Sirs: >> The "best" unit for TV screen area (size) is the coherent SI unit "meter >> squared." > Flat screens of area about 1 m^2 and larger are already quite common. While my input may be considered 'OFF issue', since TV sets are generally for 'reasonable room sizes' and electronic gadgets like: cameras, video cameras, computers, DVD players GPS monitors and television sets. The "metre squared" is the preferred quantity, its expression in day-to-day applied use might defeat the very purpose and NOT be Practical - like using 'mm' for distance measurement between towns (for which Km is ideal)! I feel, the already in use screen sizes like *cm and cm^2* seem approperiate. Perhaps, a good direction can be to recognise SEVERAL derived unit-symbols, be listed seperately and allowed rather be RIGID as HARD CONVERSIONS, is my view. Le Systeme Internationale d'Unites (SI) dictates through CGPM - the measures to be used & adopted, surely they leave room for 'practical adjustments' in day-to-day usage of units & quantities. I suggested some multiples & sub-multiples, some time ago: http://www.brijvij.com/IndoEuropean_UDN.doc Regards, Brij Bhushan Vij Friday, 20110114H12:49(decimal)EST Aa Nau Bhadra Kritvo Yantu Vishwatah -Rg Veda The Astronomical Poem (revised number of days in any month) "30 days has July,September, April, June, November and December all the rest have 31 except February which has 29 except on years divisible evenly by 4; except when YEAR divisible by 128 and 3200 - as long as you remember that "October (meaning 8) is the 10th month; and December (meaning 10) is the 12th BUT has 30 days & ONE OUTSIDE of calendar-format" Jan:31; Feb:29; Mar:31; Apr:30; May:31; Jun:30 Jul:30; Aug:31; Sep:30; Oct:31; Nov:30; Dec:30 (365th day of Year is World Day) ******As per Kali V-GRhymeCalendaar***** "Koi bhi cheshtha vayarth nahin hoti, purshaarth karne mein hai" My Profile - http://www.brijvij.com/bbv_2col-vipBrief.pdf Author had NO interaction with The World Calendar Association except via Media & Organisations to who I contributed for A Possible World Calendar, since 1971. HOME PAGE: http://www.brijvij.com/ Contact via E-mail: [email protected]
> From: [email protected] > Subject: [USMA:49513] Re: Screen size conundrum > To: [email protected] > Date: Fri, 14 Jan 2011 10:59:55 -0600 > > Michael, Jon, and Patrick, > > The "best" unit for TV screen area (size) is the coherent SI unit "meter > squared." > Flat screens of area about 1 m^2 and larger are already quite common. > > The "best" unit for TV pixel density is the unit "pixels per meter squared." > (I hesitate to call "pixels/m^2" an "SI unit." How is "pixel" related to SI? > > Of course, SI prefixes may be applied to the numerators of each unit > (preferably, excluding prefixes in the denominators). > > Gene. > > ---- Original message ---- > >Date: Fri, 14 Jan 2011 07:00:14 -0500 > >From: Jon Saxton <[email protected]> > >Subject: [USMA:49509] Re: Screen size conundrum > >To: "U.S. Metric Association" <[email protected]> > > > >I thought about this issue about 4 years ago. I think the best unit for > >measuring screen sizes is dm² but I expect an adverse reaction from > >other members of this list. > > > > > >On 2011-01-12 1858, Michael GLASS wrote: > >> Dear People, > >> > >> There's a real problem with electronic screen sizes - all of them. This > >> includes cameras, video cameras, computers, DVD players GPS monitors and > >> television sets. > >> > >> > >> 1 Because the screens are different shapes, there is no fixed relationship > >> between the size of the screen and the measure given. > >> > >> 2 Even in cases where there is a fixed ratio between shape of the screen > >> and > >> the size of the screen, the increase in the size is not linear, but is > >> related to the square of the number given. > >> > >> 3 As a result, power consumption on larger screen sizes is far higher than > >> might be anticipated by looking at the screen size. For example, a 15 inch > >> computer monitor is very nearly a 33% larger than a 13 inch model whereas > >> 15 > >> is just over 15% larger than 13. > >> > >> 4 With the issue of global warming, the power consumption of larger screens > >> is a matter of increasing concern. > >> > >> 5 Even if you express screen sizes in metric terms the diagonal is still a > >> misleading measure of the size of the screen. > >> > >> It seems to me that the best way to express the size of the screen is to > >> give its area. So here is my conundrum: would it be better to express this > >> size in square metres, square millimetres or square metres? What do others > >> think? > >> > >> Michael Glass > >> > >> > > >
