PB666

Fuel is by definition the conversion of other forms of energy into energy within the bonds of atoms, so called dissociation bond energy. Even fossile fuels got the by the addition of solar derived hv to the system (and the occasional heat induced reaction form the upper mantle). All conversions lose energy as the system moves toward entropy. Thats not the issue with fuel,mthe fuel logic is energy density as a energy density. IOW you pay an entropy tax to condense energy, but the consensation of thermodynamic potentials makes the energy more useful. And example is that if you stood at the south pole in the middle of SP winter and had a thermocouple to a heat sink you could generate a current, but you could not do much, if you replaced you with the same mass of oil and a 4-stroke diesil engine the therocouple could generate alot more energy, if we replace the diesel with the same mass of hydrogen and used a fuel cell we could generate even more electricity. If we removed the hydrogen and replaced it with pure tritium and a neutron absorbing tank we coukd generate even more energy. If we replaced all that with the same mass of exotic matter . . . . . ..

When you see a bright glow in mid-daylight expanding real fast, there is a pretty good chance its too late to abort. Atlas Centaur V, moments after escape capsule flew off.

If you confine the population to a common state or nation then it is an overpopulation issue. At least technology is driving people to the big cities were employment may be easier to find, that is a technological problem of sorts. Giving each person land does not work if that land cannot support them and if they lack the skills to exploit, and if overpopulating that land means lower fertility. Couple that to climate change and risk goes up markedly. http://www.cnn.com/2016/05/05/asia/india-heat-wave-drought/index.html This is not a new theory, the very first papers published on where global warming was likely to 'raise its head' in the 90s basically said, if we look at the changes of rainfall as temperatures have risen what we see is an increased unpredictability of rainfall in regions which have pre-existing high annual variation of rainfall. And pretty much to the T we have seen increased droughts and floods in those regions. This idea has held up now for 20 years, suffice it to say its a good predictor of the future and those peoples in those areas badly affected in 2016, with increased population and increasing amplitudes in the cycle and only expect risk will increase. Flood and rain cycles don't have thirst or drown, and humans are not camels. Thus there is no systemic feedback to protect humans other than natural selection and we know how that works.

From this weeks news. http://www.bbc.co.uk/news/resources/idt-aad46fca-734a-45f9-8721-61404cc12a39 http://www.bbc.com/news/world-asia-india-36311845 http://www.bbc.com/news/world-asia-india-36299778 Technology is driving the poor to the parts of the country with the least resources to support expanding populations. As a consequence vital resources are being taxed to the limit and poisoned. Overpopulation, technological misuse and misdirection, climate change, global warming . . . . . http://www.bbc.co.uk/weather/features/36159366 Climate change = no water when you need it, too much water when you don't. Remediation means planning for water shortages and protecting against floods. It may also include impetus to move folks from unsustainable levels in the most affected areas.

This launch has everything, but its missing the SpaceX logo . . . . . . . . . . .ducking and running.

The boosters will have a built in nose piece, and the core will be reinforced at the joiners so that force can be transferred between frames. In KSP consider these to be the added weight of strut connectors. He is talking about airframe only, not tank bearing dimensions.

1300 kw at 1 AU per meter squared at 50% is 650 w per square meter. If your ion drive is 80% efficient, and you have a 5% loss between the panel and the drive, then its 3/4ths that lets say .0005 MW per meter squared. On a panel 10 time as long as wide and 2 of them you would need 2 panels 14 meters wide and 140 meters long. The estimated weight would be 3900 kilograms at best. You could have 4 at 10 meters x 100 meters. 16 at 5 meters by 50 meters. Its alot. The ISSs panels which are not as big weight 14 tonnes each.

Well china uses alot of coal to energize the production of solar panels. The easiest solution is to conserve, it also makes economic sense. And impliment carbon reducing technologies make sense. IMHO, dirty coal use in a mature economy is senseless and cost more than its worth, but it required in the steel industry, so even that policy has its bounds. I dont want to discuss carbon reduction, i think recognizing that orchestrated remediation will differentiate the successors versus the failures. Sea level rise is not just about ice melt, its often more about thermoclines, surface salinity and surface tempertures in the tropics. If you live in the Solomon Islands you are much more familiar with this than ice water flowing into the atlantic. We have another set of satellites that are tracking this. http://www.star.nesdis.noaa.gov/sod/lsa/SeaLevelRise/ TOPEX, Jason-1 and Jason-2 have tracked sea level rise in the northern Solomon islands of almost a foot since 1993. The average is about 8 cm.

Its IPAD engrish.

Super easy hull design. Find asteroid, dig hole the crossectional profile of ship, put ship in hole, put solar panel on asteroid. Need to move just use the displaced material as mass ejecta. Super crazy space sport, demolition derby with asteroid ships.

We have alot of 'may's here lately. I think they want to use three identicles just for that reason, to standardize production so they can crank out stuff.

During the eocene we were a species that wanted to be the king of the mountain, we own the mountain now, so change in the status quo does not favor us, it favors snakes desert plants and green lush things, kelp growing on submarine buildings. BTW, catastrophic damage to 1 billion homes is not doom to homo sapiens, unless of course you live in one of those homes, then your words burn ears. Have you studied the habitation patterns of northwestern Europe during the last ice age, Even a wolvering might have found normany a challenge at the LGM to Younger dryas. The period was characterized by highly episodic and repeated changes of climate, from almost normal europe like temperatures to periods best characterized by superarctic cold and dry.

Before that everyone else will pay the price https://www.theguardian.com/business/2016/may/16/climate-change-puts-13bn-people-and-158tn-at-risk-says-world-bank?utm_source=Daily+Carbon+Briefing&utm_campaign=384b6804a0-cb_daily&utm_medium=email&utm_term=0_876aab4fd7-384b6804a0-303423917 http://www.bbc.com/news/world-36299541

http://3tags.org/article/study-pinpoints-timing-of-oxygens-first-appearance-in-earths-atmosphere This tells us something about venus also, because had there been life and oxygen on Venus once, then the atmospheric sulfide would be S03, but its the mineral version S02 that constitutes its atmosphere.

http://phys.org/news/2016-05-physicists.html

You mean northwest passage for a couple of weeks every other year. The growing season in the arctic can never be more than half a year, but which year, the one with 8 feet of snow or the one with a horrific drought.. Btw, even a half meter of water would not be a welcome site in some areas . . . . Miami, west galveston, I woukd add cameroon louisiana, but is already underwater.

See thats your problem you googled it. Something does not exist until you observe google it.

Thats rather easy since for everyone here, their birthday has well past. Now if you are talking about the anniversery of their birthday, well, I think i'll take a Rolls.

They are behind schedule, they ran into a problem due to the underlying softness and compressibility of the backwater they are building into, it is by thier estimate will be 2018 before they can complete a launch sitre.

http://www.space.com/32877-tycho-supernova-expansion-continues-x-ray-radio-and-optical-time-lapse-video.html

You could have cells on one side of the lens.

Right-oh, some many threads.

Life was not designed to make oil thats an after the fact storage compound, its primary output is aldehydes and triose sugars, which are then form acetyl Coa and acetyl CoA is then concatonated to form fatty acids. Fatty acids are then used to make the all important lipid bilayer. Its a kind of wasteful process to say the least. If you were going to design a process to make fuel, the better choice is to genetically engineer an algae to make Hydrogen which as we know readily dissolves across thin membranes. Like is relatively good at Making NADPH all it needs is an electron acceptor and a decent enzyme and you have H. The lifeform isn't killed in the process, as occurs in oil production. You will have to have a hydrogen/oxygen separator.

to fully stop cosmic radiation you need a spacing between outer in inner hull, preferable several thin layers of dense material, filled with insulation impregnated with boron and non-gamma radiation absorbent. The problem with cosmic radiation is that it forms a cascade, the initial impact causes a number of particles to exist and this process can occur through random relativistic decay. So you need space for the spontaneous decay to happen and then adsorption of the lower energy particles.

https://www.sciencedaily.com/releases/2016/05/160516125345.htm