the estimated global population was around 7.9 billion people. However, please note that population figures are continuously changing due to births, deaths, and other demographic factors. For the most up-to-date population count, it's best to refer to reliable sources like the United Nations or the World Bank.
Let's assume there are approximately 7.9 billion people on Earth.
Now, let's consider the average shoulder width of a person, which can vary based on factors like gender and body size. For a rough estimate, let's assume an average shoulder width of about 18 inches or 0.45 meters.
To calculate the total length of a line formed by placing all humans shoulder to shoulder, we can use the following formula:
Total line length = Number of people × Shoulder width
Total line length ≈ 7,900,000,000 × 0.45 meters
Total line length ≈ 3,555,000,000 meters
Now, let's convert the line length from meters to kilometers:
Total line length ≈ 3,555,000 kilometers
To put this into perspective, the circumference of Earth at the equator is approximately 40,075 kilometers. So, if all humans were to stand shoulder to shoulder, the line would be roughly 88.7 times the Earth's equatorial circumference.
It's essential to remember that this is a very rough estimate and doesn't account for variations in body sizes, people's willingness to stand so close together, or any other practical considerations. Additionally, as the population changes, these numbers would also need to be recalculated for accurate current figures.