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Manufacturing Processes – 2000 words

  Manufacturing Processes   Moulding and shaping   Ceramic Processes:   Slip casting Slip and clay are poured into a mould. This is a traditional way of creating and forming a ceramic. The slip casting method gives a better quality, and is far superior to hydraulic casting as there is a higher concentration of ceramic … Continue reading Manufacturing Processes – 2000 words

Printed Circuit Boards – 1000 words

      ‘Component Technology and Design Parameters’   Printed Circuit Boards (PCB’s) are in everything that we use nowadays and they replaced the old vacuum tubes. Nowadays ‘Solid State’ devices with transistors, diodes, resistors and capacitors have replaced the need for these old vacuum tubes. PCB’s can now be found in virtually everything that … Continue reading Printed Circuit Boards – 1000 words

Neurotransmitters 2000 words

There are over one hundred known neurotransmitters in the human brain which permit neurons to communicate with each other via a process of chemical transmission. These known neurotransmitters have been classified into two broad categories, the first characterised as small-molecule neurotransmitters, which mediate small synaptic actions, when a rapid neurological response is necessary and the … Continue reading Neurotransmitters 2000 words

Neuroscience – the brain and spiral cord – 1500 words

Give an account of the layers that cover the brain and spinal cord. Include in your answer their composition, function and how they are involved in a NAMED disease. (1510 words)     The brain and spinal cord are covered by three membranes called meninges, which when looked at from within outwards, are termed the … Continue reading Neuroscience – the brain and spiral cord – 1500 words

Geography: Arsenic from Mining in Water Table 800 words

  HOW IS THE POTENTIAL RISK OF RELEASE OF ARSENIC AND ANTIMONY IN WATER DRAINING MINING RESIDUES ASSESSED? Mining activities produce residues that contain high levels of Arsenic sulphides and Antimony sulphides  and hence  release and Arsenic(As) and Antimony(Sb) into the aquatic ecosystem. Both metalloids are highly toxic for biota and humans, and a possible … Continue reading Geography: Arsenic from Mining in Water Table 800 words

The EU’s Policies on Ozone Depletion and Climate Change 3000 words

Discuss the evolution of the European Union’s policies relating to ozone depletion and climate change during the last two decades. Why has the European union been successful in the first and not the latter? Introduction The situation for the legislation and the initiatives pertaining to ozone depletion and climate change as it stands now in … Continue reading The EU’s Policies on Ozone Depletion and Climate Change 3000 words

Physics A level 600 words

Analysis & Conclusion   This section of the essay will provide analysis and conclusion in accordance with globally accepted standards (Harvard.edu, n.d.).   The main objective of these experiments is to ascertain the “optimum filling point” of the toy rockets that were acquired from the toy manufacturer “Rachet Rockets.” The reason for conducting the research … Continue reading Physics A level 600 words