ScienceIQ.com

NASA's First Historic Challenge

In a time of uncertainty at home and abroad, an American president proposes bold new steps in the exploration of space. He calls for 'longer strides' which 'may hold the key to our future here on Earth.' He touts the potential of 'even more exciting and ambitious exploration of space, perhaps beyond the moon, perhaps to the very end of the solar ...

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NASAsFirstHistoricChallenge
Chemistry

The Melting Point

Physical properties of a material fall into two categories: intrinsic properties determined by the structure of the particular molecule, and bulk properties characteristic of quantities of molecules ... Continue reading

TheMeltingPoint
Astronomy

The Sun, The Mighty Engine Of Our Solar System

Our Sun has inspired mythology in almost all cultures, including ancient Egyptians, Aztecs, Native Americans, and Chinese. We now know that the Sun is a huge, bright sphere of mostly ionized gas, ... Continue reading

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Astronomy

Cosmos Provides Astronomers with Planet-Hunting Tool

If only astronomers had a giant magnifying glass in space, they might be able to uncover planets around other stars. Now they do -- sort of. Instead of magnifying a planet, astronomers used the ... Continue reading

PlanetHuntingTool
Engineering

Pass the Basalt

Advanced composite materials technology is a field that is growing both quickly and steadily. That new fiber materials and applications will be developed is the proverbial 'no brainer'. However, ... Continue reading

PasstheBasalt

Is the Dead Sea really dead?

IstheDeadSeareallydeadThe Dead Sea is located on the boundary between Israel and Jordan at a lowest point on earth, at 400 meters (1,320 feet) below sea level. All waters from the region, including the biggest source, the Jordan River, flow into the Dead Sea where there are hardly any outflows short of ground based sink holes and evaporation. This makes it the saltiest and most mineral-laden sea in the world.

The salt concentration is so great, (about one third of salt per weight of water), that fish introduced into the sea by the Jordan River die almost instantly. Only bacteria and halophytes (plants that grow in salty soils) survive. White salt crystals form at the bottom and on the edges of the sea. This high salinity, and hence high density of the water, makes the Dead Sea one of the greatest swimming pools in the world. Even if you don’t know how to swim, don’t worry, you will be able to effortlessly float in the Dead Sea.

The latest measurements indicate that Dead Sea may be in trouble. Namely, the surface level of the water is retreating by 3 feet (90 cm) each year. Many believe that the problem lies in insufficient volume of water flowing into it from the Jordan River due to its overuse by the urban areas. Will the Dead Sea one day be called the Dry Sea? Time will tell.