November 2018 cmi capital blog electricity lesson plans middle school

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NASA’s Origins, Spectral Interpretation, Resource Identification, Security-Regolith Explorer ( OSIRIS-REx) will make contact with Bennu at 1200 EST or 1700 Zulu. gas examples The first image was obtained using one of the three cameras on-board the spacecraft (PolyCam) from a distance of 330 kilometers. Multiple exposures allow for estimation of rotation speed. The scientific team used a super-resolution algorithm to combine eight images and produce a higher resolution view of the asteroid. Although Bennu occupies barely 100 pixels in the detector, it is possible to identify some features on its surface, like large boulders.

The journey for the asteroid-chasing OSIRIS-REx began back in September 2016 and three years later it’s finally close enough to tag the space rock. The spacecraft is equipped with five instruments and will survey the asteroid for a year, before selecting a site to retrieve a sample. walmart with a gas station near me OSIRIS-REx won’t touch down on the asteroid, like Japan’s Hayabusa 2 did earlier this year, instead opting to drop a lower pressure blower on an retractable arm (TAGSAM) onto the surface to suck up a sample for Earth return. Instruments

The OSIRIS-REx Laser Altimeter (OLA) will provide a 3-D map of asteroid Bennu’s shape, which will allow scientists to understand the context of the asteroid’s geography and the sample location. OLA is provided by the Canadian Space Agency in exchange for Canadian ownership of a portion of the returned asteroid sample. NASA’s OSIRIS-REx spacecraft will travel to the near-Earth asteroid Bennu and bring at least a 60-gram (2.1-ounce) sample back to Earth for study.

Headlines warned of economic doom after the U.S. government released its 4 th National Climate Assessment (“NCA”). gas natural fenosa Steven Koonin takes a close look at the numbers and their impacts and concludes that the overall economic impact of human-caused climate change is anticipated to be very small indeed. We incorporate some of his comments in the commentary below. dynamic electricity examples See end of this article for relevant NCA downloads.

As has been seen, particularly in the last 20 year, predicting the impact of human-caused carbon emissions on global climate has proved to be exceedingly challenging with estimates for surface temperature increases being uncertain by a factor of three. Further estimating the economic impacts of postulated temperature changes decades into the future, simply compounds the uncertainty and takes no account of our ingenuity in mitigating the impacts.

Koonin reports that on careful examination the report’s actual numbers as distinct from the hyperbole, turn out to be far less alarming. “The final figure of the final chapter shows that an increase in global temperatures of 9 F ° (beyond the 1.4 F ° rise recorded since 1880) would directly reduce the U.S. gross domestic product in 2090, by 4%, plus or minus 2% – that is the GDP would be 4% less than it would have been absent human influences on climate”.

If we assume that the conclusion in the NCA report are correct, then it becomes obvious that the economic impact of any plausible temperature increase on the U.S or the global economy would be minimal. Indeed, any number of other impactors could have a far greater effect. For example, changes in regulations, trade, taxation, technology or external or internal conflicts could and have in the past had a far higher annual impact than the 0.05% reduction in GDP proposed by the NCA report. 9gag memes Further, a more likely scenario would be for a significantly lower temperature increase and the impact on GDP growth would be increasingly, un-measurable.

It is worth recalling the widely discredited claims made in 2006, by Nicholas Stern (the economic consultant for the British Prime Minister) when he published The Economics of Climate Change: The Stern Review, in which he wrote that if no timely actions were taken in the following decades, climate change would result in the loss of 5%–20% of global GDP. More than 10 years on and there is no evidence of his exaggerated GDP impacts. m gastrocnemius medialis The IPCC 2014 report concluded that a 5 F° rise in temperature would have a 3% impact on global GDP by 2100 – which would diminish the growth in global GDP to 385% from 400%. Even the IPCC knows that the impact of any plausible global temperature increase is minimal at best.

The media and not surprisingly the political commentary on the NCA conclusions is little more than alarmist and even based upon the author’s own conclusions, the economic impact of postulated human-induced global temperature change is likely to be un-measurable over the short and probably the long term. The global economy has little to fear from human climate impacts.

Last Saturday, BBC Radio 4 ran throughout the day with headline news about the shale-gas company Cuadrilla causing “micro-earthquakes” in Lancashire, as if the ground was trembling. electricity quiz grade 9 It wasn’t. The tremors from fracturing gas-soaked shale rock more than a mile below the surface, picked up by ultrasensitive sensors, were far too weak to be felt at the surface. electricity voltage in usa They were never going to threaten the integrity of the steel and concrete casing of the gas well itself, as some activists have since claimed.

The vibrations were tens of thousands of times less powerful than the kind of tiny earthquake that, according to the official Richter scale, “almost never cause damage”. They were smaller than the vibrations that can be routinely caused by quarrying, artillery training, mining, tunnelling, passing lorries, underground trains, geothermal wells, pile driving and building works. (Even thunder can cause seismic waves.)

British regulations say that anything over 0.5ML (local magnitude) triggers a “red traffic light”. This has been interpreted as meaning that fracking must stop for good. Not so. As the geophysicist James Verdon from Bristol University explains, when the traffic light goes red, you don’t scrap your car, you stop for a short period till the light changes, then drive on. That’s exactly how the shale-gas traffic light is designed: if there is a tremor, then the company fracking the well must pause for some hours to let further vibrations settle, before resuming work.

Britain’s threshold of 0.5 is far more sensitive than that used in other countries, such as Canada. As Francis Egan, the chief executive of Cuadrilla, points out, if any other industry had to stop work when it triggered 0.5ML vibrations, then “you’d never get a wind farm built, you’d never get Crossrail built” and many HGVs would be off the roads.

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