turns off the track into the pit area.

Many years, the driver of the pace car is someone connected to car racing or the automotive industry, such as the dealer that provided the car, an executive of a US automaker, or a retired racecar driver. However, especially in recent years, the driver may be a celebrity; recently comedian and talk show host Jay Leno, and actors Anthony Edwards have driven the Indy pace car. Colin Powell was chosen to drive the pace car for the 2005 event.