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Cool Fuel Cells

Astronauts have been using them for power aboard spacecraft since the 1960s. Soon, perhaps, they'll be just as common on Earth--powering cars, trucks, laptop computers and cell phones. They're called fuel cells. By combining hydrogen fuel with oxygen, fuel cells can produce plenty of electric power while emitting only pure water as exhaust. They're ...

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CoolFuelCells
Chemistry

What Are Aerosols?

Aerosols are tiny particles suspended in the air. Most occur naturally, originating from volcanoes, dust storms, forest and grassland fires, living vegetation, and sea spray (Figure 1). Human ... Continue reading

Aerosols
Astronomy

Solar Spitwads

Take a piece of paper. Make a little wad. If you're a kid, spit on it. Put it in a straw and blow hard. If your teacher sends you to the principal's office, here's your excuse: you were making a model ... Continue reading

SolarSpitwads
Engineering

How We Use Crystals To Tell Time

Quartz clock operation is based on the piezoelectric property of quartz crystals. If you apply an electric field to the crystal, it changes its shape, and if you squeeze it or bend it, it generates an ... Continue reading

Crystals
Biology

Your Senses Make Sense of Energy

Your different sense receptors are designed to gather different kinds of sensory information about the world around you. That information is in the form of different kinds of energy. Your eyes sense ... Continue reading

EnergySense

Where is God in the Brain?

BrainGodA British study reported that epileptics had 'profoundly spiritual experiences' in a specific region of the brain. In other studies, there was also a region of the brain that became extremely active when subjects were shown religious pictures and when they were asked to engage in any thoughts about God. In the late 1990s, several California neuroscientists discovered the region of the human brain responsible for tuning into God and other religious experiences. They identified the right temporal lobe - which is in front of and just above the right ear (and includes parts of the limbic system) and considered one of the central areas for processing memories and emotions - as the 'God Spot' or the 'God module.' This area of the brain was most active when subjects were experiencing or communicating with The Supreme Being, as well as during near death experiences (NDE).

Over the years, there have been cases of certain types of epilepsy that have promoted higher states of religiosity. Twenty-five percent of the individuals who are victims of right temporal lobe damage report 'seeing God's face' and 'hearing God's voice.' Disease or damage to the same region brings forth religious visions, feelings of ecstasy, and related phenomena. Prominent religious figures such as Joan of Arc were reported to have shown several of the classic symptoms of someone suffering from temporal lobe epilepsy (TLE) complete with revelations, insights, and visions accompanied by seizures, many of the ingredients for the archetypal epiphany.