Monday, November 15, 2010

What are the tools of Chemistry?

In my Opinion when I here the words Chemistry Lab, then I think of many things. Such as a the movie called "Absolute Zero". I also think about other stuff such as a big Lab with many tools in  it; glass, molecules, and the Periodic table. Here is what I found out that professional Chemists have in their Lab.
Chemists need Gloves, Goggles, a lab Coat, heat-on-blocks (with different sizes), starfish set-up, test tubes (also in different sizes), bottom flasks, Computers, Calculators, and other different supplies. 

Friday, November 12, 2010

Waste Disposal

What is Waste Disposal?
"The process of getting rid of unwanted, broken, worn out, contaminated or spoiled materials in an orderly, regulated fashion."
For me this means that you just throw everything away, without recycling anything if it.

I found out that out that People do not really care about what they throw away, nor about Global Warming.
In Addition there are over 1.000.000 Trash Places. We throw most of our trash into the Sea, there is already a huge place where there is trash. In the U.S the throw the old Metro trains into the ocean.
I think that it is interesting
Many Companies or Supermarkets have usually at the exit or the entrance a little box where you can put in your old batteries you do not use anymore. Also many Companies are recycling and are ahead of us.
To recycle costs a lot of money. Here are some examples that need special treatment; Appliances, Batteries, Computers, Construction Debris, Electronics, Florescent Lamps, Landscape Waste, Mercury, Motor Oil, Paint, Propane Gas, and Used Tires.

Thursday, November 11, 2010

Absolute Zero

Part 1
I thought that it is pretty impressive that they could have predicted that we would use this in the future.
Also that they did that so smartly with the Ice cubes.
What I noticed was that the people got refrigerators after that trade was going around the world.

Part 2
James Dewar always wanted to reach absolute zero, he eventually did, it he liquefied: Nitrogen, Hydrogen, and Oxygen   10 Celsius above Absolute Zero.
Apparently he had close down his lab for six months, because so many scientists or helpers got hurt, such as loosing an eye, or even breaking a bone.
Finally they found out something in a sample of Mercury, if something is four degrees above absolute zero, the electricity abruptly vanishes.

Monday, November 1, 2010

Phases of Matter

" Matter can exist in several distinct forms which we call phases. We are all familiar with solids, liquids and gases. Whether a substance is a solid, liquid or gas depends on the potential energy in the atomic forces holding the particles together and the thermal energy of the particle motions. The pressure on the subtance also has an effect on the phase."
Solid is one of the major states of matter. It is characterized by structural rigidity and resistance to changes of shape or volume. Unlike a liquid, a solid object does not flow to take on the shape of its container, nor does it expand to fill the entire volume available to it like a gas does.
Liquid is one of the three classical states of matter. Like a gas, a liquid is able to flow and take the shape of a container, but, like a solid, it resists compression. Unlike a gas, a liquid does not disperse to fill every space of a container, and maintains a fairly constant density.
gas - the state of matter distinguished from the solid and liquid states by: relatively low density and viscosity; relatively great expansion and contraction with changes in pressure and temperature; the ability to diffuse readily; and the spontaneous tendency to become distributed uniformly.



On the Picture above you can see the three types of matter.