Admit your ignorance - things you've only just realised/learned

[ebikeerwidnes]

I realised to my shame that I didn't know what the units for area were equivalent to (apart from the obvious - square metres, square feet etc.) so I thought it was about time that I looked them up...

The logical metric units:

• I are = 100 square metres
• 1 hectare = 100 ares = 10,000 square metres

The illogical imperial units:

• 1 square yard = 9 square feet
• 1 perch = 30.25 square yards (!!!)
• 1 rood = 40 perches
• 1 acre = 4 roods = 4,840 square yards = 43,560 square feet

Fairly accurate conversion factors...

• 1 acre -> 0.4047 hectare
• 1 hectare -> 2.4711 acres

Reasonable approximate conversion factors...

• 1 acre -> 0.4 hectare
• 1 hectare -> 2.5 acres

The easiest thing is to remember that an acre is the amount of land an Ox can plough in a day

hope this helps

 

[Profpointy]

I realised to my shame that I didn't know what the units for area were equivalent to (apart from the obvious - square metres, square feet etc.) so I thought it was about time that I looked them up...

The logical metric units:

• I are = 100 square metres
• 1 hectare = 100 ares = 10,000 square metres

The illogical imperial units:

• 1 square yard = 9 square feet
• 1 perch = 30.25 square yards (!!!)
• 1 rood = 40 perches
• 1 acre = 4 roods = 4,840 square yards = 43,560 square feet

Fairly accurate conversion factors...

• 1 acre -> 0.4047 hectare
• 1 hectare -> 2.4711 acres

Reasonable approximate conversion factors...

• 1 acre -> 0.4 hectare
• 1 hectare -> 2.5 acres

One of the more surprising results, at least at first sight, is that the European way of measuring fuel consumption when tidied up is actually area, specifically the cross sectional area of the notional pipe of fuel that you consume as you drive along

If, instead of miles per gallon (or km per litre for that matter) you do litres per km, that tidies up into 100x100x100 mm / 1000,000 mm = mm square, ie area

 

[newfhouse]

The easiest thing is to remember that an acre is the amount of land an Ox can plough in a day

hope this helps

An acre is 471 nanoWales, as any fule kno.

 

[Joey Shabadoo]

An acre is 40.46 times the size of a blue whale or 169.14 times the size of a London double-decker bus.

You can park 470 London double-decker buses on the flight deck of the carrier HMS Queen Elizabeth.

 

[DaveReading]

One of the more surprising results, at least at first sight, is that the European way of measuring fuel consumption when tidied up is actually area, specifically the cross sectional area of the notional pipe of fuel that you consume as you drive along

If, instead of miles per gallon (or km per litre for that matter) you do litres per km, that tidies up into 100x100x100 mm / 1000,000 mm = mm square, ie area

I've never seen that, though I rather like the concept. Isn't km per litre (i.e. the inverse of the way we usually measure fuel consumption) more normal ?

 

[markemark]

That cinemas prefer you to leave your rubbish by your seats so they can recycle it properly. For years I’ve always done ‘the right thing’ and cleared my rubbish and thrown it in the bins provided which I guess just ends up in landfill.

 

[figbat]

I've never seen that, though I rather like the concept. Isn't km per litre (i.e. the inverse of the way we usually measure fuel consumption) more normal ?

Litres/100km are the normal European fuel consumption units.

 

[Joey Shabadoo]

The phrase "Hands down" refers to a jockey being so far ahead that they let the reins go completely slack and rest their hands on the horses back/neck, releasing control of the horse completely because they cannot lose.

 

[albion]

That cinemas prefer you to leave your rubbish by your seats so they can recycle it properly. For years I’ve always done ‘the right thing’ and cleared my rubbish and thrown it in the bins provided which I guess just ends up in landfill.

Ah, another new Cesspit Lane myth.

 

[markemark]

Ah, another new Cesspit Lane myth.

Eh?

 

[matticus]

I realised to my shame that I didn't know what the units for area were equivalent to (apart from the obvious - square metres, square feet etc.) so I thought it was about time that I looked them up...

The logical metric units:

• I are = 100 square metres
• 1 hectare = 100 ares = 10,000 square metres

<...>
Reasonable approximate conversion factors...

• 1 acre -> 0.4 hectare
• 1 hectare -> 2.5 acres

... and a running track is about 14,000 square metres, so a bit more than 1 hectare. Which helps me to visualize a hectare!
(Or you could use a soccer pitch being about 0.7 hectares if you prefer.)

 

[Dogtrousers]

One of the more surprising results, at least at first sight, is that the European way of measuring fuel consumption when tidied up is actually area, specifically the cross sectional area of the notional pipe of fuel that you consume as you drive along

If, instead of miles per gallon (or km per litre for that matter) you do litres per km, that tidies up into 100x100x100 mm / 1000,000 mm = mm square, ie area

I saw a video on that subject. If you go onto youtube and search for "cursed units" you may find it.

 

[Dogtrousers]

The easiest thing is to remember that an acre is the amount of land an Ox can plough in a day

hope this helps

In Germany and the Netherlands there is/was a "Morgen" which was the amount that can be ploughed with an ox in a morning. Set to about 60% of a tagwerk (day's work) which unsurprisingly comes out at about an acre. https://en.wikipedia.org/wiki/Morgen

According to that article, the size of a Morgen varied widely with place. It seems that in Mecklenberg they were particularly industrious and managed well over an acre just in the morning. And in Land of Hadeln they were pretty much superhuman, managing the best part of 3 acres in the morning. So provided that they didn't take the afternoon off they'd be going at coming on for 5 acres a day. Whereas in lazy Franconia their Morgen gave them only about three quarters of an acre per day.

Of course those of us without direct experience of ox ploughing speeds are left pretty much none the wiser.

 

[ebikeerwidnes]

In Germany and the Netherlands there is/was a "Morgen" which was the amount that can be ploughed with an ox in a morning. Set to about 60% of a tagwerk (day's work) which unsurprisingly comes out at about an acre. https://en.wikipedia.org/wiki/Morgen

According to that article, the size of a Morgen varied widely with place. It seems that in Mecklenberg they were particularly industrious and managed well over an acre just in the morning. And in Land of Hadeln they were pretty much superhuman, managing the best part of 3 acres in the morning. So provided that they didn't take the afternoon off they'd be going at coming on for 5 acres a day. Whereas in lazy Franconia their Morgen gave them only about three quarters of an acre per day.

Of course those of us without direct experience of ox ploughing speeds are left pretty much none the wiser.

Yup - but I like stupid units of measurement

Angstroms per century is a good one
and microfortnights - which is sometime approximated to seconds

 

[Dogtrousers]

Yup - but I like stupid units of measurement

Angstroms per century is a good one
and microfortnights - which is sometime approximated to seconds

Neil Angstrom - the smallest man on the moon.