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Essays on Science

Cryogenic
Download This PaperWords: 3029 - Pages: 12

... doctors or morticians will work to keep you cool. They inject you with heparin to prevent blood clots, hook you up to a heart-lung machine to keep oxygen and blood moving through your system artificially, and get you to the cryonics center as quickly as possible. The optimum time from death to arrival at the center is less than an hour. Some patients have arrived as late as six hours after death. At the center, your body is put on a table in the perfusion room. A team of three or four technicians work to drain the blood out of your body and inject a cryoprotective agent to get as much moisture as possible out of the tissues, so the organ don't crack during ...



Dsl
Download This PaperWords: 954 - Pages: 4

... the world to provide POTS (plain old telephone service), the capacity to send enormous volumes of data at very high speeds. With , it's not just a phone line, it's a lifestyle. Some s do that in parallel with the standard voice service, all on the same line and at the same time. Some deliver higher speeds or wider bandwidth - the more dense the data you are sending, the wider the bandwidth you need for quality and speedy transmission. Still others deliver higher capacity for downloading than for uploading data. There is a whole portfolio of technologies coming on stream to match user needs at home and at work. The new millennium is about to put a completel ...



Penguins: The Eyes Have It!
Download This PaperWords: 1047 - Pages: 4

... stay submerged long enough to search out and chase whatever catches their fancy. On dry land, it's a different story-or has been up to now. Waddling along on their flat little feet, eyes fixed intently on the ground, penguins appear myopic, inefficient and generally out of place. In fact the reverse is true. During a recent stay on the Falkland Islands, a Canadian researcher discovered that penguins are able to recognize individuals and navigate the rocky terrain on which they live quite well. Long of body and short of leg, they probably poke their heads forward as an aid to balance. And as for looking at the ground, they're merely-like us-keeping an eye on wher ...



Electrical Energy
Download This PaperWords: 231 - Pages: 1

... at which the capacitor is discharged, which is the current, is decreased. The outcome of this is that the capacitor will be completely discharged meaning that both the current and voltage will equal zero. At this time all the energy stored in the circuit will have been transferred to thermal energy at the resistor. A heater uses electrical power. The power dissipated in a resistor is in return proportional to the resistance and the square of the current that passes through it. As the energy is changed from electrical to thermal the resistor gets hot. In long distance transmission, current is reduced without reducing power by increasing voltage. The resulting low ...



Leukemia
Download This PaperWords: 457 - Pages: 2

... is not inherited and is not contagious. There are two major types of Leukemia, Lymphocytic and Granulocytic. In Lymphocytic Leukemia white blood cells known as Lymphocytes, which are made in the Lymph glands and bone marrow are abnormal or immature. In Granulocytic Leukemia this causes an increase in white blood cells known as granulocytes. Granulocytes are made in the bone marrow, and other tissue. Granulocytes that are affected by leukemia cannot fight of infections. There are two ways in which leukemia can occur. One is acute, and the other is chronic. Acute leukemia is found most in children. It progresses rapidly. Acute leukemia ...



Mutations
Download This PaperWords: 733 - Pages: 3

... C; the result is that the sequence of bases in the two strands is complementary. The arrangement of the bases determines the genetic code of an organism. This code directs the synthesis of proteins at the cellular level. It is written in units called codons, each of which specifies a particular amino acid. (Proteins are composed of amino acids.) A codon consists of a sequence of three bases--for example, GAG or TCA. The four bases can be assembled into 64 possible codons. Because proteins are built from only 20 amino acids, most amino acids are specified by more than one codon. occur when one base is substituted for another or when one or more bases are inserted ...



Genetic Disorders
Download This PaperWords: 804 - Pages: 3

... an individual gene. An example of one would be Huntington’s disease. This condition affects 1 in 10,000 and usually doesn’t affect the person until they are 30 or 40 years old. A person with this disease develops uncontrolled movements and may have problems with coordination, thinking, and judgment. A weakening of the nerve cells in the brain causes these symptoms and later results in death. Another single-gene disorder is the Tay Sachs Disease. People who inherit the faulty Tay Sachs gene lack a crucial enzyme that is needed to break down fatty substances in brain and nerve cells. As a result, these substances build up in such large quantiti ...



Acupuncture 2
Download This PaperWords: 475 - Pages: 2

... nose, and throat disorders, respiratory disorders, Gastrointestinal disorders, Eye disorders, and Neurological and Muscular disorders. The needles used in acupuncture are usually only inserted from 1/4 to 1 inch deep into the skin. There is usually no pain in acupuncture. Usually if any pain it is only mild. Most of the needles now used in acupuncture are disposable needles. Acupuncture does not always only involve needles. They may also use other methods such as moxibustion, cupping, electronic stimulation, magneotherapy and various types of massage. There are also many different styles of acupuncture practiced all over the world. There are ...



The Physics Of Scuba Diving: Swimming With The Fish
Download This PaperWords: 4541 - Pages: 17

... a new world, with unfamiliar dangers. I really wasn't ready for this experience. I was disorientated, causing me to panic, which shortened the length of my dive, not to mention my air supply. Let's just say I would not do that again. To start exploring the underwater world, one must first master a few skills. Certification is the first step of learning to dive. From qualified professionals one must learn how to use the equipment, safety precautions, and the best places to dive. This paper is designed to help give a general understanding of the sport and the importance that physics plays in it. Self- contained Underwater Breathing Apparatus, or SCUBA for sho ...



Ocean Pollution In The Third World
Download This PaperWords: 317 - Pages: 2

... to our oceans here in First World countries and in Third World countries." and also "Why?" we are doing this and to try and get a solution for this problem. This is probably one of the biggest questions for this topic because people keep on dumping waste in the water and this is probably the biggest threat to our oceans because of people throw stuff in our oceans. This question was also good to ask for this topic because this question has a lot of answers and solutions for it like what can people in the First World do to help the Third World people out. The books and my resources found many ways to finish off this problem. I also found some insight to this probl ...




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