Latest By
Category:
Armor
Artificial
Intelligence
Biology
Clothing
Communication
Computers
Culture
Data Storage
Displays
Engineering
Entertainment
Food
Input Devices
Lifestyle
Living Space
Manufacturing
Material
Media
Medical
Miscellaneous
Robotics
Security
Space Tech
Spacecraft
Surveillance
Transportation
Travel
Vehicle
Virtual
Person
Warfare
Weapon
Work
"In WWII, they had a saying that there are no atheists in foxholes. I think the modern equivalent of that is that there are no jaded, bored people in the high-tech industry, in the land of really good hardcore geeks."
- Neal Stephenson
 |
| Weightlessness | ||
| The state experienced in free fall; a space traveler's weight is apparently reduced to zero. |
In the novel, Verne correctly predicts that the three men traveling in a projectile to the moon would experience a weightless state. Being a formidable writer, he does a great job of describing it!
| Barbicane clearly explained the consequences to his traveling companions, which greatly interested them. But how should they know when the projectile had reached this neutral point situated at that distance, especially when neither themselves, nor the objects enclosed in the projectile, would be any longer subject to the laws of weight?
Up to this time, the travelers, while admitting that this action was constantly decreasing, had not yet become sensible to its total absence.
But that day, about eleven o'clock in the morning, Nicholl having accidentally let a glass slip from his hand, the glass, instead of falling, remained suspended in the air. "Ah!" exclaimed Michel Ardan, "that is rather an amusing piece of natural philosophy." And immediately divers other objects, firearms and bottles, abandoned to themselves, held themselves up as by enchantment. Diana too, placed in space by Michel, reproduced, but without any trick, the wonderful suspension practiced by Caston and Robert Houdin. Indeed the dog did not seem to know that she was floating in air. The three adventurous companions were surprised and stupefied, despite their scientific reasonings. They felt themselves being carried into the domain of wonders! they felt that weight was really wanting to their bodies. If they stretched out their arms, they did not attempt to fall. Their heads shook on their shoulders. Their feet no longer clung to the floor of the projectile. They were like drunken men having no stability in themselves. Fancy has depicted men without reflection, others without shadow. But here reality, by the neutralizations of attractive forces, produced men in whom nothing had any weight, and who weighed nothing themselves. Suddenly Michel, taking a spring, left the floor and remained suspended in the air, like Murillo's monk of the _Cusine des Anges_. The two friends joined him instantly, and all three formed a miraculous "Ascension" in the center of the projectile. "Is it to be believed? is it probable? is it possible?" exclaimed Michel; "and yet it is so. |
| From From the Earth to the Moon,
by Jules Verne. Published by Various in 1867 Additional resources -
|
However, Verne wrote that the men would only achieve a state of weightlessness at the point in the journey where the Earth's gravitational pull and the moon's pull canceled each other out. And, as we know, even shuttle astronauts in orbit a mere 250 miles from the Earth experience weightlessness.
Astronauts in orbit are still subject to Earth's gravity; but they (and the space craft) are constantly falling toward the Earth and thus are weightless. More recently, the term microgravity has been used to describe the weightless state in an orbiting spacecraft. Physicists note that orbiting astronauts experience tidal forces because the gravitational force varies infinitesimally over the distance from head to toe (when pointing straight away from the Earth). Also, if the orbit is low enough to encounter even the slightest amount of atmosphere, the drag on the spacecraft will provide a slight deceleration due to friction.
In 1638, The Man in the Moone by Bishop Francis Godwind, was published posthumously. It contains what appears to be the first account of the concept of weightlessness.
Comment/Join this discussion ( 3 ) | RSS/XML | Blog This |
Additional
resources:
More Ideas
and Technology from From the Earth to the Moon
More Ideas
and Technology by Jules Verne
Tech news articles related to From the Earth to the Moon
Tech news articles related to works by Jules Verne
Weightlessness-related
news articles:
- Weightless Science Attracts Students
| Dream Of Building Your Own Rocket? |
| Used Dragon Cargo Spacecraft Will Fly Again |
| Laser-Powered Spacecraft To Explore The Solar System |
| SKYLON Space Plane Gets Boost |
Want to Contribute an
Item?
It's easy:
Get the name of the item, a
quote, the book's name and the author's name, and Add
it here.
| <Previous | Next> |
|
|
|
Technovelgy (that's tech-novel-gee!) is devoted to the creative science inventions and ideas of sf authors. Look for the Invention Category that interests you, the Glossary, the Invention Timeline, or see what's New.
|
'CIC uses [it] to keep track of every bit of spatial information that it owns...'
'With one fluid motion, it surged forward, plunged, and was gone.'
'Its lines wavered, flowed, and then painfully reformed. For an interval, the device struggled with itself...'
'The program raced up the screen one scan line at a time, subtly smoothing, deleting and coloring.'
'The death penalty was his immortality, and he would vote the death penalty for any crime at all.'
I can't resist science-fictional elements. Especially when they're real.
'The heart of it was a vast hexagonal structure of welded metal, ten miles across...'
