Page 1 of 50 - About 500 Essays
  • Negative Effects Of Carbon 14 Isotope

    will be focused in the essay is carbon 14 isotope. Carbon is found in all living things and is the building block for organic material, there is carbon 12, 13 and 14 and they all have different properties. This isotope was discovered on February 27, 1940 by Martin Karmen and Sam Ruben and is the most radioactive out of all carbon isotopes. The relative abundance of it is >0.1% (trace amount) and its relative mass is 14.003241. It has 6 protons and 8 neutrons. This particular isotope is found in all carbon containing substances however it is very rare. Carbon 14 is used for radiocarbon dating which…

    Words: 1020 - Pages: 5
  • Apollo 13: The Third Mission To Landing On The Moon

    Apollo 13 mission was planned to launched and land on the moon and return back to Earth. Unfortunately, after about 56 hours into their flight, an oxygen tank crippled due to an explosion inside of it. The damages this caused forced the crew to only orbit the moon and head back toward Earth without landing. This was the creation of the now famous line, “Houston we’ve had a problem…” The lunar module (LM) ended up landing on Earth on April 17, 1970 at 1:07 p.m., landing in the Pacific Ocean…

    Words: 1471 - Pages: 6
  • Methods Of Dating Essay

    and anthropologists work together to date objects found in their archeological digging, many being millions of years old. Various methods of dating are available, depending on what they are trying to date. In this essay, the techniques of dating objects will be explored and compared. Each method has its advantages and disadvantages, but all extremely complex and scientific, each with its own purpose. The methods that will be discussed will be Radio Carbon Dating, Relative Dating, Absolute…

    Words: 954 - Pages: 4
  • Why Was Apollo 13 Significant

    on Earth. John L. Swigert wasn’t on the prime crew until Mattingly, the prime command module pilot, came down with the German measles. So, unfortunately for him he was called up and thrown into this space mission that caused some health problems to all 3 men on board. The objective of Apollo 13 was to explore Fra Mauro Formation, a crater on the moon explored by the ensuing crew, Apollo 14. But that didn’t happen on the Apollo 13 mission due to them having to abort mission. This was due to…

    Words: 1460 - Pages: 6
  • Lost Moon The Perilous Voyage Of Apollo 13

    oxygen from draining and figuring out how to get them back. Jim Lovell, on the other hand, had to work together with his crew, as they had listened to the exact commands from mission control to get back home, and figure out how to stop the oxygen from draining out, which required them to all work together. But it wasn 't so easy to do so, as Lovell 's crew and mission control, everyone had something to say, and it wasn 't easy to all agree, make a plan, and execute that plan. If someone gave up…

    Words: 1377 - Pages: 6
  • Silicon Carbide Research Paper

    Silicon carbide has been recognised as an important structural ceramic material because of its unique combination of properties. It is a promising ceramic material that can replace conventional metals and ionic-bonded oxide ceramics such as alumina. Structure of Silicon carbide Silicon carbide is a compound of silicon, a metalloid, and carbon, a nonmetal, and has a giant molecular lattice structure. It has a similar structure with diamond. Each carbon atom is joined tetrahedrally to four…

    Words: 726 - Pages: 3
  • Ceramic-Polybenzoxazine Composites Case Study

    the dispersion of these nanoparticle is a key factor in determining the mechanical properties of these nanocomposites as the DMA shows a decrease in the storage modulus at the fraction of 20 wt.% nano-Cr2O3. FIGURE 78 Dispersion of various Cr2O3 nano-filler contents in the poly(P-ddm) matrix by SEM. In this study, we have used the electrochemical impedance spectroscopy (EIS) to study the barrier properties of the neat poly(P-ddm) resin and its related nanocomposites at various amounts of…

    Words: 999 - Pages: 4
  • Fatty Acid Lab Report

    INTRODUCTION Fatty acid is a carboxylic acid with a long aliphatic chain, which is either saturated or unsaturated. Most of the naturally occurring fatty acids contain unbranched chain of an even number of carbon atoms, from 4 to 28. We usually derived fatty acids from triglycerides or phospholipids. Fatty acids are very important sources of fuel because, when they metabolized, they yield large amount of ATP .Fatty acids are regulated by certain transcription factors which control the action of…

    Words: 2048 - Pages: 9
  • Advantages And Disadvantages Of Chemical Vapor Deposition

    First problem is the temperature, most OMCVD processes which are operated thermally occur at 300~800℃ and this is still much higher than the room temperature[9]. Secondly, the organic exhaust gas is usually hazard and toxic to human healthy and can be serious environmental problem without proper treatment. Thirdly, as the goal of the OMCVD process, to produce zero-valent state of metal element with existing technology and producing units is only possible for the Ni(CO)4. The processes which…

    Words: 1580 - Pages: 7
  • Comparison Of Organometallic Compounds

    Comparison of Organometallic Compounds of Transition Metals and Main Group Elements Organometallic Compounds: The compounds which contain at least one direct metal to carbon covalent bond are known as organometallic compounds many of these are thermodynamically unstable and are pyrophoric. The meta may belongs to main group, transition metal, f group metal or a metalloid i.e. selenium, boron, arsenic, silicon, antimony, germanium, and tellurium and the carbon moiety may be alkyl, alkene, alkyne,…

    Words: 1461 - Pages: 6
  • Previous
    Page 1 2 3 4 5 6 7 8 9 50

Related Topics:

Popular Topics: