Cleanrooms are used for many different processes ranging from the production of medications to creating microchips. Although the cleanrooms look similar to normal rooms with features like walls and doors, they are actually quite different. One of the main differences that set cleanrooms apart from other rooms has to do with airflow.
In a standard office, HVAC units typically produce two to ten changes of air per hour. Continue reading The Cleanroom Difference
It is not difficult to imagine that in seeking these everyday necessities, he soon discovered vivid colored pebbles or crystals whose beauty at once distinguished them from the ordinary stone. How pleased and excited he must have been as he hurried back to show his discovery to others.
Perhaps his fellow tribesmen promptly set off in an ancient day gold rush, their eagerness to get some of these pebbles for themselves. In any case it’s easy to imagine that the most appropriate place to show off his treasures was upon the lucky finder. Continue reading Gemstone Characteristics
It is hard to believe that less than a generation ago we did not posses the technology to fight germs like we do today. Within the last 100 years we’ve seen incredible advances in protective clothing that is used in hospitals and clean rooms.
In 1910 polio was running rampant in the United States, and it wasn’t until the 1950’s that a cure for polio was found. It was during this time it was concluded that polio was transmitted via the nose and mouth, and many physicians and nurses started wearing plastic face masks. Continue reading The History Of Protective Medical Clothing
There are several definite ways in which you can waste your time, waste your money, and be certain your dreams of going into a science based field, can be utterly ruined.
Only a small minority of students who take organic chemistry actually intend to become chemists. Many of them are going into fields like biology, medicine, pharmocolgy, or forensic science.
Why be a second rate failure, when following one or more of the following suggestions can make you and your parents shake their heads. Continue reading 5 Great Ways to Fail Organic Chemistry
The rewards of being a pilot are very special. You don’t just get a considerable amount of salary but will also get to visit many various countries at no cost. When you want to be pursue a career in the aviation industry, work towards the successful achievement of certain qualifications for piloting an aircraft, be it private or commercial. You must acquire the needed skills and education as required in the achievement of a commercial pilot’s licence (CPL). The CPL comes with certain privileges and these are stated in the sub-qualifications or ratings. Continue reading The Process Of Obtaining A Commercial Pilot’s Licence
DNA has many uses in genealogy, and there are two main ways that DNA is tested in order to create a profile of your genetic make-up. In genealogy, 3 main DNA types are tested and analysed, those DNA types are:
Autosomal – Distant past, used in ancestrymtDNA – Tests the direct maternal lineY-DNA – Tests male direct paternal line
Two types of test can then be completed on the DNA; STR’s (Short Tandem Repeats), also known as Microsatellites and SNPs (Single-Nucleotide Polymorphism).
STRs are repeating sequences of 2-6 base pairs of DNA. Continue reading How to Analyse DNA in Genetic Genealogy
Introduction to excretion in plants
Excretion is the process of elimination of waste materials from the body. Excretion in plants is much simpler than that of animals and as such it does not pose any serious problem in plants. There are several reasons for this:-
1. The rate of catabolism is comparatively much slower in plants than in animals having the same body weight and consequently the rate of accumulation of body waste is much slower.
Introduction to excretion in plants
Excretion is the process of elimination of waste materials from the body. Continue reading Excretion in Plants