Alternative Sources of Energy Good morning, ladies and gentlemen. I’d like to tell you something about the topic alternative sources of energy. Definition: First I want to give you a short definition about alternative sources of energy. Alternative energy is energy that is neither based on
= ELC1A01 Science fiction as a reflection on humanity Story planning sheet Aim: This story planning sheet is to help you plan your short story and make sure that you haven’t missed out anything important. You should submit it with your first draft for the Writing Requirement. Highlight the items below
Hong Kong Institute of Vocational Education (Tuen Mun) Engineering Discipline Department of Real Estate and Facilities Management Higher Diploma in Building Services Engineering Programme Code: EG114701 Preventing the water hammer in high rise building Industry-Based Student Project Final
Life on other planets
About 4.6 billions years ago, Earth started to form and about 3.8 billion years ago, life began on Earth as single celled organisms.
Life have alway existed and evolved from its origin to today. If life can form on Earth, then is there life on other planets? As scientists, astronomers and astrobiologists are in the search for life, current discoveries found that many planets could sustain life and that there are also signs of life on other planets, but as of right now, no life has been discovered.
Although there are currently no discovery of extraterrestrial life (life outside of Earth) on other planets, studies show that life may have previously and may currently exists on other planets.
To begin, as of right now the search for life still continues. According to a chemistry article, it states, “To date though, no evidence of life – ancient or otherwise – has been found (Nina, 2018).” To explain, as of right now no life has been found.
The closest galaxy to the Milky Way galaxy is Andromeda, which is 2,538,000 light years away (Scudder, 2013). Since there isn’t any vehicle, machine, or any rocket that can travel at the speed of light, there isn’t anyway, that we can get there (Scudder, 2013). Even if a vehicle would travel at the speed of light, then it would take over 2, 000, 000 years to get there (Scudder, 2013).
That means, as far as we are concerned, traveling to other galaxies and exploring them is out of reach.The farthest object that was ever sent out by humans, is a little outside of our solar system (Rothstein, 2015). Because right now no objects that humans have made have been out of our solar system, this limits to finding life through exploration to only our solar system (Rothstein, 2015). The farthest that any human have gone outside of Earth to the moon during the Apollo 17 mission in December 1972 (Rothstein, 2015).
Due to the fact that the farthest we had ever traveled is to the moon, that means we have never been able to explore other planets and this hinders our ability to find life (Rothstein, 2015). Telescopes have been used to observe other planets outside of our solar system, but these telescopes can only detect planets based on the shadows they cast (Seti, 2013).
They can’t take pictures, meaning that there is no way one can even examine the surface of planets to detect life (Seti, 2013). In other words, since we don’t have the technology needed to closely examine planets outside of our solar system, the possibility of finding life out there is significan.....[read full text]
Firstly, Kepler-186f, discovered on the April of 2014, is a planet that is in an habitable zone of another star and contains liquid water (Kramer, 2014). Then, On May 2016, researchers found seven Earth-sized exoplanets orbiting the TRAPPIST-1 dwarf star (Faris, 2018). The densities of each planet may indicate that they are rocky planets, but some of them may contain water (Faris, 2018).
On August 2016, Proxima b, a rocky planet in another solar system was discovered. It has a little more mass than Earth and can sustain liquid water on its surface (Kettley, 2017). On February 17 of 2017, another solar system with 7 Earth-sized planets were found revolving around a star (Nina, 2018). At least three of these planets were in an area where liquid water of be on their surface without evaporating or .....