Is pure water a conductor?
Pure water is not a good conductor of electricity. Ordinary distilled water in equilibrium with carbon dioxide of the air has a conductivity of about 10 x 10-6 W-1*m-1 (20 dS/m). Because the electrical current is transported by the ions in solution, the conductivity increases as the concentration of ions increases.
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Pure water is not a good conductor of electricity. Ordinary distilled water in equilibrium with carbon dioxide of the air has a conductivity of about 10 x 10-6 W-1*m-1 (20 dS/m). Because the electrical current is transported by the ions in solution, the conductivity increases as the concentration of ions increases.
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Which is the only planet that rotates clockwise?
If you were to look down at the plane of the solar system from its 'north pole' you would see the planets orbiting the Sun counter clockwise, and rotating on their axis counterclockwise. Except for Venus. Venus would be rotating clockwise as it orbited the Sun counterclockwise.
@askmenow
If you were to look down at the plane of the solar system from its 'north pole' you would see the planets orbiting the Sun counter clockwise, and rotating on their axis counterclockwise. Except for Venus. Venus would be rotating clockwise as it orbited the Sun counterclockwise.
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What makes the sky blue?
A clear cloudless day-time sky is blue because molecules in the air scatter blue light from the sun more than they scatter red light. When we look towards the sun at sunset, we see red and orange colours because the blue light has been scattered out and away from the line of sight.
@askmenow
A clear cloudless day-time sky is blue because molecules in the air scatter blue light from the sun more than they scatter red light. When we look towards the sun at sunset, we see red and orange colours because the blue light has been scattered out and away from the line of sight.
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Why are the nuclei of some atoms unstable?
In some atoms the binding energy is not strong enough to hold the nucleus together, and the nuclei of these atoms are said to be unstable. Unstable atoms will lose neutrons and protons as they attempt to become stable.
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In some atoms the binding energy is not strong enough to hold the nucleus together, and the nuclei of these atoms are said to be unstable. Unstable atoms will lose neutrons and protons as they attempt to become stable.
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Why is it called a wisdom tooth?
Wisdom teeth are called wisdom teeth because they erupt (emerge) into the mouth when people are in their late teens or early twenties, affectionately termed the “Age of Wisdom.” Wisdom teeth are technically referred to as third molars, and they're just like all the other teeth in your mouth.
@askmenow
Wisdom teeth are called wisdom teeth because they erupt (emerge) into the mouth when people are in their late teens or early twenties, affectionately termed the “Age of Wisdom.” Wisdom teeth are technically referred to as third molars, and they're just like all the other teeth in your mouth.
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Can trees explode from freezing?
Cold weather will cause some trees to explode by freezing the sap, because it contains water, which expands as it freezes, creating a sound like a gunshot. The sound is produced as the tree bark splits, with the wood contracting as the sap expands.
@askmenow
Cold weather will cause some trees to explode by freezing the sap, because it contains water, which expands as it freezes, creating a sound like a gunshot. The sound is produced as the tree bark splits, with the wood contracting as the sap expands.
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What does the Mohs scale measure?
Mohs scale is used to measure the relative hardness of a mineral by its resistance to scratching. From softest to hardest, the ten minerals of the Mohs scale are talc (measuring 1 on the scale), gypsum, calcite, fluorite, apatite, orthoclase, quartz, topaz, corundum, and diamond (measuring 10 on the scale).
@askmenow
Mohs scale is used to measure the relative hardness of a mineral by its resistance to scratching. From softest to hardest, the ten minerals of the Mohs scale are talc (measuring 1 on the scale), gypsum, calcite, fluorite, apatite, orthoclase, quartz, topaz, corundum, and diamond (measuring 10 on the scale).
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How hot does it get on Mars?
The temperature on Mars may reach a high of about 70 degrees Fahrenheit (20 degrees Celsius) at noon, at the equator in the summer, or a low of about -225 degrees Fahrenheit (-153 degrees Celsius) at the poles.
@askmenow
The temperature on Mars may reach a high of about 70 degrees Fahrenheit (20 degrees Celsius) at noon, at the equator in the summer, or a low of about -225 degrees Fahrenheit (-153 degrees Celsius) at the poles.
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Do snakes have a good sense of smell?
Most snakes have an excellent sense of smell, in part to make up for their poor eyesight and limited hearing. Rather than a conventional nose, however, snakes sniff with an organ at the roof of the mouth called a Jacobson's organ, which is also found in a few lizard species.
@askmenow
Most snakes have an excellent sense of smell, in part to make up for their poor eyesight and limited hearing. Rather than a conventional nose, however, snakes sniff with an organ at the roof of the mouth called a Jacobson's organ, which is also found in a few lizard species.
@askmenow
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How does a plant loses water?
Plants lose gallons of water every day through the process of transpiration, the evaporation of water from plants primarily through pores in their leaves. Up to 99% of the water absorbed by roots is lost via transpiration through plant leaves.
@askmenow
Plants lose gallons of water every day through the process of transpiration, the evaporation of water from plants primarily through pores in their leaves. Up to 99% of the water absorbed by roots is lost via transpiration through plant leaves.
@askmenow
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What does fire in the hole mean?
"Fire in the hole" is a warning that an explosive detonation in a confined space is imminent. It originated with miners, who needed to warn their fellows that a charge had been set.
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"Fire in the hole" is a warning that an explosive detonation in a confined space is imminent. It originated with miners, who needed to warn their fellows that a charge had been set.
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Which animal sleeps about 20 hours a day?
The sleepiest animal in the world is the koala, who sleeps 22 hours a day. Next is the sloth (20 hours), armadillo and opossum (tied at 19 hours each), lemur (16 hours), then hamster and squirrel (tied at 14 hours each).
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The sleepiest animal in the world is the koala, who sleeps 22 hours a day. Next is the sloth (20 hours), armadillo and opossum (tied at 19 hours each), lemur (16 hours), then hamster and squirrel (tied at 14 hours each).
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What is the chemical in diapers?
Some brands enhance the inner lining with aloe and vitamin E, skin-friendly compounds that are often found in diaper rash creams. The absorbent center contains wood pulp and super-absorbent polymers, usually sodium polyacrylate.
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Some brands enhance the inner lining with aloe and vitamin E, skin-friendly compounds that are often found in diaper rash creams. The absorbent center contains wood pulp and super-absorbent polymers, usually sodium polyacrylate.
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Is the tongue a muscle or an organ?
The tongue is a muscular organ in the mouth. The tongue is covered with moist, pink tissue called mucosa. Tiny bumps called papillae give the tongue its rough texture. Thousands of taste buds cover the surfaces of the papillae.
@askmenow
The tongue is a muscular organ in the mouth. The tongue is covered with moist, pink tissue called mucosa. Tiny bumps called papillae give the tongue its rough texture. Thousands of taste buds cover the surfaces of the papillae.
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How many moons does Saturn have?
The moons of Saturn are numerous and diverse ranging from tiny moonlets less than 1 kilometer across to the enormous Titan which is larger than the planet Mercury. Saturn has 62 moons with confirmed orbits, 53 of which have names and only 13 of which have diameters larger than 50 kilometers.
@askmenow
The moons of Saturn are numerous and diverse ranging from tiny moonlets less than 1 kilometer across to the enormous Titan which is larger than the planet Mercury. Saturn has 62 moons with confirmed orbits, 53 of which have names and only 13 of which have diameters larger than 50 kilometers.
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How does a lunar eclipse occur?
Solar and lunar eclipses are dependent on the alignment of the sun, moon and Earth. When the moon is aligned exactly between the Earth and the sun, the shadow of the moon blocks the sun from view. A lunar eclipse occurs when the moon passes into the shadow of the Earth.
@askmenow
Solar and lunar eclipses are dependent on the alignment of the sun, moon and Earth. When the moon is aligned exactly between the Earth and the sun, the shadow of the moon blocks the sun from view. A lunar eclipse occurs when the moon passes into the shadow of the Earth.
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Can komodo dragons reproduce asexually?
The Komodo dragon, turns out, can do both: they can reproduce sexually or asexually depending on their environmental conditions. At most zoos, females live alone and are kept separate from other dragons.
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The Komodo dragon, turns out, can do both: they can reproduce sexually or asexually depending on their environmental conditions. At most zoos, females live alone and are kept separate from other dragons.
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Is aluminum recyclable?
The consumer throws aluminium cans and foil into a recycle bin. The aluminium is then collected and taken to a treatment plant. In the treatment plant the aluminium is sorted and cleaned ready for reprocessing.
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The consumer throws aluminium cans and foil into a recycle bin. The aluminium is then collected and taken to a treatment plant. In the treatment plant the aluminium is sorted and cleaned ready for reprocessing.
@askmenow
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Who are the kings in a deck of cards?
The four kings, for example, are based on real rulers: the king of diamonds represents the wealthy Julius Caesar; the king of clubs is the brutal Alexander the Great; the king of spades represents the strong but kind David of Israel; and the king of Hearts represents the emotionally disturbed Charles VII of France.
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The four kings, for example, are based on real rulers: the king of diamonds represents the wealthy Julius Caesar; the king of clubs is the brutal Alexander the Great; the king of spades represents the strong but kind David of Israel; and the king of Hearts represents the emotionally disturbed Charles VII of France.
@askmenow