Posts Tagged ‘Journal of the British Interplanetary Society’

Egyptians Issue Polite Invitation to Musk to See that Aliens Didn’t Built the Pyramids

August 4, 2020

Here’s a rather lighter story from yesterday’s I, for 3rd August 2020. Elon Musk, the billionaire industrialist and space entrepreneur, has managed to cause a bit of controversy with Egyptian archaeologists. He’s a brilliant businessman, no doubt, but he appears to believe in the ancient astronaut theory that alien space travellers built the pyramids. He issued a tweet about it, and so the head of the Egyptian ministry for international cooperation¬† has sent him a very polite invitation to come to their beautiful and historic country and see for himself that this is very obviously not the case. The report, ‘Musk invited to debunk alien pyramid theory’, by Laurie Havelock, runs

An Egyptian official has invited Elon Musk, the Tesla and SpaceX tycoon, to visit the country and see for himself that its famous pyramids were not built by aliens.

Mr Musk appeared to publicly state his support for a popular conspiracy theory that imagines aliens were involved in the construction of the ancient monuments.

But Egypt’s international co-operation minister corrected him, and said that laying eyes on the tombs of the pyramid builders would be proof enough.

Tombs discovered inside the structures during the 1990s are definitive evidence, experts say, that the structures were indeed built by ancient Egyptians. On Friday, Mr Musk tweeted: “Aliens built the pyramids obv”. which was retweeted more than 84,000 times. It prompoted Egypt’s minister of international co-operation Rania al-Mashat to respond: “I follow your work with a lot of admiration. I invite you & SpaceX to explore the writings about how the pyramids were built and also check out the tombs of the pyramid builders. Mr Musk, we are waiting for you.”

Egyptian archaeologist Zahi Hawass also responded in a short video in Arabic, posted on social media, saying Mr Musk’s argument was a “complete hallucination”.

Hawass used to be head of their ministry of antiquities, and a very senior archaeologist. He was on TV regularly in the 1990s whenever there was a programme about ancient Egypt. And he doesn’t have much truck with bizarre theories about how or why the pyramids were built. ‘Pyramidiots – that what I call them!’ he once declared passionately on screen.

The idea that the ancient Egyptians couldn’t have built the pyramids because it was all somehow beyond them has been around for some time, as have similar ideas about a lost civilisation being responsible for the construction of other ancient monuments around the world, like Stonehenge, the Nazca lines and great civilisations of South America, Easter Island and so on. Once upon a time it was Atlantis. I think in certain quarters it still is. And then with the advent of UFOs it became ancient astronauts and aliens. One of the illustrations Chris Foss painted for a book cover from the 1970s shows, I think, alien spacecraft hovering around the pyramids.

There’s actually little doubt that humans, not aliens, built all these monuments, and that the ancient Egyptians built the pyramids for which their country’s famous. Archaeologists have even uncovered an entire village, Deir el-Medina, inhabited by the craftsmen who worked on them. This has revealed immensely detailed records and descriptions of their daily lives as well as their working environment. One of the documents that has survived from these times records requests from the craftsmen to their supervisors to have a few days off. One was brewing beer – a staple part of the ordinary Egyptians diet – while another had his mother-in-law coming round. I also distinctly remember that one of the programmes about ancient Egypt in the 1990s also proudly showed a tomb painting that at least depicted the system of ramps the workers are believed to have used to haul the vast stones into place. And the great ancient Greek historian, Herodotus, in his Histories, states very clearly that the pyramids were built by human workers. He includes many tall tales, no doubt told him by tour guides keen to make a quick buck and not to worried about telling the strict truth to an inquisitive foreigner. Some of these are about the spice and rich perfumes traded by the Arab civilisations further west. He includes far-fetched stories about how these exotic and very expensive products were collected by giant ants and other fabulous creatures. But no-one tried telling him that it wasn’t people, who built the pyramids.

On the other hand, the possibility that aliens may have visited Earth and the other planets in the solar system isn’t a daft idea at all. Anton ‘Wonderful Person’ Petrov, a Russian YouTuber specialising in real space and science, put up a video a few weeks ago stating that it’s been estimated that another star passes through the solar system once every 50,000 years. A similar paper was published by a Russian space scientist in the Journal of the British Interplanetary Society back in the 1990s, although he limited the estimated to a star coming within a light-year of Earth. That’s an incredibly small distance, and if there have been other, spacefaring civilisations in our Galaxy, they could easily jump off their solar system to visit or explore ours. We can almost do it ourselves now, as shown by projects that have been drawn up to send light-weight probes by solar sail to Alpha Centauri. In addition to the Search for Extraterrestrial Intelligence using radio telescopes to comb the skies for a suitable signal, there is also planetary SETI. This advocates looking for the remains of alien spacecraft or visitors elsewhere in our solar system. It’s advocates are serious scientists, though it suffered a major blow to its credibility with the furore over the ‘Face on Mars’. Which turned out not to be a face at all, but a rock formation as its critics had maintained.

Aliens may well have visited the solar system in the deep past, but it was definitely very human ancient Egyptians, who built the pyramids. Because, as Gene Roddenberry once said about such theories, ‘humans are clever and they work hard.’ Wise words from the man who gave us Star Trek.

Let’s go out in space to seek out new life and new civilisations by all means, but also keep in mind what we humans are also capable of achieving on our own down here.

Personal Hobby Rocket Based on NASA Mercury Capsule

June 27, 2020

A little while ago I put up a piece about a paper I had published several years ago in the Journal of the British Interplanetary Society (JBIS). This argued that as flying enthusiasts now attempt to recreate the experience of the great pioneering age of aviation by flying hang-gliders and microlight aircraft, so there is an opportunity for developing personal leisure rockets to take space enthusiasts on very short rocket trips in order to recreate some of the experience of real spaceflight. The rockets and the capsules don’t have to be very large – just enough to carry a single person or so to a height of a few thousand feet.

The problem I found when I was going through the equations for just such a vehicle is that the amount of fuel needed would make a rocket that was actually smaller than the capsule for the hobby ‘astronaut’. It would simply be impossible to follow the conventional rocket design in which the capsule stands atop the rocket, as it would simply overbalance. A few years ago I found a couple of videos from the Danish company, Copenhagen Suborbitals, who were also trying to develop their own, private spacecraft. They seemed to be trying to solve the problem by placing the rocket in front of the personnel capsule, like the arrangement of the escape tower on the manned NASA rockets – Mercury, Gemini and Apollo, which preceded the spaceshuttle.

I think the Mercury rocket would actually make a fitting design for such a small hobby rocket. They were the first American rockets which took men into space, after a series of unmanned, automated tests and then using chimpanzees. The capsules were small, designed for only one man, measuring 2 meters in diameter at their widest point, and about 3 meters tall, not counting the escape tower. The rocket that was initially used for them was the Redstone, and it was a Mercury-Redstone combination that took John Glenn in Friendship 7 on his epoch flight into space. This was a suborbital flight from one side of America to the other.

Mercury Restone rocket from The Space Traveller’s Handbook, Michael Freeman (London: Hamlyn 1979) 54.

Obviously, you don’t want a rocket as powerful as a Redstone, as even a suborbital, transcontinental trip would be too far. You’d only need an arrangement like the Mercury capsule and its escape tower. The escape towers on all the NASA manned rockets supported small, solid fuel rocket motors. If there was a problem with launch rocket, they were designed to carry the capsule to safety. Thus they were developed to take crewed capsules on the kind of very short trips of the kind that a crewed hobby rocket may also make.

Mercury capsule from the above book, page 56.

As a hobby rocket would not actually travel beyond the Earth’s atmosphere, it would not need retro-rockets and heat shield. It would still obviously need to carry a parachute, which would also still need to be above the rest of the capsule for the safety and stability of the hobby astronaut. I’m thinking of short trips that go up and straight down, with the capsule landing on its base. From the above illustrations it looks like the escape tower rocket minus its aerodynamic spike was 172 cm long and 43 cm wide. Looked at closely, it also seems that it had three nozzles arranged at equal spaces around its base, angled away from the body of the capsule to provide thrust while maintaining stability.

In addition to the problem of stability, the escape tower arrangement also poses some difficulty in that in order for the parachutes to open, the escape rocket itself must be jettisoned. This complicates the design of capsule. It struck me, however, that this could be solved if the single escape rocket was replaced by three solid rockets 572 cm long at the rear of the capsule, spaced at equal distances around its circumference in order to provide stability as shown in my sketch below.

If the rockets and their exhaust nozzles aren’t able to support the weight of the capsule, perhaps landing legs somewhat like those of the lunar module the Apollo astronauts used to land on the Moon could be added.

I’m not a rocket scientist, just an ordinary person who has read some of the science and physics involved, so don’t take this as solid fact. But I think the three rockets together would provide the same amount of thrust as a single rocket of three times the length of one of them. However, as the three rockets would fire together, the actual burn time would be shorter and so imagine it would ascend with a greater acceleration than a single, larger rocket would. But the speed reached, and thus the height after the rockets stopped firing, should be the same.

I think the design’s practical, though it would obviously have to undergo extremely rigorous tests before any aspiring hobby astronaut got anywhere near it. However, there is already a large hobby rocketry milieu. They largely fire off models rockets, but these can be quite large. One group of enthusiasts, according to the magazine High Power Rocketry, sent up a Minuteman missile one year. And last year an American built his own steam rocket which successfully took him a mile up. The man was an eccentric – he wanted to make the journey as he really believed the world was flat and wanted to see if it was round. But his rocket worked, although he lost his life making a subsequent flight. And if one man wants to make an amateur, hobby rocket flight, there are probably others. This is an idea waiting to be developed by professional aerospace technicians and engineers.

But if successful, it would create a new age of personal rocketry and interest and enthusiasm for real spaceflight, just like those flying hang-gliders and microlights are enthusiastic about conventional aircraft.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Elon Musk and Tom Cruise to Film Movie on International Space Station

June 23, 2020

Here’s another fascinating video that has absolutely nothing to do with politics. It’s from the YouTube channel Screen Rant, and reports the news that tech mogul Elon Musk and Tom Cruise are planning to film an action movie on location in space. They’re planning to use the International Space Station. Neil Lehmann, who was worked with Cruise before on previous movies, is going to be the director. And no, apparently it’s not a hoax or publicity stunt. NASA’s Jim Bridenstine has announced that the space agency is totally behind the idea, and hopes that it will inspire more people to be interested in space, and to become scientists and engineers.

There aren’t, however, any details yet regarding the movie’s title or what it will actually be about. It won’t be a sequel to Mission: Impossible nor to Top Gun: Maverick. Neither is it connected to another film set in space that starred, or was to star Cruise, Lunar Park. What is certain, however, is that it’s going to be expensive. It cost Musk $90 million to launch his $100,000 Tesla car into space. Another film-maker, Richard Garriott, also spent two weeks in space at the station, where he filmed a five minute short, Apogee Lost. NASA charged $30 million for those two weeks. The station is open to paying guests, who are charged $35,000 per night for their stay.

According to Garriott, the station isn’t the best place to shoot. Because of the weightlessness, anything not stuck down with velcro tends to float away, and he did have trouble with the sets and props he was using floating off the walls. It also gets hot up there, so the station has a multitude of ventilator fans going, whose noise may pose a problem when recording sound.

There’s also a problem in that Cruise, and everyone of the film crew who goes with him, must pass NASA’s stringent astronaut fitness tests. They also have to be proficient swimmers and pass the course on water survival as part of the rigorous astronaut training.

The film is being billed as the first to be shot in space. It isn’t that – that honour belong’s to Garriott’s, but it will be the first full-length movie shot in space. And Screen Rant says that it will be interesting to compare it with other SF films shot on Earth.

The video naturally includes clips from a number of Cruise’s movies, including Top Gun and Mission: Impossible.

I’m particularly interested in this news because I presented a paper at a meeting of the British Interplanetary Society recommending the same idea.¬†

It was at a symposium at the Society’s headquarters in London on the popular commercialisation space in September 2001. All of the talks presented were really fascinating, but the one that justly received the greatest interest and applause was on how space could be used for sport, especially Harry Potter’s school game, Quidditch. Some of the papers, including mine, were later published in the May/June 2002 issue of the Journal of the British Interplanetary Society (JBIS). The paper is quite long, so I’ll just put up the abstract:

Space exploration is the subject of intense media interest in a way unparalleled in any other branch of science. It is the subject of countless films and television programmes, both fact and fiction, many using original footage from space. Astronauts have broadcast live from the Moon, and TV journalists have travelled to Mir, similar to the use of exotic terrestrial locations for filming by professional film crews. Although prohibitively expensive at the moment, the next generation of spacecraft may lower launch costs to an affordable level, so that space locations become competitive against computer graphics and model work. The constructions of orbital hotels will create the demand for human interest stories similar to those set in holiday locations like the south of France and Italy made just after the Second World War, at a time when much tourism on foreign holidays was just beginning, aided by the development of large transport aircraft able to cater to the demand for mass flight.

Moreover, special effects and studio artificiality have been eschewed by a new generation of auteur directors in pursuit of cinema verite like the Danish Dogme ’94 group. These directors will prefer to travel to orbit to film, rather than use terrestrial studio locations and special effects. The construction of zero-gravity playrooms in orbital hotels may create new spectator sports which can only be played in low or zero gravity, necessitating sports journalists to travel into space to cover them. The lack of human-rated vehicles for the Moon and the great distance to Mars will rule these out as film locations for the foreseeable future, although journalists may well accompany colonists to Mars, and a native, Martian film industry may develop when that colony matures.¬†(p.188).

I can’t claim that Musk and Cruise stole my idea, as I doubt Musk and Cruise are even aware my article exists, let alone have read it. When I wrote the paper, NASA was testing advanced spacecraft designs using aerospike engines, which they hoped would significantly reduce launch costs. These never materialised due to the repeated failures of the spacecraft leading to the programme’s cancellation. It may be, however, that the development of Musk’s SpaceX rocket, which has just successfully carried a crew to the ISS, may lead to the emergence of further spacecraft vehicles which may do this. NASA is also is also involved in the development of landers for a possible crewed mission to the Moon. Space hotels aren’t a reality yet, but a first step towards them was made in 2016 with the addition of an inflatable section, the Bigelow Expandable Activity Module (BEAM) to the International Space Station. This was launched aboard the Spacex rocket, and was developed by the hotel magnate Robert Bigelow.

Despite the immense costs involved, I hope this movie does get made and that it inspires other film makers to use space as a location. And I also hope they do start building proper space tourist hotels and start playing and broadcasting sports in space. After all, one of the last Apollo crewmen played golf on the Moon.

And if there are other billionaire space entrepreneurs looking for a few ideas to develop, perhaps they might consider another I had, which I discussed in a previous post. I had a piece published in one of the British Interplanetary Society’s magazine’s looking forward to competitive, human-carrying hobby rocketry, similar to hang gliding and microlights in aviation. I’d be delighted to see someone start developing that.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Radio 4 Next Monday on Possible Extraterrestrial Life

March 11, 2020

Next Monday, 16th March 2020, at 11.00 AM, Radio 4’s Out of the Ordinary is covering the subject of what aliens are probably like. The programme, ‘Aliens Are the Size of Polar Bears (Probably), has this brief description in the Radio Times:

Jolyon Jenkins concludes his series by hearing from astronomer Fergus Simpson, who predicts that if aliens exist they will be living on small, dim planets in small populations, have big bodies and be technologically backward.

This looks like a different take on the question of intelligent extraterrestrial life. Way back in the 1990s some of the astronomers involved in the hunt for it, such as SETI’s Seth Shostak, considered that aliens, if they exist, would probably be small, the size of Labradors. It’s also been an assumption of the search for intelligent aliens that the universe is old enough for alien civilisations to have arisen many times over, colonising space. Simpson’s suggestion that the aliens, if they’re out there, are probably technologically backwards, sounds like a solution to the Fermi Paradox. This was first proposed by the Italian-American physicist, Enrico Fermi, and runs: if the universe is old enough to have produced intelligent aliens, then why haven’t we found any? There are several solutions to the problem. One is that they don’t actually exist. Others are that space travel may be difficult, or that aliens don’t feel any need to expand into space. Or that advanced, technological civilisations destroy themselves in catastrophes like nuclear wars before they move outward across the Galaxy. Another solution is that they’re there, but keeping very quiet in case there are other, malign intelligences out there intent on their extermination.

This last solution is explored by the SF writer Alistair Reynolds in his novels Revelation Space, Redemption Ark and Absolution Gap. In this trilogy, humanity has expanded into space, only to be threatened by an ancient extraterrestrial menace – the Inhibitors. This is a machine culture that exists solely to destroy spacetravelling civilisations. Their reason is that millions of years ago, the Galaxy suffered a prolonged series of devastating wars as different species moved out into the Galaxy to claim territory from their rivals. In order to prevent further such wars occurring, the Inhibitors embarked on a long-term campaign of eradicating such civilisations. They aren’t enemies of intelligent life per se. Indeed, the whole policy is in order to protect such life, provided it remains confined to its home planet or solar system. But once it moves out into interstellar space, it becomes a target for eradication. And the Inhibitors themselves are quiet, dormant and so undetectable, until they discover their next prey, and wake up.

If aliens do live on small, dim planets, then they’d be difficult to discover with present astronomical techniques. Planets are too small for telescopes to detect normally, as they’re lost in the glare of their star, although some may later be seen through extremely high-power telescopes using very advanced optical techniques. And the planets that have been the easiest to discover are large worlds orbiting close to their suns. They’ve been detected because their gravitational pull has caused their stars to wobble as they orbit around them. Small planets further out would exert less force, and so caused smaller wobbles that may be difficult to detect. And if they’re technologically backwards, we would not be able to detect signs of their industrial and other activities, like radio or television transmissions, for example. If spacefaring civilisations do exist, at least close to us, then we should have detected signs of them by now. There was a paper in the Journal of the British Interplanetary Society suggesting that a light sail used within 30 light years of Earth would produce so much gamma radiation that we would be able to detect it. The fact that we haven’t may mean that such civilisations don’t exist. Simpson’s suggestion for the possible nature of extraterrestrial life is therefore one solution to the problem of the Fermi Paradox.