Bio 141 lab notes

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Bio 141 lab notes

BIO Course Information

Jabir ibn Hayyan Geberconsidered the "father of chemistry ", introduced a scientific and experimental approach to alchemy. After the fall of the Roman Empirethe focus of alchemical development moved to the Islamic World.

Much more is known about Islamic alchemy because it was better documented: The early Islamic world was a melting pot for alchemy. Platonic and Aristotelian thought, which had already been somewhat appropriated into hermetical science, continued to be assimilated during the late 7th and early 8th centuries through Syriac translations and scholarship.

The science historian, Paul Kraus, wrote: To form an idea of the historical place of Jabir's alchemy and to tackle the problem of its sources, it is advisable to compare it with what remains to us of the alchemical literature in the Greek language. One knows in which miserable state this literature reached us.

Collected by Byzantine scientists from the tenth century, the corpus of the Greek alchemists is a cluster of incoherent fragments, going back to all the times since the third century until the end of the Middle Ages. The efforts of Berthelot and Ruelle to put a little order in this mass of literature led only to poor results, and the later researchers, among them in particular Mrs.

The study of the Greek alchemists is not very encouraging. An even surface examination of the Greek texts shows that a very small part only was organized according to true experiments of laboratory: It is different with Jabir's alchemy.

The relatively clear description of the processes and the alchemical apparati, the methodical classification of the substances, mark an experimental spirit which Bio 141 lab notes extremely far away from the weird and odd esotericism of the Greek texts.

The theory on which Jabir supports his operations is one of clearness and of an impressive unity. In vain one would seek in the Greek texts a work as systematic as that which is presented, for example, in the Book of Seventy. The first essential in chemistry is that thou shouldest perform practical work and conduct experiments, for he who performs not practical work nor makes experiments will never attain to the least degree of mastery.

The discovery that aqua regiaa mixture of nitric and hydrochloric acids, could dissolve the noblest metal, gold, was to fuel the imagination of alchemists for the next millennium.

Islamic philosophers also made great contributions to alchemical hermeticism. The most influential author in this regard was arguably Jabir. Jabir's ultimate goal was Takwinthe artificial creation of life in the alchemical laboratory, up to, and including, human life.

He analyzed each Aristotelian element in terms of four basic qualities of hotness, coldness, dryness, and moistness. For example, lead was externally cold and dry, while gold was hot and moist. Thus, Jabir theorized, by rearranging the qualities of one metal, a different metal would result.

Jabir developed an elaborate numerology whereby the root letters of a substance's name in Arabic, when treated with various transformations, held correspondences to the element's physical properties.

The elemental system used in medieval alchemy also originated with Jabir. His original system consisted of seven elements, which included the five classical elements aetherairearthfireand water in addition to two chemical elements representing the metals: Shortly thereafter, this evolved into eight elements, with the Arabic concept of the three metallic principles: In particular, they wrote refutations against the idea of the transmutation of metals.

NOTES: Requires enrollment in BIO lab. This course description page is updated daily for your convenience. Please login to myRCC to view real-time course listings and to register. Study Tidewater Community College Biology flashcards and notes. Conquer your course and sign up for free today! 1 Case Study Lab Report for Labs 12 and The Enterobacteriaceae and Pseudomonas The concept behind the case studies presented in Lab 12 used to illustrate the Enterobacteriaceae and Pseudomonas is for you and your lab partners as a group to: 1. First come up with a valid diagnosis of the type of infectious disease seen in your case.

Chinese alchemy Taoist alchemists often use this alternate version of the taijitu. Whereas European alchemy eventually centered on the transmutation of base metals into noble metals, Chinese alchemy had a more obvious connection to medicine.

The philosopher's stone of European alchemists can be compared to the Grand Elixir of Immortality sought by Chinese alchemists. However, in the hermetic view, these two goals were not unconnected, and the philosopher's stone was often equated with the universal panacea ; therefore, the two traditions may have had more in common than initially appears.

Black powder may have been an important invention of Chinese alchemists.

Bio 141 lab notes

As previously stated above, Chinese alchemy was more related to medicine. It is said that the Chinese invented gunpowder while trying to find a potion for eternal life. Described in 9th-century texts[ citation needed ] and used in fireworks in China by the 10th century,[ citation needed ] it was used in cannons by Gunpowder was used by the Mongols against the Hungarians inand in Europe by the 14th century.

Chinese alchemy was closely connected to Taoist forms of traditional Chinese medicinesuch as Acupuncture and Moxibustionand to martial arts such as Tai Chi Chuan [ citation needed ] and Kung Fu although some Tai Chi schools believe that their art derives from the philosophical or hygienic branches of Taoism, not Alchemical.

In fact, in the early Song dynastyfollowers of this Taoist idea chiefly the elite and upper class would ingest mercuric sulfidewhich, though tolerable in low levels, led many to suicide.AET Internal Combustion Engine Theory and Servicing.

This is a theory/laboratory course designed to introduce the student to basic heat engine types, their . Here is the best resource for homework help with BIO Anatomy and Physiology at Northern Virginia Community College.

Find BIO study guides, notes, and BIO Lab Practical 5 Study Guide Spring 2 pages. BIO Exam 1 Study Notes. 5 pages. The start of Western alchemy may generally be traced to ancient and Hellenistic Egypt, where the city of Alexandria was a center of alchemical knowledge, and retained its pre-eminence through most of the Greek and Roman periods.

Here, elements of technology, religion, mythology, and Hellenistic philosophy, each with their own much longer histories, combined to form the earliest known records. biology. If you’re studying the life cycles of living organisms, you’ve come to the right place.

We break down the processes of everything from bacteria to blue whales. Overview. This course is the first semester of a two-semester sequence (BIO HUMAN ANATOMY AND PHYSIOLOGY I-II - 4 credits each). It integrates anatomy and physiology of cells, tissues, organs, and systems of the human body.

BIO H20P is an online only course that requires the student to register for a lecture and lab combination. There will be no scheduled on-campus class meetings for the lecture portion.

Course materials and online resources will be provided to students using the online format.

BIOL Malcos — Penn State University Department of Biology