Sunday, January 18, 2009

knife collectables presents Neanderthals Were Not That Primitive

How smart where these "cavemen" really?





The stereotypes that surround ancient humans were that they were not intellectually developed people, hunting animals using crude means and living life wearing leaves. However, the research shows that not all cavemen were primitive.





Man has evolved a long way since he parted company from his jungle cousins, the apes. Apes share ancestors with humans, and like us are also considered primates. Some primates learned to walk on two legs, which is where the evolutionary path to humanity started. Evolution is is the process of change that turned our ancient ancestors into homo sapiens, and it continues on today.





Early primates evolved into the genus homo about 2 million years ago. In the modern day world, the animal that is closest to humans genetically is the chimpanzee, which shares 98.4% of its DNA with humans.





Somewhere in the middle of this evolutionary journey, the Neanderthals came into picture. The Neanderthal was a species of the Homo genus which inhabited Europe and parts of western and central Asia.





Neanderthals had many adaptations to a cold climate: short, robust builds, and rather large noses - traits selected by nature in cold climates. Their cranial capacity was larger than modern humans, indicating that their brains may have been larger. Compared to modern humans, Neanderthals were similar in height but with more robust bodies, and had distinct features of shape, especially of the skull.





The skulls gradually accumulated more unusual traits, particularly in certain relatively isolated geographic regions. Evidence suggests that they were much stronger than modern humans. Their relatively robust stature is thought to be an adaptation to the cold climate of Europe. It is commonly believed that Neanderthals were not able to speak complex language.





However, the discovery a bone similar to that in the modern human's mouth suggests that technically, Neanderthals had the power of speech. It is a common assumption that these were very primitive creatures who did not know how to perform the basic tasks such as hunting and farming. However, this has been proven wrong by research carried out recently in England.





Dozens of tools thought to have belonged to Neanderthals have been dug up at an archaeological site called Beedings in West Sussex. Neanderthals are thought to have used tools of the Mousterian class, which were often produced using soft hammer percussion, with hammers made of materials like bones, antlers, and wood, rather than hard hammer percussion, using stone hammers. A result of this is that their bone industry was relatively simple.





There is evidence that they routinely constructed a variety of stone implements. Neanderthal tools most often consisted of sophisticated stone-flakes, task-specific hand axes, and spears. Many of these tools were very sharp. There is also good evidence that they used a lot of wood, objects which are unlikely to have been preserved until today.





Neanderthals hunted large animals, such as the mammoth. Stone-tipped wooden spears were used for hunting and stone knives were used for butchering the animals. They are also believed to have gathered wild plants like their ancestors, Homo erectus.





Neanderthals also performed many sophisticated tasks which are normally associated only with humans, such as controlling fire, constructing complex shelters, and skinning animals. This study has silenced many people who doubted the technological advancement of the Neanderthals.


Sara Jones was a fine student but science was a source of frustration she didn't want her kids to suffer. She met Rick and Amanda Birmingham and realized their grasp of everyday science was the secret to making science fun. To learn more about the solution to science stress visit www.SuperFunScience.com

knife collectables: sog knife

knife collectables: sog knife

Article Source: www.articlesnatch.com

knife collectables presents Interesting Facts About Woodworking

Woodworking is the art of using wood to form beautiful items for your home or commercial use. They are created and made exclusively through the use of wooden materials. If you are looking for a way to decorate a room, you should be able to find many wooden items that can be used for woodworking designs.





Woodworking is the utilization of wood to produce fine-looking things for your home or commercial use. They are created and made absolutely by means of using wood equipment. Primarily woodworking is a complicated job because it was a tremendously labor intensive task.





History of woodworking


Among the early discoveries of wooden gear are the wooden sticks from Clacton-on-Sea, Lehringen, and Kalambo Falls. The spear from Sch?ningen in Germany gives some of the earliest instance of wooden hunting equipment. Flint tools were employed for carving. From Neolithic times, carved ships made of wood are well-known.





The progenitors of Chinese woodworking are considered to be Lu Ban and his spouse Lady Yun, hailing from the Autumn and Spring Period. Lu Ban indeed is believed to have brought the plane, chalkline, and other tools to China. Carving is a significant procedure of woodworking. Carving makes the piece exceptional. Power routers have been an advantage of new equipment for carving. They are fully automatic device.





Wood working tools:


Essential Hand Tools


1. Bedrock Bench Plane - This is the definitive tool used to supply firmness. It supports the iron right to the heel to present clean and trouble-free carving.


2. Basic Block Plane - this tool is very handy to peel the wood fine, therefore gets an appropriate space in all wood worker's box.


3. Chisel- this is the simplest however the most important tool. It is used to clean the mortise, to square angle, to put in hardware.


4. Handsaw- used for cross cutting and tearing, you can choose for whichever manual or motorized saw. The variety consists of flash cutting, short toolbox saw, Japanese saw. Choose depending on your requirement.


Woodworking hand tools are around for over centuries hand have not changed much; others have been enhanced generally over the past years.





Other woodworking tools


Claw Hammer


There are lots of classes of claw hammers offered; the most flexible being the claw equipped with a smooth, somewhat circular finish head.





6" Speed Square


Speed Square is the quickest and easiest device for marking a square line for an end cut, and can be used to quickly mark any angle up to 45-degrees or measure up to six inches.





25' Retractable Tape Measure


An excellent retractable tape measure ought to include both Metric and Standard markings, a locking tool and a slightly movable hook at the tape end.





Function Knives


A Function Knife is a resourceful cutting tool used for scribing a mark in a piece of stock, clean-up up a pivot mortise or any additional associated task.





Chisels


A superbly sharpened chisel is ideal for cleaning out rubbish from mortises and joints. Chisels come in 1", 3/4", 1/2", and 1/4"width sizes.





Screwdrivers


Screwdrivers are presented as 1, 2 and 3 sizes of same Phillips and Flathead varieties, as well as a two of a kind of square head, Torx and star drivers.





Sliding Bevel


A Sliding Bevel is like a square, except that it can be adjusted to any angle and locked in place using a locking device.





Block Plane


This piece of equipment is used for shaving lean amounts of wood away from the stock, and is very useful for cleaning up boundaries for the period of assembly.





Gadgets for wood working store can be divided into following types


- Stationery tools


- Mobile tools.


Stationery tools are bulky, massive tools and necessary for any shop.


1. Combination of table saw and table router- this is a very important tool generally to be found in the heart of the shop. It requires large space around so as to allow working with large wood pieces.


2. Workbench - a shop necessitates strong workbench to assist comfortable usage of wood.


3. Motorized chisel- this is essential for carving of wood.


4. Power planer- a very important tool to better cut the wood. It helps in cutting similar surfaces.


5. Oscillating spindle-sander- it is a tool to comfortably make sanding curves.


6. Jointer- an essential tool without which any woodwork can't be done.


7. Set of tool cabinets- this is supposed to be ideally found close to the workbench to set aside uninterrupted work to the wood worker.


For more information on Facts about Woodworking Supplies please visit our website.

knife collectables: sog knife

knife collectables: sog knife

Article Source: www.articlesnatch.com