The Basics of a Bicycle


When assembling a bicycle, the main components are its frame, seat, and wheels. The seat posts are generally made of steel or aluminum alloy and are bolted into place. The saddle, a piece of molded padding or nylon, sits atop the head tube. It also provides the bicycle with some rigidity. The bicycle’s pedal mechanism is attached to the frame by a crankset, which is made up of a chain ring, bottom bracket assembly, and axle and cup. The crankset is the heart of a bicycle and transfers power from the pedals to the chain.

Bicycles have undergone many changes over the centuries, from the initial bicycle design to the current design. Today’s bicycles feature adjustable handlebars and handbrakes, and there are special seats for women and men. Manufacturers also use lighter materials, such as carbon fiber and aluminum, to create bicycles that are more durable. And while most bicycles were originally made of wood, modern-day ones are more advanced. Bicycles can be as light as four pounds!

The 1860s was an important decade for bicycle design. Major innovations in the design of bicycles include ball-bearing hubs, metal-spoked wheels, and chain-driven differential gears. One of the most notable bicycles of the time, the Starley Rover, was the first practical bicycle, with its large front wheel and center pivot steering. Its widespread popularity led to the creation of bicycle clubs and competitive races. Thomas Stevens famously rode a high-wheeler bicycle around the world in 1884.

The triangular shape of the frame of a bicycle was chosen to distribute the cyclist’s weight evenly between the front and back wheels. Because the cyclist leans forward to hold the handlebars, the triangular frame distributes his weight evenly across the front and back wheels. Otherwise, the cyclist would end up head-over-heels or tipping backward. In fact, all weight on the back wheel would cause the cyclist to fall, while his body weight would be leaning forward as he rode.

Bicycle design has also improved tremendously in the last century. The bicycle is the most efficient means of transportation by human beings. Bicycle pedals transmit nearly all of the energy to the wheels, converting ninety percent of the energy into kinetic energy. By comparison, a car would only use 5% of the energy it receives from a car engine. Hence, the bicycle is an environmentally-friendly alternative to driving. And, as it is a renewable source of energy, it has a low environmental impact.

A bicyclist has to observe the laws on bicycling. While riding a bicycle, he must be observant about his rights. The law requires him to wear a safety vest when riding. It is also important for him to understand that the laws regarding bicycle riding differ from those for driving vehicles. Bicycle riders should check the parts of their bicycle and ensure that they are functioning properly. And if a bicyclist is cited, he should immediately dismount and exit the bicycle.

GOES-R – The New Satellite For Weather Remote Sensing


The GOES R system will operate for fourteen years and will continue providing remote sensing data to direct users and central processing centers. The mission will improve latency and cover the entire hemisphere with complete coverage, including periods of eclipse at the vernal equinox. The consolidated architecture will be capable of growing to meet the increasing performance demands. The primary payload instruments on GOES are the SEM and Imager. Here are a few things you should know about these instruments.

GOES satellites remain in geostationary orbit and continually view the earth. They track the weather, and detect atmospheric triggers to monitor severe weather. GOES satellite imagery helps meteorologists calculate rainfall during thunderstorms, snowfall accumulations, and overall snow cover. GOES satellites can even help issue winter storm warnings. They also detect ice fields and map their movements. To get a better view of the weather, GOES satellites scan the Earth every day, which makes them invaluable to forecasters.

The new satellite will also provide higher resolution and three times more data than its predecessors. GOES-R will provide three times more information and be five times faster than the current GOES satellites. As a result, the GOES-R will be able to provide better weather information and help predict severe weather. In addition, GOES-R will be able to monitor volcanic ash clouds, dangerous fog, and changing hurricane intensities.

GOES satellites are an essential part of the weather monitoring system. GOES satellites have been a mainstay of U.S. weather monitoring since 1974. NASA oversees the design, procurement, and manufacture of the GOES satellites. The agency is responsible for delivering space weather and terrestrial data through the SPEDAS software. The data is collected and used for various purposes. The data is also used for many research projects. The latest GOES satellites provide high-resolution imagery for the most accurate forecasts.

GOES satellites orbit the Earth in a geosynchronous orbit. This position is considered the “sweet spot” of Earth because it means that GOES satellites are never in motion with respect to the ground. This allows them to continuously monitor Earth’s weather from 35,800 km / 22,300 miles above the equator. The satellites’ full-disc view of Earth allows them to collect information on global weather patterns every 30 seconds.

GOES-16 satellite was launched on a Lockheed Martin Atlas V 541 expendable launch vehicle in November 2016. The system module and the propulsion core module were successfully mated in September 2014. The spacecraft completed all environmental and mechanical tests before it was shipped to the Astrotech Space Operations facility in Titusville, Florida. The mission is expected to operate for at least five years. Its design and operation began in 1999 and is now known as GOES-16.