Results: This is survey 3 about time, distance, speed, gravity and some of that Albert Einstein stuff. This will be the final one (from me anyway).
Published on 02/23/2024
If you like Sci-Fi movies you may have discovered that many of them ignore the laws of physics, otherwise movies could be pretty boring. Our ability to travel through space faces major obstacles because of Einstein and the inconvenient formula he came up with when he was only 26. E=MC2 (energy is linked to mass and the speed of light) means a tiny particle of matter can create a vast quantity of energy, the basis of nuclear power. He also showed that gravity and motion can affect time. Here are some ways E=MC2 restricts space travel (for humans).
QUESTIONS
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1.
1.
Time does not always pass at the same speed. Gravity affects time. Here are some facts about that. Which ones do you find interesting
Albert Einstein's theory of general relativity predicts that where gravity is stronger, time passes more slowly.
30%
658 votes
The closest area to Earth's core (and with the highest gravity) is the Challenger Deep at almost 36,000 feet. The highest (and lowest gravity) point is Mt Everest at a height of 29,000 feet.
22%
494 votes
Time passes more slowly in the Challenger Deep than it does at the top of Mount Everest.
19%
425 votes
Astronauts in orbit around Earth age more slowly that those on the ground. Scott Kelly in space and his identical twin on the ground tested this theory.
29%
633 votes
Even if one escapes Earth gravity, other planets and stars exert gravity however time does not stop, even if there is no gravity. Gravity merely dilates time.
19%
411 votes
Although time passes more slowly in space, the huge gravitational pull of a black hole speeds up time.
20%
439 votes
Other (please specify)
1%
21 votes
Not Applicable
42%
933 votes
- They must be able to.
- no
- yes
| Other Answers | Percentage | Votes |
|---|---|---|
| 0.45% | 14 | |
| unsure | 0.03% | 1 |
| who cares? | 0.03% | 1 |
| Whatever more could be said about the topic, I could find it interesting if presented in an engaging manner. | 0.03% | 1 |
| Gravity causes lovely breasts to sag. | 0.03% | 1 |
| past this | 0.03% | 1 |
| because you age more slowly does not mean your time alive has been shortened.. | 0.03% | 1 |
| How they just 'got through the Van Allen Belt (frought with asteroids) | 0.03% | 1 |
2.
2.
Einstein used relativity to show that as you approach the speed of light times beats slower, space contracts and you get heavier. Here are some implications from that. Which do you find interesting?
The faster you move the heavier you get. The tiny atomic particle called a neutrino, travelling at the speed of light, has sufficient mass that it passes right through us and the earth without us being aware of it..
26%
582 votes
In order to escape Earth's gravitational pull (1G) you have to be able to travel at 11kms per second or 25K MPH.
20%
447 votes
Most of us can withstand up to 4-6G. Fighter pilots can manage up to about 9G for a second or two. But sustained G-forces of even 6G would be fatal. Astronauts endure around 3G on lift-off, one G of which is Earth's own pull.
21%
465 votes
Earth is spinning "clockwise" at approx 1,000MPH. (faster at the equator than at the poles). If this rotation stopped even for a second, we would also begin travelling at 1,000MPH as would any un-tethered object. We wouldn't know what hit us.
27%
603 votes
If warp drive existed and we accelerated to light speed almost instantly we would resemble a pancake just as fast (unless we can turn off E = MC2).
17%
377 votes
Other (please specify)
1%
21 votes
Not Applicable
45%
996 votes
- Yes in a BMW
- no
- yes
| Other Answers | Percentage | Votes |
|---|---|---|
| 0.68% | 17 | |
| unsure | 0.04% | 1 |
| It seems unhealthy, to say the least. | 0.04% | 1 |
| all oif the above | 0.04% | 1 |
| I haven’t thought about this until now | 0.04% | 1 |
3.
3.
The sheer scale of the universe and even our solar system can be quite daunting. Which of the following examples do you find interesting?
If the solar system was scaled down and the Earth was the size of a golf ball, the sun would still be 15kms (9 miles) away.
24%
537 votes
If the solar system was scaled down and the Earth was the size of a golf ball, the nearest star would still be 1,600kms (1,000 miles) away.
24%
530 votes
If the solar system was scaled down and the Earth was the size of a golf ball, Mars would still be half a mile away.
24%
527 votes
The light from our nearest star (other than the sun) Proxima Centauri takes 4.25 years to reach us.
30%
654 votes
Other (please specify)
1%
13 votes
Not Applicable
47%
1040 votes
- I hope the capsule wasn't made on a Wednesday.
- I'll pass.
- There must be water on Mars--and maybe human-like people.
| Other Answers | Percentage | Votes |
|---|---|---|
| 0.53% | 12 | |
| unsure | 0.04% | 1 |
4.
4.
Here are some additional thoughts on these subjects. Which do you find interesting?
if you had a spaceship capable of reaching 99% of the speed of light, the maximum rate of acceleration your body can withstand in order to get to that speed would be around 2G. It would take 11 months to get to 99% of the speed of light, and the same amount of time and energy to slow back down again.
21%
463 votes
At 99% of the speed of light there better be nothing between you and your destination because if you hit anything it's "lights out."
25%
547 votes
The nearest star is about 4.3 light-years away. The round trip would take at least 8.6 years. No astronaut is likely to commit to this. Space travel beyond Mars will probably require huge spaceships that are self sustaining and can accommodate entire family units.
25%
547 votes
At 99% of the speed of light, when 1 day on earth has elapsed, only approx. 4 hours has passed in the spaceship. The trip to the nearest star would not be full speed all the way but when you returned 8.6 years later, 50 years would have passed on Earth.
26%
582 votes
Other (please specify)
1%
20 votes
Not Applicable
48%
1047 votes
- 3 weeks drive to Mexico and 4 weeks back.
- 2 weeks
- 2 days driving
| Other Answers | Percentage | Votes |
|---|---|---|
| 0.79% | 17 | |
| unsure | 0.05% | 1 |
| not into science. After all it is not exact. | 0.05% | 1 |
| Battlegrounds/ flights happening where enemies think differently than humans? | 0.05% | 1 |
5.
5.
There are some movies that do a more reasonable job of adhering to the laws of physics. Of the following, which ones have you seen?
"Interstellar" deals with the realities of space time.
5%
111 votes
"Planet of The Apes" shows how time on a spaceship versus time on Earth can create unforeseen consequences.
18%
404 votes
"2001 A Space Odyssey" showed what adaptations spaceships might need to be viable transport
12%
273 votes
"The Martian" outlined what unforeseen problems might be faced and how human ingenuity might solve them.
9%
194 votes
"Gravity" showed how we better get a handle on space debris and stop adding to it.
8%
180 votes
"Moon" is a lesser known movie but it praised by the scientific community as a realistic depiction of life in space.
3%
64 votes
Other (please specify)
1%
32 votes
Not Applicable
43%
942 votes
- Planet of the Apes
- Space Jam (Jordan)
- none
| Other Answers | Percentage | Votes |
|---|---|---|
| 0.87% | 11 | |
| all of the above | 0.24% | 3 |
| all the above | 0.16% | 2 |
| all of them ! | 0.08% | 1 |
| Several of the above | 0.08% | 1 |
| Your survey only allows one choice. I have seen 5 of them. | 0.08% | 1 |
| Why am I not able to select all of these cause I have seen them. | 0.08% | 1 |
| It won't allow me but I have seen movies 2 - 4. | 0.08% | 1 |
| All of the above - the survey only allowed one choice. | 0.08% | 1 |
| Several of tgese | 0.08% | 1 |
| All but 'Moon". | 0.08% | 1 |
| can't click multiple answers, I have seen 2001 & The Martian | 0.08% | 1 |
| All of the above since I can not pick the ones I have actually seen | 0.08% | 1 |
| Planet of the apes, 2001 A space Odyssey | 0.08% | 1 |
| ALL OF THEM | 0.08% | 1 |
| all of the above except Moon | 0.08% | 1 |
| All them | 0.08% | 1 |
| I've seen at least two of those listed. | 0.08% | 1 |
| All of these | 0.08% | 1 |
COMMENTS