Fire and cookery , Biology

Assignment Help:

Fire and Cookery :

Fire and Cookery where and when fiie came to be used  is not known.  Fire, to start with, must have been a frightening thing, giving rise to many myths and legends. However, as man slowly learned to control it, he found it very useful to keep himself wann and to frighten away wild animals. It is easy to imagine that chance eating of  burnt or charred flesh must have led to the idea of cooking, which then made even tough meat edible and tastier.  Thus, it must havetremendously increased the number of  things one could eat.  It was, perhaps, from the use offire for cooking that fired clay pottery and melting of metals for making tools arose.  

Boiling gave rise to certain difficulties. At first, water was heated by dropping hot stones into water in  leather buckets. We find such itones, cracked by heating and chilling,  around prehistoric sites.  The crucial discovery, however, was that by  coating a basket with thick clay it could be put on the fire. Eventually, towards the end of  the Stone Age. it was -discovered  that coated baskets crack while heating, whereas pots made of heat-treated clay do not crack. Fired pottery was,  tlrerel'ore, a very significant discovery. l.'inally, as Lhc problem of storing liquids for long periods in clay pots was tackled, the slower chemical changes of fermentation could be noted and later used for brewing wine.  From the use of dyes, paints and tanning as found in  this epoch, we can  infer that the use of rudimentary chemistry for transforking materials was also in progress in the later part of the Stone Age.  


Related Discussions:- Fire and cookery

Differance between rescue-capacity-building strategy, QUESTIONS: Write ...

QUESTIONS: Write an analysis of the Chapter Twelve, the concluding chapter in ROLL AWAY THE STONE. It will be worth UP TO 50 points if you do it well. Submit it through the "Ex

Explain evolutionary relationship among animal groups, Evolutionary relatio...

Evolutionary relationship among various animal groups is depicted in the cladogram given below. P, Q and R respectively shown: a.  Vertebrae, hair and four limbs. b.  B

Explain about the chromium metabolism, Explain about the Chromium Metabolis...

Explain about the Chromium Metabolism? Chromium appears to be absorbed throughout the small intestine, with absorption being higher in jejunum. The mechanism of absorption has

Explain the maximum containment laboratory, >>>>Write a short note on the f...

>>>>Write a short note on the following- Question 1 Centrism in Bioethics Question 2 Bio Safety check list Question 3 Enforcement of IPRs Question 4 T

Can it be influenced by environmental factors, Variation exhibited in share...

Variation exhibited in shared traits present in a population is due to alleles of the shared genes. can be influenced by interactions of alleles of multiple genes. Can be influence

Storage and distribution - sterilization process, Packs, pouches, and casse...

Packs, pouches, and cassettes are sometimes wet after completing the sterilization process. This is a problem usually associated with the use of paper or paper/ plastic wraps in t

Bee and silkworm diseases, BEE DISEASES - Suffer from nosema diseases...

BEE DISEASES - Suffer from nosema diseases caused by Nosema apis. SILK WORM DISEASES - Pebrine disease caused by Nosema.

What is the characteristic of cardiac muscle, What are the characteristics ...

What are the characteristics of cardiac muscle that allow it to be highly resistant to fatifue?

Ruminal tympany (bloat), R uminal tympany (Bloat) It is the over-diste...

R uminal tympany (Bloat) It is the over-distension of the rumen with gases which may be either frothy or free gas. The disease is characterized by change in silhouette of the

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd