I'm not a bad carpenter (hobby only) and know all about hand-planing with
the grain. How is it then that my electric plane rotates 'backwards'? If I
go with the grain it chews it up, but 'against the grain' it's fine.
Actually we are considerably ahead of that.
I've certainly flown model planes for 45 minutes + on batteries.
Well over an hour on a typical light aircraft
Its very depressing. Bartteries are so nearly good enough - and yet its
almost certion they never will be good enough - even if we got to 50%
of theoretical absolute maximum energy density for any chemical battery,
it still is absolutely on the edge of being viable commercially.
What we need is some kind of nuclear battery that releases energy as
electricity direct from a nucleus....
Religion is regarded by the common people as true, by the wise as
foolish, and by the rulers as useful.
On Tue, 10 May 2016 15:36:39 +0100, Mike Tomlinson
Here's another one for you. http://tinyurl.com/h9rolbm Scroll down
about 3/4 of the way. Pictures of the prototype, and the modified B-36
bomber fitted with one. Also the Russian equivalent, the
The guy at the saw mill is interested in getting the maximum amount of
board/scantling out of any trunk and not hugely concerned if the annual
growth rings are not exactly parallel to the edges. If you are prepared
to pay more he will maximise the number of cuts close to a radiant from
the trunk centre.
By the time you cart it home it may have been re-sized several times.
Before planing an edge, you should check to see if the dark winter
growth is dipping or rising. Rising going away in my terminology would
be *down* grain.
By running a (hand) plane over it. The grain is invariably at an angle
to the surface. In one direction it's smooth and in the other you rough
up the grain ends protruding through the surface - a bit like carpet pile.
I thought the same as you until my woodwork teacher put me right about
60 years ago!
And if we stay all power tools will be banned to save power and boost
the requirement for skilled craftsmen and subsequent up-surge in
apprenticeships. Increasing employment all round as more workers will be
required to do the same job in the same time.
More employment = less social security benefits and more in-come tax.
Winner winner Chicken Dinner.
Ban power tools - boost the economy.
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