Jellyfish

Typically, medusozoan cnidarians have a pelagic, predatory jellyfish stage in their life cycle; staurozoans are the exceptions.

About

Jellyfish are not a clade, as they include most of the Medusozoa, barring some of the Hydrozoa. The medusozoan groups included by authorities are indicated on the following phylogenetic tree by the presence of citations. Names of included jellyfish, in English where possible, are shown in boldface; the presence of a named and cited example indicates that at least that species within its group has been called a jellyfish.

Species

There are over 200 species of Scyphozoa, about 50 species of Staurozoa, about 20 species of Cubozoa, and the Hydrozoa includes about 1000–1500 species that produce medusae, but many more species that do not.

More Data

Since jellyfish have no hard parts, fossils are rare. The oldest conulariid scyphozoans appeared between 635 and 577 mya in the Neoproterozoic of the Lantian Formation in China; others are found in the youngest Ediacaran rocks of the Tamengo Formation of Brazil, c. 505 mya, through to the Triassic. Cubozoans and hydrozoans appeared in the Cambrian of the Marjum Formation in Utah, USA, c. 540 mya.

Neon

Neon is a noble gas. It is chemical element 10 on the periodic table. Its symbol is Ne.

About

Neon is a colorless, odorless, inert monatomic gas under standard conditions, with about two-thirds the density of air. Neon is the second lightest inert gas. Neon has three stable isotopes: 20Ne (90.48%), 21Ne (0.27%) and 22Ne (9.25%).

Applications

Neon gas is used in gas discharge lamps. When electricity goes through the neon, it lights up red. Due to this quality, it is used in signs. Similar signs use other gases to make other colors, but they are also often called "neon signs".

More Data

The word "neon" comes from the Greek word meaning "new". It was discovered by William Ramsay and Morris W. Travers in 1898. Neon does not react with other elements, so it is found by itself. There is not much neon in the air, and it is clear, so we do not see it.

Skate
boarding

Skateboarding is an action sport which involves riding and performing tricks using a skateboard.

About

Skateboarding is as well as a recreational activity, an art form, a entertainment industry job, and a method of transportation. Skateboarding has been shaped and influenced by many skateboarders throughout the years

Trick Skating

With the evolution of skateparks and ramp skating, the skateboard began to change. Early skate tricks had consisted mainly of two-dimensional freestyle manoeuvres like riding on only two wheels ("wheelie" or "manual"), spinning only on the back wheels (a "pivot"), high jumping over a bar and landing on the board again, also known as a "hippie jump", long jumping from one board to another.

More Data

A 2009 report found that the skateboarding market is worth an estimated $4.8 billion in annual revenue with 11.08 million active skateboarders in the world. In 2016, it was announced that skateboarding will be represented at the 2020 Summer Olympics in Tokyo.

Road
Lights

A road trip is a long distance journey on the road. Typically, road trips are long distances traveled by automobile.

About

The world's first recorded long distance road trip by automobile took place in Germany in August 1888 when Bertha Benz, the wife of Karl Benz, the inventor of the first patented motor car (the Benz Patent-Motorwagen), travelled from Mannheim to Pforzheim (a distance of 106 km (66 mi)).

Recreational Purpose

Many people may go on road trips for recreational purpose (e.g. sightseeing or to reach a desired location, typically during a vacation period (e.g., in the US, driving to Disneyland from Oregon)). Other motivations for long distance travel by automobile include visitation of relatives, who may live far away, or relocation of one's permanent living space.

More Data

Generally, while road trips can occur in any mass of land, large masses of land are most common for road trips. The most popular locations for road trips include Canada, Mainland U.S., and Central Europe.

Umbrella

Is a folding canopy supported by wooden or metal ribs, which is usually mounted on a wooden, metal, or plastic pole.

About

It is designed to protect a person against rain or sunlight. Umbrellas and parasols are primarily hand-held portable devices sized for personal use. The largest hand-portable umbrellas are golf umbrellas. Umbrellas are now a consumer product with a large global market.

Categories

Umbrellas can be divided into two categories: fully collapsible umbrellas, in which the metal pole supporting the canopy retracts, making the umbrella small enough to fit in a handbag; and non-collapsible umbrellas, in which the support pole cannot retract and only the canopy can be collapsed.

More Data

Umbrellas continue to be actively developed. In the US, so many umbrella-related patents are being filed that the U.S. Patent Office employs four full-time examiners to assess them. As of 2008, the office registered 3000 active patents on umbrella-related inventions.