You've got most of the ones I use when I teach people about metric, so they
have benchmarks from which to visualize without converting to antiquated
units.
I most often use:
- 1 kg = the mass of 1 L of water
- 1 g = approximate mass of a paper clip
- 2.5 g = exact mass of a US penny
Here are some examples of body dimensions for a man of average height.
* Your knee is about 50cm above the ground.
* Your waist is about a metre above the ground.
* The top of your chest is about 1.5 metres above the ground.
* An average height for a man is about 1.75m and about 1.65m for a
I notice baggage limits on many airlines, including European airlines are now
23 kg (50 lb) per bag in economy and 32 kg (70 lb) in business. It does varies
widely, I wonder how Lufthansa, Air France et al got talked into what is
basically a pound limit on baggage mass? It's actually a shade
On international flights, there must have been some international agreement. I
am guessing the US airlines got their 50 and 70 lb limits rounded up to 23 and
32 kg. The US airlines list in dual. I would certainly argue for 22.999 kg
being 23 kg, who cares about 50 lbs.
Note that many
An important point: SI metric unit short forms are officially designated at
symbols, not abbreviations.
This seemingly minor point is importent because it relates to several other
usage rules:
SI symbols are never followed by a period (whereas abbreviations are).
SI symbols are never
In May 2009 we flew from Birmingham (UK) to Belfast City Airport (Northern
Ireland) on Flybe. The baggage limit was exactly 20 kg.
Carleton
From: owner-u...@colostate.edu [mailto:owner-u...@colostate.edu] On Behalf
Of John M. Steele
Sent: Monday, June 04, 2012 15:43
To: U.S. Metric
