Read the following passage and tick the correct answer. (1) Pyramids have an inexplicable power to preserve the things placed inside them. Pyramids were used in ancient Egypt to preserve the mummies of the pharaohs or king. It was found that small desert animals that had wandered into the pyramids had died but not decayed. Bevis, a Frenchman experimented with various models of pyramids - by placing inside them highly perishable food. Surprisingly they were preserved far beyond their usual span.(2) A Czech engineer Karl Drbal read about the experiments by Bevis and wondered whether the pyramids will have similar effect on the corrosion of metals. He left some blunt blades under the model pyramid and indeed the blades had become sharper. Drbal's invention was patented. (3) How and why this works no one knows. A razor blade has edges made up of a fine layer of crystals. The edges are so fine that it is believed that the pressure of moonlight can rub them off and sharpen the blade. May be the shape of the pyramid has the power to concentrate the energy on the things placed in it. (4) The possibility of power the pyramids have is endless. May be it could be used to preserve youth, ensure good health or may be even build your house in the shape of pyramid and so increase your life span.(5) Would you like to build a cardboard pyramid and try some simple experiments like sharpening a blade? Make sure you perform your experiment under the care of a grown-up. a) The main idea of the passage is *Read the following passage and tick the correct answer. (1) Pyramids have an inexplicable power to preserve the things placed inside them. Pyramids were used in ancient Egypt to preserve the mummies of the pharaohs or king. It was found that small desert animals that had wandered into the pyramids had died but not decayed. Bevis, a Frenchman experimented with various models of pyramids - by placing inside them highly perishable food. Surprisingly they were preserved far beyond their usual span.(2) A Czech engineer Karl Drbal read about the experiments by Bevis and wondered whether the pyramids will have similar effect on the corrosion of metals. He left some blunt blades under the model pyramid and indeed the blades had become sharper. Drbal's invention was patented. (3) How and why this works no one knows. A razor blade has edges made up of a fine layer of crystals. The edges are so fine that it is believed that the pressure of moonlight can rub them off and sharpen the blade. May be the shape of the pyramid has the power to concentrate the energy on the things placed in it. (4) The possibility of power the pyramids have is endless. May be it could be used to preserve youth, ensure good health or may be even build your house in the shape of pyramid and so increase your life span.(5) Would you like to build a cardboard pyramid and try some simple experiments like sharpening a blade? Make sure you perform your experiment under the care of a grown-up. a) The main idea of the passage is *Read the following passage and tick the correct answer. (1) Pyramids have an inexplicable power to preserve the things placed inside them. Pyramids were used in ancient Egypt to preserve the mummies of the pharaohs or king. It was found that small desert animals that had wandered into the pyramids had died but not decayed. Bevis, a Frenchman experimented with various models of pyramids - by placing inside them highly perishable food. Surprisingly they were preserved far beyond their usual span.(2) A Czech engineer Karl Drbal read about the experiments by Bevis and wondered whether the pyramids will have similar effect on the corrosion of metals. He left some blunt blades under the model pyramid and indeed the blades had become sharper. Drbal's invention was patented. (3) How and why this works no one knows. A razor blade has edges made up of a fine layer of crystals. The edges are so fine that it is believed that the pressure of moonlight can rub them off and sharpen the blade. May be the shape of the pyramid has the power to concentrate the energy on the things placed in it. (4) The possibility of power the pyramids have is endless. May be it could be used to preserve youth, ensure good health or may be even build your house in the shape of pyramid and so increase your life span.(5) Would you like to build a cardboard pyramid and try some simple experiments like sharpening a blade? Make sure you perform your experiment under the care of a grown-up. a) The main idea of the passage is *
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Read the following passage and tick the correct answer. (1) Pyramids have an inexplicable power to preserve the things placed inside them. Pyramids were used in ancient Egypt to preserve the mummies of the pharaohs or king. It was found that small desert animals that had wandered into the pyramids had died but not decayed. Bevis, a Frenchman experimented with various models of pyramids - by placing inside them highly perishable food. Surprisingly they were preserved far beyond their usual span.(2) A Czech engineer Karl Drbal read about the experiments by Bevis and wondered whether the pyramids will have similar effect on the corrosion of metals. He left some blunt blades under the model pyramid and indeed the blades had become sharper. Drbal's invention was patented. (3) How and why this works no one knows. A razor blade has edges made up of a fine layer of crystals. The edges are so fine that it is believed that the pressure of moonlight can rub them off and sharpen the blade. May be the shape of the pyramid has the power to concentrate the energy on the things placed in it. (4) The possibility of power the pyramids have is endless. May be it could be used to preserve youth, ensure good health or may be even build your house in the shape of pyramid and so increase your life span.(5) Would you like to build a cardboard pyramid and try some simple experiments like sharpening a blade? Make sure you perform your experiment under the care of a grown-up. a) The main idea of the passage is *Read the following passage and tick the correct answer. (1) Pyramids have an inexplicable power to preserve the things placed inside them. Pyramids were used in ancient Egypt to preserve the mummies of the pharaohs or king. It was found that small desert animals that had wandered into the pyramids had died but not decayed. Bevis, a Frenchman experimented with various models of pyramids - by placing inside them highly perishable food. Surprisingly they were preserved far beyond their usual span.(2) A Czech engineer Karl Drbal read about the experiments by Bevis and wondered whether the pyramids will have similar effect on the corrosion of metals. He left some blunt blades under the model pyramid and indeed the blades had become sharper. Drbal's invention was patented. (3) How and why this works no one knows. A razor blade has edges made up of a fine layer of crystals. The edges are so fine that it is believed that the pressure of moonlight can rub them off and sharpen the blade. May be the shape of the pyramid has the power to concentrate the energy on the things placed in it. (4) The possibility of power the pyramids have is endless. May be it could be used to preserve youth, ensure good health or may be even build your house in the shape of pyramid and so increase your life span.(5) Would you like to build a cardboard pyramid and try some simple experiments like sharpening a blade? Make sure you perform your experiment under the care of a grown-up. a) The main idea of the passage is *Read the following passage and tick the correct answer. (1) Pyramids have an inexplicable power to preserve the things placed inside them. Pyramids were used in ancient Egypt to preserve the mummies of the pharaohs or king. It was found that small desert animals that had wandered into the pyramids had died but not decayed. Bevis, a Frenchman experimented with various models of pyramids - by placing inside them highly perishable food. Surprisingly they were preserved far beyond their usual span.(2) A Czech engineer Karl Drbal read about the experiments by Bevis and wondered whether the pyramids will have similar effect on the corrosion of metals. He left some blunt blades under the model pyramid and indeed the blades had become sharper. Drbal's invention was patented. (3) How and why this works no one knows. A razor blade has edges made up of a fine layer of crystals. The edges are so fine that it is believed that the pressure of moonlight can rub them off and sharpen the blade. May be the shape of the pyramid has the power to concentrate the energy on the things placed in it. (4) The possibility of power the pyramids have is endless. May be it could be used to preserve youth, ensure good health or may be even build your house in the shape of pyramid and so increase your life span.(5) Would you like to build a cardboard pyramid and try some simple experiments like sharpening a blade? Make sure you perform your experiment under the care of a grown-up. a) The main idea of the passage is *