Alfred Thayer Mahan recommended that the American military should focus on sea-power as the key to its success in any contemporary or future conflicts.
A Smithsonian Institution is not housed in a department, but is rather headed by an administrator who reports directly to the president. This is further explained below.
<h3>What is Smithsonian Institution?</h3>
Generally, The Smithsonian Institution is simply defined as the biggest museum, educational, and research complex in the world.
In conclusion, They report directly to the president and are considered an executive agency.
Read more about House
brainly.com/question/1023637
#SPJ1
In contrast to mechanical waves, electromagnetic waves can travel without a medium. This implies that electromagnetic waves can pass not only through solid objects like air and rock but also through empty space.
James Clerk Maxwell, a Scottish scientist, created a scientific theory to explain electromagnetic waves in the 1860s and 1870s. He realized that electromagnetic waves can be created when magnetic and electrical fields combine together. He compiled this electricity-magnetism relationship into what are now known as "Maxwell's Equations."
German physicist Heinrich Hertz used Maxwell's theories to explain how radio waves are transmitted and received. In honour of Heinrich Hertz, the hertz, or one cycle per second, is the unit of radio wave frequency. Two issues were resolved by his radio wave experiment. First, he had proven that the speed of radio waves was the same as the speed of light, which was something Maxwell had only theorized.
This demonstrated how radio waves are a type of light. Second, Hertz discovered how to create electromagnetic waves by causing the electric and magnetic fields to separate from wires.
learn more
brainly.com/question/25847009
#SPJ9
Answer:
The Tariff of 1816, also known as the Dallas Tariff, is notable as the first tariff passed by Congress with an explicit function of protecting U.S. manufactured items from overseas competition
Explanation:
