Over longer distances, a shock wave can change from a nonlinear wave into a linear wave, degenerating into a conventional sound wave as it heats the air and loses energy.

There is, however, another way to look at the worldwide surge of populism.

The chemical reaction of the medium occurs following the shock wave, and the chemical energy of the reaction drives the wave forward.

With higher energy prices, many Russian officials are enjoying their renewed power.

A healthy supply of alternative energy sources will help to combat gasoline price spikes.

Before the real estate boom of the late 1970 s, hardly anyone was worried about rising home prices.

Because of rising energy prices from green subsidies, 800,000 German households can no longer pay their electricity bills.

The agenda to address climate change overlapped with the imperative for greater energy efficiency in the wake of high energy prices.

Mr. El Badri (Egypt) noted that the report of the Special Rapporteur had touched on the rise of Islamophobia in many parts of the world.

Higher energy use is already changing the world's climate in dangerous ways.

It is projected that world energy demand will continue to grow rapidly in the coming decades.

Energy and high fuel prices were crucial factors affecting development.

On a worldwide scale, nuclear energy is thus only a small component of the global energy mix, and its share, contrary to widespread belief, is not on the rise.

The continued high prices of food could strain the already low purchasing power of the chronically food insecure population.

Given the high levels of excess capacity and unemployment in Europe and America, quantitative easing is unlikely to trigger a bout of inflation.

But higher energy prices, by themselves, will not cause the ECB to pull the interest rate trigger.

The International Energy Agency s 2010 World Energy Outlook foresees a rise in global energy demand of 40 by 2030 an unforgiving reality that is most tangibly felt in developing countries, particularly in Asia.

WAVE

This is due not only to the higher concentration of metabolizable energy in grain than in roughages, but also to the higher ratio of net energy of gain to net energy of maintenance where metabolizable energy intake is higher.

Total energy use is soaring, reflecting the combined effect of rising per capita incomes and thus rising per capita energy use and population growth.

Rising energy and commodity prices helped create the global food crisis, which fed the financial crisis.

He attributes, debatably, the entire problem to higher carbon emissions from cars, power plants, etc.

Rising energy prices already point in this direction, but this knowledge has yet to register.

Good for you! But the currency appreciation that follows will likely set off an unsustainable consumption boom, wreak havoc with your export sector, create unemployment, and sap your growth potential.

Moreover, because crude oil is priced in US dollars, a rise in the euro means a fall in energy costs.

The energy of the laser heats the surface of the pellet into a plasma, which explodes off the surface.

Higher interest rates to reduce the housing boom seem, even in retrospect, ill advised if the cost is mass unemployment.

If buying dollars is not sufficient to stem the appreciation tide, regulators in emerging economies will erect an array of other barriers to keep money out.

If a change in surface height represents an isostatically compensated change in crustal thickness, the rate of change of potential energy per unit surface area is proportional to the rate of increase of average surface height.

14 Broadband refers to telecommunications in which a wide band of frequencies is available to transmit information.

Wind energy is now competitive with conventional power plants, while rising gas and coal prices and the steady decline in renewable energy costs imply that, within a few years, fossil fuels will be even less attractive.

Similarly, the 2010 2011 price rise for cereals is closely linked to the export restrictions imposed by Russia and Ukraine after both countries were hit by severe drought.

The utilization of wood as fuel has increased dramatically in the 1990s, even in cities, because of the numbing price hikes on other forms of energy.

With the global economy still recovering from the 2008 financial crash, higher energy costs not yet fully offset by greater energy efficiency are worrying business and political leaders.

Sami was trying to catch a wave.

Redistributing some of the profits from high energy prices enabled the regime to improve living standards and make itself popular with ordinary Russians.

One trend that we notice in all those things is that the amount of energy per gram per second that flows through this, is actually increasing.

Because crude oil is priced in US dollars, and the dollar has depreciated against the euro, European consumers have gotten off relatively easy from rising energy prices.

According to the International Energy Agency, the current trend in coal use is in line with a scenario that would lead to a 6ºC temperature rise.

It s considered directly responsible for a spike in the sale of generator sets and even for absences from religious functions which clash with its broadcast times.

And now, having underinvested in energy efficiency and security when the costs of doing so were lower, America is poorly positioned to face the prospect of rising real prices.

With the rise in energy prices boosting its economy, Russia has seen an opportunity to reassert its power over its neighbors.

By contrast, the problems faced today high energy and food prices and a crumbling financial system have, to a large extent, been brought about by bad policies.

Growing demand for energy, metals, and minerals particularly in China has driven unprecedented levels of foreign investment.

Today we face the scourge of terrorism.