Helium

Introduction: This article provides a brief summary of existing articles H_2 Storage on single and multi-walled carbon nanotubes by Gerasimos E.Ioannatos,Xenophon E.Verykios. And Hydrogen storage in carbon nanotubes revisited written by Chang Liu,Yong Chen, Cheng-Zhang Wu,Shi-Tao Xu,Hui-Ming Cheng. These articles discusses the hydrogen storage aspect in single walled and multiwalled carbon nanotubes. The first article discusses the adsorption of hydrogen on SWCNT and MWCNT at certain…

SUMMARY We found the number of rocket launches from Mahia Peninsula needed to establish a lunar colony to be 28. This is after considering the success rate of our chosen rocket model with the amount of rockets needed to bring all the people and equipment to establish a lunar colony. INTRODUCTION How many rocket launches from Mahia Peninsula would it take to establish a lunar colony? Astronomy, from Greek for the ‘law of the stars’ is arguably the first human science. Since the dawn of time,…

Saturn Saturn is one of the eight planets within our solar system; Nine, if you consider Pluto to be a planet. When we, as an average audience, look at the Saturn we automatically think that it’s that one planet with the the ring around it. Some people even assume that it’s the one and only planet with a ring about it. Those people would be wrong. Saturn is one of four planets that have rings in their orbit. The other three would include Jupiter, Uranus and Neptune. The sixth planet in our…

The student discusses the stages involved in a computed radiography lumbar spine examination for a 35 year old male, with English as his second language, who was sent to the x-ray department following an appointment with his General Practitioner (GP). The clinical details read: “Recent road traffic accident 4 weeks ago, locking pain and stiffness in lumbar region, with bony tenderness. X-ray lumbar spine to rule out fracture” Prior to evaluating the clinical details, the request card was…

1. Introduction Fossil fuels are used to satisfy a very significant fraction of the world energy demands. The use of fossil fuels comes with some adverse effects, prominent among which is the emission of CO2. Carbon dioxide significantly contributes to global warming and, consequently, causes climate change. This has called for international policies like the Kyoto protocol and Copenhagen summit that set limit on greenhouse gases (GHG) emission [1]. Renewable energy sources are carbon neutral…

1.2. How Far? Entropy What is entropy? The interaction of energy and matter governs our lives. We take for granted our ability to use chemicals in batteries to produce sound from MP3 Player. We get into a car and use petrol to travel in hours distance that would have taken our ancestors days. Energy and matter interact on other scales too –from the remnants of the explosion of star hundreds of light years in diameter, to the nucleus of an atom 10-9 mm in diameter. The way in which energy and…

and gas know as a solar nebula. With the rise of the sun, the remaining material began to clump up. Small particles drew together, bound by the force of gravity, into larger particles. The solar wind swept away lighter elements, such as hydrogen and helium from the closer regions, leaving only heavy, rocky materials to create smaller terrestrial worlds like earth. But farther away, the solar winds had less impact on lighter elements, allowing them to coalesce into gas giants. In this way…

In the original Hippocratic Oath, written in 400 B.C.E., physicians were made to swear that they would “neither give a deadly drug to anybody who asked for it, nor will [they] make a suggestion to this effect.” While many physicians to this day fiercely agree with this statement, it would be unreasonable not to reconsider and evaluate a centuries-old perception on physician-assisted suicide. Physician-assisted suicide (PAS) calls for physicians to prescribe lethal medication to patients with…

Any Topic (writer's Choice) YourFirstName YourLastName University title . The space shuttle in which the crew sat with the utmost anxiety consisted most importantly of the Orbiter vehicle, fundamentally considered by one Gaston (1991) as the brains and heart of the spaceship. Chyu & Cavin (1978) also described it that it contained pressurized crew compartment in which sat seven enthusiastic team members ready to ascent into the parts unknown. At the forward fuselage of this orbiter…

CHAPTER – 1 1. INTRODUCTION Carbon nanotubes are allotropes of carbon with cylindrical nanostructure. Constructed with length-to - diameter ratio of up to 132,000,000 :1. These cylindrical carbon molecules have unusual properties, which are valuable for nanotechnology, electronics, optics and other fields of materials science and technology. Nanotubes are members of fullerene structural family. Nanotube’s walls are formed by one-atom thick sheet of carbon called Graphene. The combination of…