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Full Discussion: Climate change anyone?
The Lounge What is on Your Mind? Climate change anyone? Post 303034826 by wisecracker on Tuesday 7th of May 2019 01:25:04 PM
Old 05-07-2019
Hi Neo...
Quote:
I admire Dr. Kaku's energy and optimism and I hope he is right; that the Earth will transition from a Type 0 civilization, to a Type 1 civilization in about 100 years.
Ha ha, he jests. We will never reach the goal of Kardashev's Type 1 Civilisation, let alone even thinking about his Type II or III, (Types 0, IV and V are modern extensions).

And the so-called Warp drive of StarTrek along with 'Beam Me Up Scotty' matter transfer is pure fiction.
One can't accelerate much outside the range of 0.9G to 1.1G for half the distance we need to travel, inter-stellar wise, as we would need to decelerate at the same amount for the final half, and our closest stellar neighbour is about 4.3 light years away so any SAFE and RELIABLE journey would take, erm, a LONG time.
And we haven't even got to inter-galactic REALISTIC travel methods.

As for matter transfer, how can one guarantee EVERY particle in any one body will return to its exact position on rebuild?
If there were Types I, II or III civilisations we would be able to detect them as they would make themselves easily _visible_/_measurable_.

Climate change will put paid to any idea of colonising a barren planet like Mars as huge global conflicts will occur as military nations grab what quick and easy resources remain.

Storing all of the energy on the host planet is worlds away, (no pun), from reality as we have a core and mantle with as much energy as we would ever need, and yet we have not harnessed it in any way seriously. This alone could help combat climate change but......
Science, engineering and geo-physics are one thing, human nature is something else.
This User Gave Thanks to wisecracker For This Post:
Neo
 

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LEARN ABOUT XFREE86

xv

Xv(3X)																	    Xv(3X)

Name
       Xv - X Window System video extension

Description
       The  Xv	extension provides support for video adaptors attached to an X display.  It takes the approach that a display may have one or more
       video adaptors, each of which has one or more ports through which independent video streams pass.

       An adaptor may be able to display video in a drawable, capture video from a drawable, or both.  It translates between video encoding (NTSC,
       PAL,  SECAM,  etc...) and drawable format (depth and visual-id pair). An adaptor may support multiple video encodings and/or multiple draw-
       able formats.

       Clients use Xv(3X) to gain access and manage sharing of a display's video resources.  Typically, a client will use XvQueryExtension(3X)	to
       determine  the  status of the extension, XvQueryAdaptors(3X) to get a description of what video adaptors exist, and XvQueryEncodings(3X) to
       get a description of what video encodings an adaptor supports.

       Once a client has determined what video resources are available, it is free to put video into a drawable or  get  video	from  a  drawable,
       according  the  capabilities  supported.   Clients  can	select	to  receive events when video activity changes in a drawable and when port
       attributes have changed.

Summary of Library Functions
       The following is a summary of Xv library functions:

       XvGetPortAttribute(3X) - return current port attribute value

       XvGetStill(3X) - capture a single frame of video from a drawable

       XvGetVideo(3X) - capture video from a drawable

       XvGrabPort(3X) - lock port for exclusive use by client

       XvPortNotify(3X) - event generated when port attributes change

       XvPutStill(3X) - write a single frame of video to a drawable

       XvPutVideo(3X) - write video into a drawable

       XvQueryAdaptors(3X) - return adaptor information for a screen

       XvQueryBestSize(3X) - determine the optimum drawable region size

       XvQueryEncodings(3X) - return list of encodings for an adaptor

       XvQueryExtension(3X) - return version and revision of extension

       XvSelectPortNotify(3X) - enable or disable XvPortNotify events

       XvSelectVideoNotify(3X) - enable or disable XvVideoNotify events

       XvSetPortAttribute(3X) - set an attribute for a port

       XvStopVideo(3X) - stop active video

       XvUngrabPort(3X) - release a grabbed port

       XvVideoNotify(3X) - event generated for video processing

       Each of these functions is described in its own Xv man page.

XFree86 							   Version 4.7.0							    Xv(3X)
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