Physics Essays

Bio-ethanol fuel has been used through these times and produced in many places specifically in Brazil and United States which contributes to the 87.1% bio-ethanol production in the world. Besides from being eco-friendly, inexpensive and less toxic, it is more preferred as a fuel for the materials used are the …

Nepalese like load shedding as there is no other options than liking it and this has been a familiar affair since several years. It is not due to lack of available resources as there are numerous ever flowing rivers that can generate huge hydro power to lighten up the whole …

Car pooling You can car pool with your neighbours or friends to reduce smoke that comes out from the vehicles. Carbon monoxide that release from the vehicles can cause health problems like coughing Use public transport Taking a bus or train to work, school or any other activity has a …

Theory / Definitions 1. Optical (or transparent) medium: A medium that allows the passage of light through I, just like glass. 2. Index of refraction: The ratio of the speed of light in vacuum over the speed of light in the transparent medium. It has a density greater than 1 …

Outdoor components of a residential air-source heat pump A heat pump is a machine or device that transfers thermal energy from one location, called the “source,” which is at a lower temperature, to another location called the “sink” or “heat sink”, which is at a higher temperature. Thus, heat pumps …

Abstract- In the flame test lab, the flame test was performed to excite the electrons in the samples and observe the color of the flame. The flame emits a color because each element has an exactly defined emission spectrum, which one can use to identify them. For example, NaCl was …

One of the great issues facing world in the 21st century is how best to obtain the energy for supporting operations: heat and light, transportation, production and delivery of goods and services. Fossil fuel supplies nearly 90 percent of the energy, according to the U.S. Department of Energy. In contrast, …

Water is an odorless, colorless, tasteless chemical compound that makes up well more than half of the human body. In addition to being prominent in the make-up of the human body, it also covers all but approximately 30% of the Earth’s surface, and can be found naturally in all three …

Animals can help the environment a lot, we just don’t notice what they’re doing for us. Have you ever seen animals picking up trash or dropping seeds on your head? They aren’t doing this on purpose and if they drop seeds and they land on the ground, don’t mess with …

The delegates from nation states all over the world convened in Rio de Janeiro, Brazil on June 2012, for a conference on sustainable development held by the United Nations. There they debated the path to a sustainable future, made plans to solve the global climate change crisis and vowed to …