Brass doorknobs automatically disinfect themselves in about 8 hours.
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Iron weighs more after it rusts.
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Scientists in Germany have developed a candy that doesn't cause cavities.
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For a high school science fair project, 17-year-old Michio Kaku built a particle accelerator in his parent's garage that was able to generate a magnetic field 20,000 times greater than the Earth's and produce collisions powerful enough to create antimatter.
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In 1999, Harvard physicist Lene Hau was able to slow down light to 17 meters per second and in 2001, was able to stop light completely.
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