Water canons and tear gas were used as well.

Peaceful marches have been attacked with live bullets, expired tear gas, cannon sewage water and batons, resulting in killings, injury, suffocation from gas, torture and arbitrary detention.

Burning hydrocarbons (natural gas and petrol) yields both water and CO2.

Ice also appears colorless, and water vapor is essentially invisible as a gas.

The most prevalent method is water washing where high pressure gas flows into a column where the carbon dioxide and other trace elements are scrubbed by cascading water running counter flow to the gas.

An increasing number of commercial buildings use a combined cycle with cogeneration to provide heating, often water heating, from the output of a natural gas reciprocating engine, gas turbine or stirling electric generator.

Because formaldehyde is a gas at room temperature, formalin formaldehyde gas dissolved in water ( 37 w v) is used when making the former fixative.

When water achieves a specific critical temperature and a specific critical pressure (647 K and 22.064 MPa), liquid and gas phase merge to one homogeneous fluid phase, with properties of both gas and liquid.

In this case a gas or electric booster is used to heat the water.

All energy generators, including coal and gas fired plants, make major demands on water resources.

Water vapor is consistently the most common volcanic gas, normally comprising more than 60 of total emissions.

The process used the water gas shift reaction CO H2O CO2 H2The process was discovered by passing high pressure steam over hot coal, the major source of coke gas.

A wet gas is any gas with a small amount of liquid present.

Secondary recovery techniques increase the reservoir's pressure by water injection, natural gas reinjection and gas lift, which injects air, carbon dioxide or some other gas into the bottom of an active well, reducing the overall density of fluid in the wellbore.

The term wet gas has been used to describe a range of conditions ranging from a humid gas which is gas saturated with liquid vapour to a multiphase flow with a 90 volume of gas.

Some of the glass blocks are made of shiny black glass, with a white or yellow interior and gas filled hollows, which allow them to float on water.

The flue gas consists of mainly carbon dioxide and water vapour, the latter of which is condensed through cooling.

Replacing coal with natural gas does reduce greenhouse gas emissions, even if natural gas itself is not sustainable in the long term.

Gas is a similar issue. Gas is also a biological product. And as you think of gas, well, you're familiar with gas. And here's a different way of mining coal.

Imagine a country with abundant power oil and gas, sunshine, wind but missing one key essential for life water. Infrastructure engineer Fahad Al Attiya talks about the unexpected ways that the small Middle Eastern nation of Qatar creates its water supply.

Have you considered living like an Egyptian standing in a row waiting for bread, running behind a bus, crossing a street flooded with sewage water, drinking from the Nile, eating beans, paying water, electricity, phone, gas, internet, and school bills?

Thousands of Kurds took to the streets in celebration of Newroz, in a pre planned event, but were dispersed with water cannons, tear gas and kettled across Turkey today.

The region s abundant gas resources should also be used to power desalination plants to meet the Maghreb s enormous water needs.

Significant natural resources are iron ore, coal, potash, timber, lignite, uranium, copper, natural gas, salt, nickel, arable land and water.

Gazprom possesses the largest gas transport system in the world, with approximately 158,200 kilometres of gas trunk lines.

The pressure of an atmospheric gas decreases with altitude due to the diminishing mass of gas above each location.

Sulfur water is a condition where the running water contains a high amount of hydrogen sulfide gas that escapes into the air when the plumbing line is opened, giving a distinct rotten egg smell.

A separator for petroleum production is a large vessel designed to separate production fluids into their constituent components of oil, gas and water.

The crude devices, made from large oil drums, gas cylinders and water tanks filled with explosives and scrap metal, have played a devastating role in the civil war in the Middle Eastern country.

For example, after Myanmar signed an agreement with China in 2005 to supply natural gas, India responded by cutting its own gas deal with Myanmar.

Heidelberg had just begun to install coal gas street lighting, so the new laboratory building was also supplied with gas.

T. Boone Pickens Let's transform energy with natural gas

) This is typically done with chlorine and nitrogen gas.

When water that contains dissolved calcium carbonate is warmed, CO2 is removed from the water as gas causing the equilibrium of bicarbonate and carbonate to shift to the right, increasing the concentration of dissolved carbonate.

Reducing the use of new raw materials can result in a reduction of energy usage, air pollution, water pollution and even greenhouse gas emissions.

Argentina has the world s largest fleet of vehicles running on compressed natural gas families use gas intensively most electricity is generated with gas and the petrochemical industry is based on it.

The gas is brought to the market through a gas pipeline network as well as own gas storage facilities with a capacity of 2.6 bcm and sold via own sales channels.

Their values vary from gas to gas.

When police attacked with tear gas, pieds noirs opened fire.

It involves the removal of the vitreous gel and is usually combined with filling the eye with either a gas bubble (SF6 or C3F8 gas) or silicone oil.

They clashed with Iranian police who used tear gas and water cannons to disperse them. At least 19 people were killed in Tehran. Here is a film showing people trying to stop security forces in Tehran

500,000 people are reportedly trapped in villages without electricity, gas or water after a massive snow storm this weekend in Iran's northern provinces, Gilan and Mazandaran.

Fluid power is subdivided into hydraulics using a liquid such as mineral oil or water, and pneumatics using a gas such as air or other gases.

Point of use household water treatment systems, together with safe water storage, can provide safe drinking water from unsafe water sources.

After cutting off electricity and barricading the area around the sit in with road blocks and a convoy of about 30 vehicles, a barrage of tear gas, sound grenades and water cannon rained down on the camp.