Where did Greece get its gold? By the time of the death of Alexander of Macedon (323 B.C.), the Greeks had mined gold from the Pillars of Hercules (Gibraltar) all the way eastward to Asia Minor and Egypt, and we find traces of their placer mines today. Did ancient Greece have coal? Finally, coal mining […]
Why does mutation occur?
Why does mutation occur? A mutation is a change that occurs in our DNA sequence, either due to mistakes when the DNA is copied or as the result of environmental factors such as UV light and cigarette smoke. Mutations can also occur as the result of exposure to environmental factors such as smoking, sunlight and […]
Can a camera see around corners?
Can a camera see around corners? Engineers at Stanford University have been upgrading a camera they developed with the ability to “see” around corners. The previous camera’s systems for viewing scenes outside its line of sight relied on objects that either reflect light evenly or strongly. How ordinary camera can see around corners? Good news […]
What were the three main ideas in the Federalist Papers?
What were the three main ideas in the Federalist Papers? Separation of powers of the national government by dividing it into 3 branches : The legislative, the executive, and the judiciary. Why did the Federalists support the Constitution? Federalists also believed that a strong central government could best protect individual citizens’ rights and freedoms. Federalists […]
What wind belt is the US in?
What wind belt is the US in? Westerly Wind Belt Does wind change direction? Wind travels from areas of high pressure to areas of low pressure. Additionally, heat and pressure cause the wind to shift direction. Coriolis effect is the rotation of the earth from west to east, which, generally speaking, causes winds to blow […]
What is a good substitute for glycerin?
What is a good substitute for glycerin? corn syrup What is a substitute for glycerin in bubbles? If you don’t have glycerin on hand, you can substitute with light corn syrup. Distilled water will provide best results but you can substitute with regular tap water if needed. How do you make homemade bubbles without sugar? […]
What is basic and derived units?
What is basic and derived units? a. Base units are defined by a particular process of measuring a base quantity whereas derived units are defined as algebraic combinations of base units. b. A base quantity is chosen by convention and practical considerations. Derived quantities are expressed as algebraic combinations of base quantities. What is another […]
What is the volume of a ball that is 18 inches in diameter?
How do I get rid of condensation on the inside of my windshield?
How do I get rid of condensation on the inside of my windshield? First thing: Use your windshield wipers. This will help get rid of the condensation until you’ve balanced out the temperature. Warm up your car: Turn down the AC to the lowest (least-cool) setting to increase the temperature without it becoming too uncomfortable. […]