Table of Contents
- 1 How far can you see from 100 feet up?
- 2 What is the farthest you can see on the horizon?
- 3 How far can a person see on a clear day?
- 4 How far can you see out to sea?
- 5 How far can a human see another human?
- 6 How far away can the human eye see an airplane?
- 7 What is the maximum distance of clear vision?
- 8 How far can you see underwater in the ocean?
- 9 What’s the minimum altitude for an open air area?
- 10 How many miles can you see at 10, 000 feet?
- 11 How tall do you have to be to go to high altitude?
How far can you see from 100 feet up?
| Height (ft) | Height (m) | Distance (miles) |
|---|---|---|
| 70 | 21.34 | 11.07 |
| 80 | 24.38 | 11.83 |
| 90 | 27.43 | 12.25 |
| 100 | 30.48 | 12.23 |
What is the farthest you can see on the horizon?
about 3 miles away
Based on the curve of the Earth: Standing on a flat surface with your eyes about 5 feet off the ground, the farthest edge that you can see is about 3 miles away.
How far can the human eye see on the horizon?
A 6ft man standing and looking out to the horizon can see approximately 5km away, as the Earth’s surface curves out of sight. But our ability to see extends well beyond the horizon. It also depends on the amount of dust and pollution in the air, which usually limits normal vision to less than 12 miles.
How far can a person see on a clear day?
(Image credit: NOAA.) On a clear day, you can see for miles and miles and miles. The old saying turns out to be just about true. For a six-foot (182.88 centimeters) tall person, the horizon is a little more than 3 miles (5 kilometers) away.
How far can you see out to sea?
At sea level the curvature of the earth limits the range of vision to 2.9 miles. The formula for determining how many miles an individual can see at higher levels is the square root of his altitude times 1.225.
How far can you see on Mount Everest?
So the next logical question is: how far could a person see from the top of Mt. Everest? The answer: 336 km, which is like seeing Calgary from Edmonton, which is definitely impressive. But crazy enough, that is not the furthest sightline on Earth.
How far can a human see another human?
Human vision limit study puts distance at just 1.6 miles.
How far away can the human eye see an airplane?
So, how far can you see from a plane? Here is the theoretical distance you can see from a plane at different altitudes, given perfect weather conditions: at 1000 feet: 38.7 Miles (62km) at 5,000 feet: 86.6 Miles (140 km)
How far can a human smell?
The mean distance in the Olfaction condition was 289.0 cm (SD = 146.0; Fig 3). In the Control condition, it was 361.4 cm (SD = 153.2).
What is the maximum distance of clear vision?
A person with normal (ideal) vision can see objects clearly at distances ranging from 25 cm to essentially infinity.
How far can you see underwater in the ocean?
The range of underwater vision is usually limited by turbidity. In very clear water visibility may extend as far as about 80m, and a record Secchi depth of 79 m has been reported from a coastal polynya of the Eastern Weddell Sea, Antarctica.
Which is harder K2 or Everest?
At 28,251 feet, K2, which straddles the Pakistan-China border, is about two and a half football fields shorter than Everest, but it’s widely considered the planet’s toughest and most dangerous mountain to climb, earning the nickname “Savage Mountain.” Unlike Everest, it is not possible to “walk” to the top; all sides …
What’s the minimum altitude for an open air area?
14 CFR 91.119 – Minimum safe altitudes: General. Over any congested area of a city, town, or settlement, or over any open air assembly of persons, an altitude of 1,000 feet above the highest obstacle within a horizontal radius of 2,000 feet of the aircraft.
How many miles can you see at 10, 000 feet?
The formula for determining how many miles an individual can see at higher levels is the square root of his altitude times 1.225. Thus on a clear day at 1,000 feet a person with normal vision can see 39 miles; at 10,000 feet, 123 miles; at 25,000 feet, 194 miles.
What’s the minimum altitude to fly over congested areas?
14 CFR 91.119 – Minimum safe altitudes: General. (b)Over congested areas. Over any congested area of a city, town, or settlement, or over any open air assembly of persons, an altitude of 1,000 feet above the highest obstacle within a horizontal radius of 2,000 feet of the aircraft. (c)Over other than congested areas.
How tall do you have to be to go to high altitude?
Some people get it and some people don’t, and some people are more susceptible than others. Most people can go up to 8,000 feet (2,438 meters) with minimal effect. If you haven’t been to high altitude before, it’s important to be cautious.