[USMA:37314] Re: Pearls of ignorance

[Martin Vlietstra]

 Hans,   I did not know whether to laugh or to cry!   One of the questions does however have an interesting answer, one which everybody who reads this board should remember:   << The cambelt on my car needs changing at 90000kms, what that in english? >>   The last prototype metre which was a physical artifact and which retired in 1960 was made by the London-based firm johnson, Matthey & co and and came into service in 1889.  This suggests tells me that if a nationality is to be assigned to the metre, then it must be English!  The statement in question is therefore already in English.  For the record, the prototype kilogram, manufactured at the same time by the same company is still in use.      ----- Original Message ----- From: H. Maenen To: U.S. Metric Association Sent: Sunday, October 01, 2006 8:30 AM Subject: [USMA:37313] Pearls of ignorance I have problems with posting on the list as I do not get copies of my posts, but I get the posts of all other members. Yeesterday I made another attempt and again I did not receive a copy of my post. Another attempt to post this, now on the email program at the site of my provider:   Here is a number of pearls from the Metric System forum from www.SImetric.co.uk. This site is only about conversion of units. I left the items as they are, errors and CAPS LOCK included. Total ignorance of metric and some posts on this forum also betray ignorance of Imperial/USC from people who are supposed to be able to use it. Here comes a selection:   How many micrograms are in a milligram or vice versa?   I need to know what the horsepower is for a jetski that has 760 cc's. Can you help me?   What is the temperature in Farenheit of a 75 watt 120 volt light bulb. Assuming an ambient temperature of 65 degrees?   HI happy New Year How many miligrams in a gram? I want to know how to get 6 grams of a supplement when the pills are 3900mg in six pills?   CAN SOMEONE PLEASE FEEL FREE TO SOLVE 6,100,000 cg IN GRAMS?   HOW DO YOU COVERT BTU INTO KW FOR BOILER BURNER NOZZLES, AND HOW WOULD YOU TEST THE NOZZLE TO DETERMINE IF THE RATING IS CORRECT. THANKS, KARL *This one makes sense: I would take 1 BTU = 1 kJ; then I can simply divide the given number in BTU by 3600 to get the power in kilowatt.   ! need to know how to calculate plastic bags to microns (micrometres of course) Have a 66cm x 82.5 cm bag at 24 grams.  Please advise the formula, Thanks   Approximately how many btu's would be generated by burning one gallon of commercial heating oil? An informed response would be greatly appreciated.   I'm using this formula but I question wheather it is giving me the correct results. I've done the math forward and backward to validate the result printed in the book. The result is 27 CFM 300 watts x 3.4 BTU/hr/watt = 1,020 Btu/hr Tr = Required Equipment Room Temp. = 90F Ts = Supply Temp. = 55F 1.08 is a constant factor of some kind?? Q = 1.08 x CFM x (Tr - Ts) or Q = 1,020 BTU/hr CFM = Q/1.08 x (Tr - Ts) CFM =27 WRONG!!! If you lower (Tr) to 84F then you will get 27. Is this formula bunk or what? Give me another way to figure this if it's not right. Thanks, xxx *This entire piece of ifp trash is bunk of course. What is the rationality of a unit like the BTU/h/watt????? Maybe it is another 'standard unit' as well!!!. The cambelt on my car needs changing at 90000kms, what that in english?   In the USA, it is usual to express energy costs in $/million Btu. How do practising people do it in Europe? EU/billion J looks awkward, and EU/kWh looks as if people are talking about electric rates rather than, for example, the price of natural gas. *€/MJ of course, except when some fool thinks that he needs to use the BTU.   ! need help with these measurements: ___mL=1L ___µm=1m ___s=1ks 450 degrees celcius=___K -100degrees celcius=___K 25degrees celcius=___K 100K=___degrees celcius 0(zero)K=___degrees celcius 500K=___degrees celcius   How many teaspoons in 75ml and how many ounces in 35g?   I am trying to find the ratio to convert Liters to Mililiters.’ * Very difficult indeed! Thank goodness we have ifp, that is much simpler than metric!!!!   I'm trying to convert pounds to ounces, but the pounds have a decimal, for example, I'm trying to convert 7.02 pounds to ounces, would I just multiply 7 by 16 and tack on 2 more ounces or do a I multiply it all by 16? Or is there some other way? *The idiocy of decimalising what can’t be decimalized rationally causes problems.   Approximately how many btu's would be generated by burning one gallon of commercial heating oil? An informed response would be greatly appreciated. * First question: Which gallon?    What is the formula to convert Stones to Pounds, I know a stone is 14 Lbs but how to I convert, lets say, 9 stones 8 ?? It also says a stone is "approximently" 14 Lbs.   Title: 20 to 30 mm. Question: how much is that in ounces of tsp   Title: cc to inches. Question: What is .55 cm in inches? *One could easily miss the decimal point here. Down with naked decimals!   We know how many rods there are in an acre, but how many poles in a rod? or an acre? one or the other.