Space, the final frontier, the known universe

Wil je even gezellig kletsen of dat ene grappige (auto)filmpje delen? Dat kan hier.
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romo
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Re: Space, the final frontier, the known universe

Bericht door romo » 11 apr 2020, 20:42

'Houston, we've had a problem': vijftig jaar sinds Apollo 13
https://www.nu.nl/wetenschap/6044104/ho ... lk_wrapper

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romo
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Re: Space, the final frontier, the known universe

Bericht door romo » 03 mei 2020, 14:11

romo schreef:
19 sep 2019, 07:08
UFO`s door Amerikaanse Marine bevestigd



https://www.nu.nl/opmerkelijk/5995009/a ... iegen.html



Nu maar hopen dat het geen Chinezen zijn. :tooth:



Over die UFO`s (footage eind april officieel door Pentagon vrijgegeven) is een wetenschappelijk artikel verschenen 22-08-2019, als je het berekende energie verbruik, acceleratie-, deceleratie- en G krachten leest, dan gaan je de haren rechtop staan !


Estimating Flight Characteristics of Anomalous Unidentified Aerial Vehicles

https://www.preprints.org/manuscript/20 ... 1/download




Wat interessante quotes, voor de leesbaarheid heb ik de wetenschappelijke artikel verwijzingen er uitgehaald:

Estimated accelerations range from almost 100 g to 1000s of gs with no observed air disturbance, no sonic booms, and no evidence of excessive heat commensurate with even the minimal estimated energies.
The observed flight characteristics of these craft are consistent with the flight characteristics required for interstellar travel. That is, if these observed accelerations were sustainable in space, then these craft could easily reach relativistic speeds within a matter of minutes to hours and cover interstellar distances in a matter of days to weeks, proper time.

These unidentified craft typically exhibit anomalous flight characteristics, such as traveling at extremely high speeds, changing direction or accelerating at extremely high rates, and hovering motionless for long periods of time. Furthermore, these craft appear to violate the laws of physics in that they do not have flight or control surfaces, any visible means of propulsion apparently violating Newton’s Third Law, and can operate in multiple media, such as space (low Earth orbit), air, and water without apparent hindrance, sonic booms, or heat dumps
With acceleration estimates in hand, we obtained a ballpark estimate of the power involved to
accelerate the UAV. Of course, this required an estimate of the mass of the UAV, which we did not have. The UAV was estimated to be approximately the same size as an F/A-18 Super Hornet, which has a weight of about 32000 lbs, corresponding to 14550 kg. Since we want a minimal power estimate, we took the acceleration as 5370 g and assumed that the UAV had a mass of 1000 kg. The UAV would have then reached a maximum speed of about 46000 mph during the descent, or 60 times the speed of sound.The required power peaks at a shocking 1100 GW, which exceeds the total nuclear power production of the United States by more than a factor of ten. For comparison, the largest nuclear power plant in the United States, the Palo Verde Nuclear Generating Station in Arizona, provides about 3.3 GW of power for about four million people
The engagement lasted five minutes. With the Tic-Tac gone, the pilots turned their attention toward the large object in the water, but the disturbance has disappeared. The two FastEagles returned to the Nimitz, having insufficient fuel to attempt to pursue the Tic-Tac. On their way back, they received a call from the Princeton that the Tic-Tac UAV was waiting precisely at their CAP point. Senior Chief Day noted that this was surprising because those coordinates were predetermined and secret. Given that the CAP point was approximately R = 60 mi away, the probability of selecting the CAP point out of all the locations within the 60 mile radius, to within a one mile resolution (slightly more than the resolution of the radar system), is

Wat UAV`s presteren t.o.v. de mens en menselijke machines;
The observed UAV accelerations range from about 70 g to well over 5000 g. For comparison, humans can endure up to 45 g for 0.044 s with no injurious or debilitating effects, but this limit decreases with increasing duration of exposure. For durations more than 0.2 s the limit of tolerance decreases to 25 g and it decreases further still for longer durations .
These considerations suggest that these UAVs may not have been piloted, but instead may have been remote controlled or autonomous. However, it should be noted that even equipment can only handle so much acceleration. For example, the Lockheed Martin F-35 Lightning II has maintained structural integrity up to 13.5 g. Missiles can handle much higher accelerations. The Crotale NG VT1 missile has an airframe capable of withstanding 50 g and can maintain maneuverability up to 35 g. However, these accelerations are still only about half of the lowest accelerations that we have estimated for these UAVs.
This does not rule out the possibility that these UAVs have been developed by governments, organizations, or individuals on Earth, but it suggests that these UAVs and the technologies they employ may be of extraterrestrial origin.
Conclusions
It is difficult to draw any useful conclusions at this point. We have characterized the accelerations
of a number of UAVs and have demonstrated that if they are craft then they are indeed anomalous, displaying technical capabilities far exceeding those of our fastest aircraft and spacecraft. It is not clearthat these objects are extraterrestrial in origin, but it is extremely difficult to imagine that anyone on Earth with such technology would not put it to use. Moreover, observations of similar UAPs go backto well before the era of flight . Collectively, these observations strongly suggest that these UAVs should be carefully studied by scientists.
Unfortunately, the attitude that the study of UAVs (UFOs) is “unscientific” pervades the scientific community, including SETI (Search for Extraterrestrial Intelligence), which is surprising, especially since efforts are underway to search for extraterrestrial artifacts in the solar system, in particular, on the Moon, Mars, asteroids, and at Earth-associated Lagrange points. Ironically, such attitudes inhibit scientific study, perpetuating a state of ignorance about these phenomena that has persisted for well over 70 years, and is now especially detrimental, since answers are presently needed.

Iemand die 0-200 km/h nog interessant vindt? :tooth: :lol:

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///Joost
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Re: Space, the final frontier, the known universe

Bericht door ///Joost » 03 mei 2020, 20:22

Laten we hopen dat ze niet in grote getale hier een kijkje komen nemen, want historisch gezien qua invasies in het algemeen hebben we dan de kansen tegen.

Dan kan zelfs die mafklapper uit Noord Korea ons niet meer helpen.

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