A good advancement would be a portable radio. They have made life easier for people who are walking/hiking and are looking for something such as the weather for the night or the score for a sports game.
The angle of sunlight is greater in the Southern Hemisphere during the winter. During the June solstice, the opposite is true. The Northern Hemisphere receives the maximum intensity of the sun's rays, while the angle of sunlight decreases in the Southern Hemisphere.
Answer:
drugs capable of influencing perception, mood, cognition, or behavior
C. Natural Rights
John Locke had the idea of natural rights, which he stated were life, liberty, and property. The founding fathers changed property to the pursuit of happiness
