The possible presence of liquid water is certain to revive speculation that Mars is teeming with microbial organisms. The recipe for life, at least as we know it, calls for liquid water, carbon-based molecules and a source for energy.
There is plenty of ice on Mars, but the chemical reactions for life come to a halt when water freezes.
High-resolution photographs taken by NASA’s Mars Reconnaissance Orbiter, which arrived at Mars in 2006, show fingerlike streaks up to five yards wide that appear on some steep slopes in the planet’s late spring. These streaks grow and shift through summer, reaching hundreds of yards in length before they fade in winter. One crater had about 1,000 streaks. Далее
Ocean Engineering is a multidisciplinary engineering field aimed at solving engineering problems associated with working in the ocean environment and wisely exploring and harnessing the ocean’s resources.
Ocean engineers design, build, operate and maintain ships, offshore structures and ocean technologies as diverse as aircraft carriers, submarines, sailboats, tankers, tugboats, yachts, oil rigs, underwater robots, and acoustic sonar. Далее
John Reid warns climate change may spark conflict between nations – and says British armed forces must be ready to tackle the violence
Israel, Jordan and Palestine
Five per cent of the world’s population survives on 1 per cent of its water in the Middle East and this contributed to the 1967 Arab -Israeli war. It could fuel further military crises as global warming continues.
Israel, the Palestinian Territories and Jordan rely on the River Jordan but Israel controls it and has cut supplies during times of scarcity. Palestinian consumption is severely restricted by Israel. Далее
The vast blue expanse of Lake Titicaca
At an elevation of 12,500 feet (3,811 m), Titicaca, in the Andes, is the highest navigable lake on Earth. This landlocked body of water is shared by two countries, with Peru claiming its western part, and Bolivia its eastern section.
Women congregate beside their wonderful reed constructions.
As if being the highest lake in the world that’s able to be navigated weren’t enough of a record, Lake Titicaca is also the largest lake in South America, at least by water volume. Though Venezuela’s Lake Maracaibo has a larger surface area, it is also connected to the Caribbean Sea via the Gulf of Venezuela and is therefore technically a bay rather than a lake. Далее
We’re used to seeing stunning images of cascading waterfalls in all their fluid glory, but have you ever wondered how they would look if Jack Frost was let loose on them? Well, you need wait no longer as we have compiled a range of fantastic frozen waterfalls.
1. This enchanting image of an ice waterfall perfectly captures the force and flow of the water underneath the ice, making it hard to comprehend how it ever manages to freeze. Далее