why does the earth appear flat to us? For 3rd classs
Answers
Answer:
Explanation:
Although the idea the Earth is flat has been scientifically discredited, there seems to be a growing belief in the conspiracy theory.
And it's getting more traction than some of the other conspiracies out there, like chemtrails (which proposes that a plane's long-lasting condensation trail is actually made up of chemical or biological agent).
Interest in most of these other far-fetched theories remains stable but the flat-Earth movement is growing, particularly in America. And it has some high-profile supporters.
From basketball players to musicians, rappers to TV hosts, a number of celebrities are jumping on the flat Earth bandwagon.
So what's causing a renewed interest in something that's been scientifically disproven for the past two thousand years or more? What does it say about social media? And how did we actually establish that the world is round in the first place?
Once upon a time, it made sense for people to believe that the Earth was flat, says University of Melbourne cartographer Chandra Jayasuriya. Ships would sail off toward the horizon and often never return, and those people left behind didn't really have access to information outside of their communities.
"Their view was egocentric and geocentric. They lived in a village that was the centre of their existence,'' she says. "The further away from the village they travelled, the more hostile the environment became."
Greek philosophers established that the Earth was round as far back as the third century BC, but it wasn't until the 15th century that it became commonly accepted.
The first scientific estimates of the Earth's circumference were made by the Greek mathematician and geographer Eratosthenes in 240 BC. He noted that on the 21st of June that year, in a town called Syene (near modern day Aswan), the reflection of the sun could be seen in a deep well, meaning that it was directly overhead.
But in Alexandria, around 800 kilometres away and almost directly north of Syene, at noon on the same day, the angle of the sun was about seven degrees – or one-50th of a circle.
Answer:
the sun and it's eight planet's together from the solar system