0
To determine the walking speed of a man on Mercury, we need to consider what apparatus and attire will be encumbering him or her, and also the effect of reduced gravity.
Of course, it would be impossible for our walker to carry all of the oxygen required for such an operation (let alone food supplies), so we will have to assume the existence of a support vehicle or vehicles capable of regularly resupplying the walker with oxygen tanks and supplies. Even then, we must assume our walker is at all times considerably encumbered by breathing apparatus. But given that in the future, oxygen tanks might be composed of very lightweight materials, let us say that this encumbrance imposes on average only a 5% penalty to walking speed.
A pressure suit will further encumber the intrepid explorer, though we might allow that advances in materials technology between the present day and the early colonisation of Mercury could all but eliminate this as a factor, so let us suppose that attire imposes only a further 5% penalty to walking speed.
Walking speed is thought to vary as the square root of g (the acceleration due to gravity), which in the case of Mercury results in a walking speed of 0.605 times the walking speed on Earth.
Taking all three factors into account, we obtain an estimate that the typical walking speed of our astronaut will be 0.546 times their typical unencumbered walking speed on Earth.
We can suppose that the individual is both reasonably tall and extremely fit, from which we could suppose an Earthbound typical walking speed of 6.5 kph (greater walking speeds are of course attainable but are unlikely to be sustainable), and multiplying our two figures results in a sustainable walking speed on Mercury of 3.55 kph.
Whilst the number of hours per Earth Day at which such a walking rate could be sustained over a very long period is debatable, given that the surface of Mercury is hardly an ideal hiking environment it seems reasonable to limit our walker to 12 hours walking per Earth day.
This results in a typical progress of 42.6 kilometres per Earth day, and taking the circumference of Mercury to be 15,329 km, we arrive at a figure of just under 360 Earth days for a circumnavigation.
Of course, such an endeavour would be entirely impossible unless the walker was able to walk fast enough to follow the Mercurial twilight, since daytime temperatures are enormously too hot for human existence, and night-time temperatures enormously too cold.
Since the the Mercurial day lasts approximately 176 Earth days, we must conclude that the endeavour is sadly impossible, the walker's speed being less than half of that required to avoid freezing or burning to death within days.
What else can I help you with?
Who tried to fly around the world at the equator?
American aviator Steve Fossett attempted to circumnavigate the Earth at the equator in the GlobalFlyer aircraft in 2005. He successfully completed the journey, setting a world record for the longest nonstop flight in aviation history.
Can a plane fly around the world in an hour?
In theory, any plane can fly around the world in an hour, regardless of size or speed. It depends on your definition of 'around the world'. No existing plane can do this at the equator. But any plane can fly along a line of latitude that has the same full length as the distance the plane can fly in one hour. The faster the plane, the farther from the poles its lines of latitude will be.
What happens as planes fly over the equator?
As planes fly over the equator, they are still subject to the laws of physics and aviation. However, there may be some minor adjustments made by the pilots to account for the slight variations in the Earth's rotation and the Coriolis effect at the equator. Overall, the flight experience for passengers remains largely unchanged.
The path of a plane flying due North from a spot on an equator would appear to fly which way?
It would appear to fly east based on the Coriolis effect.
How long an airplane reach mars from earth?
An airplane, by definition, flies in the air, it does not fly in outer space where there is no air. So an airplane cannot fly from Earth to Mars. That requires a spaceship. With current technology, a spaceship might reach Mars in about a year. It's a long trip.
If you leave on a jet and fly around the earth how long will it take to get back to the starting point?
It depends on hov fast you are travalling, considering that the circumference of the earth at the equator is 24,901.55 miles (40,075.16 kilometers).
Who was the first person to fly around the world on the equator?
Amelia Earhart
Do planes fly uphill from the poles to the equator?
No. Planes fly horizontally, but the concept of horizontal depends on the direction of gravity. Gravity pulls towards the center of the Earth, so "down" at the poles is the same as "down" at the equator, i.e. towards the center of the Earth.
How long would it take to fly around the earth at 500 miles per hour?
About 50 hours.
What was goal of Amelia Earhart's quest?
To fly around the world as near as possible to equator.
What did Amelia Earhart Attemped to do?
She attempted to fly around the world as close to the equator as she could.
Who tried to fly around the world at the equator?
American aviator Steve Fossett attempted to circumnavigate the Earth at the equator in the GlobalFlyer aircraft in 2005. He successfully completed the journey, setting a world record for the longest nonstop flight in aviation history.
How long would it take to fly nonstop around the world in a Concorde?
The cruising speed of the Concorde was mach 2.04, or about 1552 miles per hour. Assuming that you are referring to a non-stop flight around the equator, it would take a Concorde about 16 hours to fly around the world at that speed, ignoring weather, actual range, and the rotation of the Earth.
What was Amelia earthart's ultimate goal in life?
It was to fly around the world as near to the equator as possible.
What was Amelia Earharts ultimate goal in life?
To become the first woman to fly around the world
Do asteriods fly?
Not exactly, but they sort of "fly around" in space. In fact, they move in orbits around the Sun, just as the Earth does.
Why does the ISS fly in a north and south flight pattern instead of flying around the earth laterally?
Any orbit of the Earth must have its center at the Earth's center. So there are two choices for any Earth satellite: -- Orbit above the equator, never crossing any land that isn't on the equator, and never visible to people who aren't located close to the equator, or else -- revolve in an orbit that's inclined to the equator, sooner or later crossing every point on Earth that lies within the N/S latitudes equal to its inclination, and eventually visible to the majority of Earth's population. A satellite can't, for example, orbit entirely above the Tropic of Cancer, or the Arctic Circle. It must either cross the equator twice in each orbit, or else stay permanently above the equator.
