Space
What would happen if you jumped off the International Space Station
Most skydivers jump off a plane flying 3.8 km above the ground. But imagine jumping off something even higher, like the International Space Station.
Unless you have a supersuit like Tony Stark, it’s not gonna end well. But let’s pretend Iron Man lends you one.
Ok, ready? 3 … 2 … 1 … Jump!
That’s right, you wouldn’t fall straight down. In fact, it’ll take you at least 2.5 years before you reach the surface. So what’s going on?
According to businessinsider.com, height isn’t the main reason your fall takes so long. In fact, if you fell like a normal skydiver, it would only take about 2 hours.
But the thing is, you don’t fall straight down. You fall into orbit. The reason is speed. You see, the ISS might be called a station, but it’s hardly stationary. It’s actually moving 12 times faster than a jet fighter.
If you shot anything at that speed on Earth, by the time it was about to hit the ground, it would miss! In the same way, the ISS isn’t floating in space, it’s falling towards Earth and missing!
And when you jump off the ISS, you’re initially moving at that same speed. So you end up in orbit, too — at least for a while.
Now, even though it’s so high up, the ISS is pushing through a very thin atmosphere. And that friction slows it down. So the station fires engines to maintain speed and keep from crashing into the Earth.
But sadly your supersuit doesn’t come with engines strapped to your feet. This has two consequences:
First, it means you can’t maneuver and have to hope that any of those 13,000 chunks of space debris don’t impale you. Second, without rockets to maintain your speed, you’ll slow down and spiral toward Earth.
But it won’t be quick. The Chinese space station Tiangong 1, for example, about 2 years to fall out of orbit. On the ISS, you’re higher up, so you’ll take roughly 2.5 years. But once you strike the atmosphere, your long wait is over. And it’s go time.
As you re-enter, you have one goal: slow down. You’re traveling at hypersonic speeds. So, if you deployed a parachute now, it’ll shred to pieces.
And that’s not the only problem. Falling through the atmosphere at such break-neck speeds generates a lot of pressure on your suit — at least 8Gs of force — that’s 8 times the gravity you feel at sea level.
And if you’re falling feet first, that’ll push the blood away from your brain and toward your feet. So you’ll probably pass out unless you’re one of those fighter pilots who train to withstand up to 5Gs.
Now, if you don’t pass out, you may worry about the freezing temperatures up here. But, it turns out, your suit’s more likely to melt than freeze. You know how you can warm your hands by rubbing them together?
Now imagine your supersuit rubbing against air molecules in the atmosphere at least 6 times the speed of sound. You’ll heat up to about 1,650 ºC — hot enough to melt iron!
In fact, the heat is so intense, it strips electrons from their atoms forming a pink plasma around you that will ultimately destroy suit.
If that’s not enough of a problem, the drag will rip off your limbs. But thankfully, Tony Stark has your back, and somehow, your supersuit holds with you intact.
At 41 km up you’ve now reached the world record for highest skydive. In 2014, Alan Eustace wore a pressurized space suit as he rode a balloon up to this height. He broke the sound barrier on his way down before deploying his parachute and landed about 15 minutes after the drop.
But you’ll be falling much faster than Eustace — about 3 times the speed of sound. So, in reality, you’re not going to slow down enough to safely deploy your chute. That’s where Iron Man can help us one last time. By 1 km up you’ve reached the territory of ordinary skydivers who don’t need fancy suits to survive.
And at this point, your parachute can do its thing. And it’s finally time to land softly.
A former US Air Force fighter pilot asserts that he has deciphered
the method behind the extraordinary maneuvers of UFOs, reports dailystar.co.uk.
Over
the past two decades, numerous military encounters with these enigmatic
crafts have been reported, prompting a significant investigation by the
Pentagon.
One of the most renowned sightings occurred during the
USS Nimitz encounter, where fighter pilots witnessed a UFO descending
from 28,000 feet to just above sea level in less than a second.
This
astonishing movement would imply that the craft reached a staggering
speed of 19,000 miles per hour, a velocity that would be fatal to any
human pilot.
According
to Chris Lehto, a former USAF pilot, the craft exhibits two key
characteristics: it moves without inertia, essentially lacking weight,
and it accelerates at an incredibly rapid pace without affecting its
surroundings.
Image: NATO Allied Air Command/Facebook
Chris
believes that the explanation lies within a technology that seems
straight out of science fiction. He proposes that the answer to the UFO
enigma lies in the Alcubierre Drive, a theoretical interstellar engine
conceptualized by Mexican physicist Miguel Alcubierre in 1994.
The
Alcubierre Drive employs a form of “space warp” technology, reminiscent
of what has been depicted in episodes of Star Trek. By bending space, a
craft inside a “warp bubble” could potentially travel at or even
surpass the speed of light without violating the known laws of physics.
While
the Alcubierre Drive remains a hypothetical concept with challenges to
overcome, Chris notes that the required energy is no longer believed to
be unattainably large.
Patents
filed with the US patent office outline the potential workings of the
drive, as well as another groundbreaking technology theorized by
American aerospace engineer Salvatore Pais.
Pais suggests that
high-powered rotating magnets could theoretically eliminate an object’s
inertia, and he has filed a patent for a starship based on this
principle.
However, Chris maintains skepticism regarding Pais’
theory. He explains that while Pais’s patent applications for the US
Navy attracted attention for their potential energy-related
applications, doubts have been raised about their feasibility. There is
speculation that they may be scams, pseudoscience, or disinformation
intended to mislead adversaries of the United States.
Alternatively,
rival theories propose that the “Tic Tac” UFO is a classified Pentagon
project testing similar advanced technologies discussed by Chris.
Scientists say they have found evidence of a new Earth-like
planet that has suddenly appeared in our Solar System and is orbiting
the Sun.
Physicists, including those from the National Astronomical Observatory
of Japan, said the planet is likely to be the mysterious ‘Planet Nine’
that was hypothesised to exist in the far outer edges of the Solar
System.
Several studies in the past have suggested there is likely an
undiscovered planet beyond the Kuiper Belt – a stellar disk of materials
such as asteroids, space rocks, comets around the Sun in the outer
Solar System past the orbit of Neptune.
Independent.co.uk reports: In the new research, published recently in The Astronomical Journal, scientists
found that some of the objects in the Kuiper Belt behave in a way
indicative of the presence of a small planet among them.
One such object, they said, is about 500 astronomical units (AU) from
the Sun, where 1 AU is the distance between the Sun and the Earth.
In comparison Neptune is at a distance of 30 AUs from the Sun.
Some of these were also found to have “odd” orbits suggesting they
are being pull by the gravity of a cosmic entity larger than those that
typically influence such objects.
Computer simulations run by the scientists indicate that the most
likely explanation for the observations was another hidden planet in the
Kuiper Belt.
“We predict the existence of an Earth-like planet,” researchers wrote in the study.
“It is plausible that a primordial planetary body could survive in
the distant Kuiper Belt as a Kuiper Belt planet (KBP), as many such
bodies existed in the early solar system,” they added.
If such a planet exists, researchers say it would have a mass about
1.5 to 3 times that of Earth with an inclination of about 30 degrees.
They say the theorised planet’s orbit would likely place it between 250 and 500 AU from the Sun.
Researchers say the discovery of such a planet close to the Kuiper
Belt can unravel new constraints on planet formation and evolution.
“In conclusion, the results of the KBP scenario support the existence
of a yet-undiscovered planet in the far outer solar system,” scientists
noted.
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