Dominoes dates back to the 12th century! It was played in China during the Yuan Dynasty and was referred to as 'pupai'!
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The most important warship developed between the two world wars was the aircraft carrier. In World War II the aircraft carrier made naval battles possible between fleets which were hundreds of miles apart in which the opposing forces never even saw one another!
For approximately 200 years, microscope technology remained relatively unchanged. In the 1850s, however, Carl Zeiss, a German engineer, developed improvements for the device! Joseph Jackson Lister also helped eliminate the unequal bending of light hitting the microscope lens, leading to further improvements!
Goats have no tear ducts! They famously have horizontal pupils, which allow them to better see approaching predators and prevents them from being overwhelmed by the bright sun. They also serve to give them a wider field of vision, even when it's dark out.
Fact Lab
The most important warship developed between the two world wars was the aircraft carrier. In World War II the aircraft carrier made naval battles possible between fleets which were hundreds of miles apart in which the opposing forces never even saw one another!
For approximately 200 years, microscope technology remained relatively unchanged. In the 1850s, however, Carl Zeiss, a German engineer, developed improvements for the device! Joseph Jackson Lister also helped eliminate the unequal bending of light hitting the microscope lens, leading to further improvements!
Goats have no tear ducts! They famously have horizontal pupils, which allow them to better see approaching predators and prevents them from being overwhelmed by the bright sun. They also serve to give them a wider field of vision, even when it's dark out.
Our Sun is a scorching hot ball of fire made of three quarters hydrogen and helium. Around 99.86% of the mass in our solar system is made up out of the Sun! Remarkably, the mass of the Sun is approximately 330,000 times that of our planet, Earth.
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