Japanese Startup Wants To Rain Down Man-Made Meteor For Tokyo Olympics (sciencealert.com)
A startup called Star-ALE wants to create a man-made meteor shower over the city of Tokyo for the 2020 Olympics opening ceremonies. The pyrotechnics show, Star-ALE says, will be visible from an area 200km across Japan, and the pyrotechnics will actually shower from space. Starting next year, Star-ALE will begin sending a fleet of microsatellites carrying 500 to 1000 specially-developed pellets that ignite and intensely glow as they re-enter the earth's atmosphere. ScienceAlert reports: But wonderment comes at a cost, and in this case, that cost isn't cheap. Each combustible pellet comes in at about $8,100 to produce, and that's not including the costs involved in actually launching the Sky Canvas satellite. The company has tested its source particles in the lab, using a vacuum chamber and hot gases to simulate the conditions the pellets would encounter upon re-entering Earth's atmosphere. In its testing, the particles burn with an apparent magnitude of -1, which should ensure they're clearly visible in the night sky, even in the polluted skyline of a metropolis like Tokyo.
It saddens my heart to see the billions spent on these sporting events that today have nothing to do with the spirit of the events but everything to do with bolstering ego's of politicians and piss away money. Imagine if this kind of money was used to build infrastructure, provide solutions for clean water and food where needed, I imagine that would be a world less stricken by suffering, poverty and war. It would be a world with fewer refugee crisis as people generally like to live where thwy were born, and if the resources for a decent life existed migration would be for the few adventurous souls rather than for the suffering masses... wake up!!!
Earth could be headed for "hard times" in terms of incoming fragments, bolides, comets, and other giant dead space things, both solar and galactic. Why not open those panels of our social camera obscurae?
Even if these possible events are lifetimes away (which they may or may not be, not like anybody can say for absolutely sure -- hence why there are pleas for public funding to become better equipped to detect and to prevent collisions with near-Earth objects) this light show doesn't have to actually represent that eventuality in order to carry the same deeper, human meaning.
I'm sure there are many reasons why many people feel pre-apocalyptic stress disorder, what with everything going on in the news today. Something like this is bound to ring true with just about every generation that's managed to still be alive today. You could light the atmosphere on fire with numerous atomic warheads and there are dwindling numbers of people who would have any immediate qualms with it.
More power to 'em, whoever the fuck they are.
"Stratigraphically the origin of agriculture and thermonuclear destruction will appear essentially simultaneous" -- Lee
I made the above comment in good faith, as I did with a similar comment elsewhere in this thread. Both are at -1.
The effect of hosting the Olympics on Greek debt has been widely reported.
http://www.bloomberg.com/news/articles/2012-08-02/how-the-2004-olympics-triggered-greeces-decline
http://www.news.com.au/sport/sports-life/a-dark-olympic-legacy-for-greece/news-story/8dcf6d1e8df9fe2e0f93ff12e74b1b72
Furthermore, there are economic studies in the US that show that public subsidies for sports venues aren't worth it.
http://www.wsj.com/articles/use-of-taxpayer-money-for-pro-sports-arenas-draws-fresh-scrutiny-1425856677
My comments are supported by plenty of research on these topics. There's no good reason why my posts were modded down. I'm not sure why I bother trying to make good posts if moderators are going to downmod them to -1 where most people won't see them. I can only assume I was modded down because someone disagreed with my posts, which is a blatant abuse of moderation.
What could possibly go wrong?
Why is this post at -1? These are legitimate issues that have been raised by many people.
I'll again cite this article: http://www.news.com.au/sport/sports-life/a-dark-olympic-legacy-for-greece/news-story/8dcf6d1e8df9fe2e0f93ff12e74b1b72.
The article notes that Sydney fared much better with the costs of hosting the Summer Olympics because they had plans to continue using the venues they built, even after the Olympics were over. They brought in additional revenue which helped to offset the costs. The Olympic Stadium in 1996 was Turner Field in Atlanta. That stadium is now being replaced, but the Braves have played there for 20 years. That hasn't happened in Athens, where those venues were built at a similarly large price tag but have subsequently sat vacant.
In the case of the World Cup, Qatar is using migrant workers, who have awful working conditions, to build numerous stadiums in the desert for the 2022 World Cup. Many of these stadiums won't long term uses. It would have been far better to choose the primary competing bid from the United States, which has more than enough stadiums to host the World Cup. No additional venues would be built to host the World Cup in the US; we would use what we already have. It's a far less costly solution and one that produces far less waste and has much less environmental impact.
There's no good reason for the above post to be at -1. I can only assume it was modded down because someone disagreed. That's an abuse of moderation. Too often, posts that get modded down incorrectly don't get modded back up and people don't see them. Why bother making good comments when abusive moderators are going to mod them down?
should ensure they're clearly visible in the night sky, even in the polluted skyline of a metropolis like Tokyo.
Unless it's cloudy.
politicians are like babies' nappies: they should both be changed regularly and for the same reasons
Yeah, I reckon the dear leader will totally love such a display of imperialist pig-dog aggression against the prosperous & peaceful people's republic.
Confucius say, "Find worm in apple - bad. Find half a worm - worse."
One thing that bugs me about this summary:
At orbital velocity (LEO) an object has a potential energy of around 30MJ per kilogram, an energy density higher than ethanol. Black powder, by contrast (common in fireworks) has 1/10th that energy density. The various colours, with the exception of white, are generally from rather weakly combusting compounds. There's a lot more energy to be had for producing "glow" from the orbital energy rather than whatever they want to burn to produce a coloured glow. And the colour of the thermal radiation from reentry will depend on the surface temperature, and that's customizeable for red, orange, yellow, and white (no green, blue or purple, though) just through simple blackbody emission, customizeable if specific ions are being ablated that tend to radiate in certain bands. The blackbody colour can be varied over the course of reentry by changing the drag coefficient as the surface ablates.
Perhaps "combustion" is the wrong term, perhaps they're just talking about ablation?
Honestly, you don't need special pellets to make a neat fireworks display, rockets can do that themselves ;) In fact... hmm... now that I think about it, the most cost-efficient way to get strange atmospheric effects might be barium clouds. They only require sounding rockets, the glow comes from the below-horizon sun itself, they show effects of the solar wind on the atmosphere (sort of like artificial auroras), and are often mistaken for UFOs and can look like slow fireworks when they expand.
Friends! Help! A guinea pig tricked me!
Project Thor https://en.wikipedia.org/wiki/... got commercialized?
Artificial meteors? They can call me if they need help on where to aim them.
Don't waste your vote! Vote for whoever you want, unless you live in a swing state it won't matter anyways
Particularly if it's cloudy. Pun intended
Website Just Down For Me? Find out
After the Charlie Foxtrot that Brazil is going to be, I think just providing basic sanitation, clean water, and a reasonable crime rate would be plenty to offer...
Browsing at +1 - no ACs, I ignore their posts. So refreshing!
If it's cloudy, they can probably just not do it.
Cool pellets, what do they do? They drop from space and burn. How much do they cost? Each pellet costs $8,100. Fuck those pellets!
that's exactly what we need, more junk in the lower orbit in space.. Better just pocket the money and use it to try and suppress the polution over tokyo itself..
Seems to me they had 2 large "meteor" like objects during the 40's that wiped out a couple towns. You would think they wouldn't want anything falling from the sky towards their towns town. What's next? Godzilla!
It is easy enough to Google-up the actual website of the company doing this, rather than rely on third-hand journalist summaries. They describe in reasonable detail how their scheme works.
They are using pellets containing different elements to produce different colors as the pellets vaporize and ionize on re-entry. They do refer to the pellets "burning up" (just as we do for meteors), but never combustion.
Second class citizen of the New Gilded Age