G
Geoff
Guest
Peter Hucker wrote:
geoff
That's just unlucky !
geoff
Guest
most with glass rotating trays will run, the glass absorbs enough rays to
heat up slightly but wont smoke anything.
might ruin your electric bill budget though. ;-))
shakle the damm bird to the cage/perch
or teach the bird to climb inside to warm itself up. ;-P
"Peter Hucker" <none@spam.com> wrote in message
news
p.tme3s0ec4buhsv@fx62...
Chinese."
heat up slightly but wont smoke anything.
might ruin your electric bill budget though. ;-))
shakle the damm bird to the cage/perch
or teach the bird to climb inside to warm itself up. ;-P
"Peter Hucker" <none@spam.com> wrote in message
news
p.tme3s0ec4buhsv@fx62...stuff like that)
country", but the person interrupts and says: "I am not British, I'm
Chinese."
interrupted before finishing his sentence. "I no be British, I be Turk!"
I'm Kosavon."
C
colin
Guest
"Peter Hucker" <none@spam.com> wrote in message
newsp.tmzeq8ks4buhsv@fx62...
material that burns very quickly,
the force comes from the fact that the burnt material wich is oxidesed takes
up a great deal more volume
and until it expands is under great pressure. in an empty oven there is no
combustables.
they always seem to try something to see if it blows up and if it doesnt
then they make sure it does, its often a caravan or microwave oven that gets
blown up.
It cant 'draw' more power from it unless that power actualy goes somewhere,
however it can put the magnetron under more stress, the voltages and current
may be higher even though the power is actually less, ie they are out of
phase and hence arnt both high at the same time.
but theres actually not that much to a magnetron, theres a central cathode
wich is like a rod with a heater inside, and a circular anode around this
with slots in, all in a vacuum and also not surprisngly a strong magnet.
The power is picked up via a piece of wire inbetween one of the slots.
The anode is what gets hot due to current flowing and is attatched to a
quite large heatsink with great number of fins wich has a fan blowing on it.
theres not a great deal to go wrong, its simplicity is its strength, the
same basic design was used 60 years ago, it could lose the vacuum of course,
or the insulation could fail, or the heater could break, or the magnet could
lose its strength but most of the parts are designed to work at a high
temperature, its just metal and glass, its not like silicon wich self
destructs at 200'c.
The transformer does actually limit the current anyway.
Colin =^.^=
news
p.tmzeq8ks4buhsv@fx62...well normally in order to cuase an explosion you have to have a combustableOn Sun, 28 Jan 2007 23:03:36 -0000, colin <no.spam.for.me@ntlworld.com
wrote:
"Peter Hucker" <none@spam.com> wrote in message
news
On Sat, 27 Jan 2007 01:38:36 -0000, colin <no.spam.for.me@ntlworld.com
wrote:
"Peter Hucker" <none@spam.com> wrote in message
news
On Wed, 24 Jan 2007 14:53:25 -0000, Snap Whipcrack..............
snapw@aol.com> wrote:
It dissipates. Where do you think the microwave transmitters on
mountain
tops power ends up? It doesn't go round and round the earth
forever.
It's absorbed into water, in lakes for example.
A closed microwave has nothing that can absorb it.
The glass tray will usually absorb some of the microwave, basically
when
its
empty the electric field builds up to such a high value that it
eventually
gets absorbed by something somewhere, or it ends up disipating in
sparking
wich can be quite spectacular if have two bits of unconnected metal
close to
eachother.
Brainiac Science Abuse (TV program) put a set of five swinging balls
(one
of them office toys) in a microwave on its own. The microwave exploded
spectacularly after less than a minute. Can you explain that?
From what ive seen of braniac they probably filled it with something
that
would explode spectacularly.
I wonder what the balls were made of, something explosive perhaps ?
ordinary flour or paper dust can make a very good explosive if mixed
with
air.
You mean they were lying?!?
material that burns very quickly,
the force comes from the fact that the burnt material wich is oxidesed takes
up a great deal more volume
and until it expands is under great pressure. in an empty oven there is no
combustables.
they always seem to try something to see if it blows up and if it doesnt
then they make sure it does, its often a caravan or microwave oven that gets
blown up.
disagree, I know nothing about that sort of thing.
It cant 'draw' more power from it unless that power actualy goes somewhere,
however it can put the magnetron under more stress, the voltages and current
may be higher even though the power is actually less, ie they are out of
phase and hence arnt both high at the same time.
but theres actually not that much to a magnetron, theres a central cathode
wich is like a rod with a heater inside, and a circular anode around this
with slots in, all in a vacuum and also not surprisngly a strong magnet.
The power is picked up via a piece of wire inbetween one of the slots.
The anode is what gets hot due to current flowing and is attatched to a
quite large heatsink with great number of fins wich has a fan blowing on it.
theres not a great deal to go wrong, its simplicity is its strength, the
same basic design was used 60 years ago, it could lose the vacuum of course,
or the insulation could fail, or the heater could break, or the magnet could
lose its strength but most of the parts are designed to work at a high
temperature, its just metal and glass, its not like silicon wich self
destructs at 200'c.
The transformer does actually limit the current anyway.
Colin =^.^=
P
PeterD
Guest
On Thu, 01 Feb 2007 12:58:14 GMT, "colin"
<no.spam.for.me@ntlworld.com> wrote:
is true, but there's more! <bg>
All you need is pressure, not a combustable substance.
In the case of the balls that 'exploded' were they to have a 'strong'
outter shell, and a high moisture content inside, the moisture could
easily convert to steam and build up pressure until the outer shell
failed--an explosion... It would not be difficult to build up a
hundred PSI of steam pressure, and that would result in a rather large
'bang'!
<no.spam.for.me@ntlworld.com> wrote:
WEll, almost right... (and your 'normally' does apply, so what you say
is true, but there's more! <bg>
All you need is pressure, not a combustable substance.
In the case of the balls that 'exploded' were they to have a 'strong'
outter shell, and a high moisture content inside, the moisture could
easily convert to steam and build up pressure until the outer shell
failed--an explosion... It would not be difficult to build up a
hundred PSI of steam pressure, and that would result in a rather large
'bang'!
C
colin
Guest
"PeterD" <peter2@hipson.net> wrote in message
news:ffs3s2pp9201t2t03t41lr7ugo50u0fktb@4ax.com...
at the time,
but I did think enough to say normally lol,
bit like eggs that explode when you put them in a microwave without first
making a hole in them,
although its not all that exciting.
Colin =^.^=
news:ffs3s2pp9201t2t03t41lr7ugo50u0fktb@4ax.com...
aha yes the Boiling liquid expanding vapour explosions didnt think of thatOn Thu, 01 Feb 2007 12:58:14 GMT, "colin"
no.spam.for.me@ntlworld.com> wrote:
well normally in order to cuase an explosion you have to have a
combustable
material that burns very quickly,
the force comes from the fact that the burnt material wich is oxidesed
takes
up a great deal more volume
and until it expands is under great pressure. in an empty oven there is
no
combustables.
WEll, almost right... (and your 'normally' does apply, so what you say
is true, but there's more! <bg>
All you need is pressure, not a combustable substance.
In the case of the balls that 'exploded' were they to have a 'strong'
outter shell, and a high moisture content inside, the moisture could
easily convert to steam and build up pressure until the outer shell
failed--an explosion... It would not be difficult to build up a
hundred PSI of steam pressure, and that would result in a rather large
'bang'!
at the time,
but I did think enough to say normally lol,
bit like eggs that explode when you put them in a microwave without first
making a hole in them,
although its not all that exciting.
Colin =^.^=
S
species5618
Guest
colin wrote:
Once upon a time whilst visiting the in-laws in Germany, my wife
reheated some hard boiled eggs in their shells in the microwave by
placing an egg in a glass tumbler and then a slightly larger one over
the first 'in case they pop'. They were then placed on the table for
'früstück'. A full two minutes later an egg exploded covering not only
us, but the ceiling, drapes and nick nak display shelves with egg. A
frantic clean up campaign started as was had a little over a hour to
restore the dining room to its pristine condition before the
mother-in-law returned. We can laugh about it now, but we never have
told the in-laws about it. One day when my father-in-law has to change a
light bulb (long-life of course) he might find a bit of dried egg and
wonder....
"PeterD" <peter2@hipson.net> wrote in message
news:ffs3s2pp9201t2t03t41lr7ugo50u0fktb@4ax.com...
On Thu, 01 Feb 2007 12:58:14 GMT, "colin"
no.spam.for.me@ntlworld.com> wrote:
well normally in order to cuase an explosion you have to have a
combustable
material that burns very quickly,
the force comes from the fact that the burnt material wich is oxidesed
takes
up a great deal more volume
and until it expands is under great pressure. in an empty oven there is
no
combustables.
WEll, almost right... (and your 'normally' does apply, so what you say
is true, but there's more! <bg>
All you need is pressure, not a combustable substance.
In the case of the balls that 'exploded' were they to have a 'strong'
outter shell, and a high moisture content inside, the moisture could
easily convert to steam and build up pressure until the outer shell
failed--an explosion... It would not be difficult to build up a
hundred PSI of steam pressure, and that would result in a rather large
'bang'!
aha yes the Boiling liquid expanding vapour explosions didnt think of that
at the time,
but I did think enough to say normally lol,
bit like eggs that explode when you put them in a microwave without first
making a hole in them,
although its not all that exciting.
Colin =^.^=
Once upon a time whilst visiting the in-laws in Germany, my wife
reheated some hard boiled eggs in their shells in the microwave by
placing an egg in a glass tumbler and then a slightly larger one over
the first 'in case they pop'. They were then placed on the table for
'früstück'. A full two minutes later an egg exploded covering not only
us, but the ceiling, drapes and nick nak display shelves with egg. A
frantic clean up campaign started as was had a little over a hour to
restore the dining room to its pristine condition before the
mother-in-law returned. We can laugh about it now, but we never have
told the in-laws about it. One day when my father-in-law has to change a
light bulb (long-life of course) he might find a bit of dried egg and
wonder....
P
Peter Hucker
Guest
They're cleverer than you think. One escaped, and flew from tree to tree waiting for me to chase after him. Came back the following day by himself, after flying for miles all over the place.
On Thu, 01 Feb 2007 00:19:42 -0000, <hapticz@sbcglobal.net> wrote:
--
http://www.petersparrots.com http://www.insanevideoclips.com http://www.petersphotos.com
It said, "Insert disk #3," but only two will fit!
On Thu, 01 Feb 2007 00:19:42 -0000, <hapticz@sbcglobal.net> wrote:
most with glass rotating trays will run, the glass absorbs enough rays to
heat up slightly but wont smoke anything.
might ruin your electric bill budget though. ;-))
shakle the damm bird to the cage/perch
or teach the bird to climb inside to warm itself up. ;-P
"Peter Hucker" <none@spam.com> wrote in message
news
Is it really true that turning on a microwave with nothing in it will
break it?
Even more worrying - will it catch fire or explode?
Don't they have a safety cutout? Can't it sense the Klystron overheating,
or a build up of microwaves over a certain level?
I have purchased a new microwave which has an easier to grab control. I'm
concerned one of my pet parrots will switch it on! (Seriously, they do
stuff like that)
--
http://www.petersparrots.com http://www.insanevideoclips.com
http://www.petersphotos.com
A Pakistani arrives in London City all excited. He stops the first person
he meets. "Good day, Mr. British, thank you to accept me in Your nice
country", but the person interrupts and says: "I am not British, I'm
Chinese."
The Pakistani continues on his way and meets another passer-by. "Thank you
Mr. British for to let my family and me stay here... " Again, he's
interrupted before finishing his sentence. "I no be British, I be Turk!"
He goes a little farther and meets another person and greets him "thank
you for letting me come to your beautiful country." ... "I'm not British,
I'm Kosavon."
"But," answers the Pakistani distressed, "where are the British??"
The Kosavon looks at his watch and says ..... "Probably at work."
--
http://www.petersparrots.com http://www.insanevideoclips.com http://www.petersphotos.com
It said, "Insert disk #3," but only two will fit!
Guest
yep, we give humans way too much in the way of exclusive ability to think
and reason. & dont forget, some of these other critters have had eons of
evolutionary expertise in dealing with the occasional problems of human
interference! and they win too! we seem to be ruthless killers for no
reasons at all!
release of grey parrots from zoo in NY city awhile back, they migrated east
to connecticut, began habitating/building HUGE stick nests around (what
else) telephone poles cross arms, complete with transformers and 14 KV feed
thru lines!
30-40 birds per nest, quite a probem for power crews! of course, animal
rights folks went nuts when they had to start removing them!. u can read
articles abt in news archives. quite interesting
)
"Peter Hucker" <none@spam.com> wrote in message
newsp.tm4zly0q4buhsv@fx62...
and reason. & dont forget, some of these other critters have had eons of
evolutionary expertise in dealing with the occasional problems of human
interference! and they win too! we seem to be ruthless killers for no
reasons at all!
release of grey parrots from zoo in NY city awhile back, they migrated east
to connecticut, began habitating/building HUGE stick nests around (what
else) telephone poles cross arms, complete with transformers and 14 KV feed
thru lines!
30-40 birds per nest, quite a probem for power crews! of course, animal
rights folks went nuts when they had to start removing them!. u can read
articles abt in news archives. quite interesting
)"Peter Hucker" <none@spam.com> wrote in message
news
p.tm4zly0q4buhsv@fx62...after flying for miles all over the place.
On Thu, 01 Feb 2007 00:19:42 -0000, <hapticz@sbcglobal.net> wrote:
most with glass rotating trays will run, the glass absorbs enough rays
to
heat up slightly but wont smoke anything.
might ruin your electric bill budget though. ;-))
shakle the damm bird to the cage/perch
or teach the bird to climb inside to warm itself up. ;-P
"Peter Hucker" <none@spam.com> wrote in message
news
Is it really true that turning on a microwave with nothing in it will
break it?
Even more worrying - will it catch fire or explode?
Don't they have a safety cutout? Can't it sense the Klystron
overheating,
or a build up of microwaves over a certain level?
I have purchased a new microwave which has an easier to grab control.
I'm
concerned one of my pet parrots will switch it on! (Seriously, they do
stuff like that)
--
http://www.petersparrots.com http://www.insanevideoclips.com
http://www.petersphotos.com
A Pakistani arrives in London City all excited. He stops the first
person
he meets. "Good day, Mr. British, thank you to accept me in Your nice
country", but the person interrupts and says: "I am not British, I'm
Chinese."
The Pakistani continues on his way and meets another passer-by. "Thank
you
Mr. British for to let my family and me stay here... " Again, he's
interrupted before finishing his sentence. "I no be British, I be Turk!"
He goes a little farther and meets another person and greets him "thank
you for letting me come to your beautiful country." ... "I'm not
British,
I'm Kosavon."
"But," answers the Pakistani distressed, "where are the British??"
The Kosavon looks at his watch and says ..... "Probably at work."
--
http://www.petersparrots.com http://www.insanevideoclips.com
http://www.petersphotos.com
It said, "Insert disk #3," but only two will fit!
P
Peter Hucker
Guest
That sounds familiar. My greys love power cords!
On Mon, 12 Feb 2007 05:54:41 -0000, <hapticz@sbcglobal.net> wrote:
--
http://www.petersparrots.com http://www.insanevideoclips.com http://www.petersphotos.com
The ant can lift 50 times its own weight, can pull 30 times its own weight, and always falls over on its right side when intoxicated.
On Mon, 12 Feb 2007 05:54:41 -0000, <hapticz@sbcglobal.net> wrote:
yep, we give humans way too much in the way of exclusive ability to think
and reason. & dont forget, some of these other critters have had eons of
evolutionary expertise in dealing with the occasional problems of human
interference! and they win too! we seem to be ruthless killers for no
reasons at all!
release of grey parrots from zoo in NY city awhile back, they migrated east
to connecticut, began habitating/building HUGE stick nests around (what
else) telephone poles cross arms, complete with transformers and 14 KV feed
thru lines!
30-40 birds per nest, quite a probem for power crews! of course, animal
rights folks went nuts when they had to start removing them!. u can read
articles abt in news archives. quite interesting
"Peter Hucker" <none@spam.com> wrote in message
news
They're cleverer than you think. One escaped, and flew from tree to tree
waiting for me to chase after him. Came back the following day by himself,
after flying for miles all over the place.
On Thu, 01 Feb 2007 00:19:42 -0000, <hapticz@sbcglobal.net> wrote:
most with glass rotating trays will run, the glass absorbs enough rays
to
heat up slightly but wont smoke anything.
might ruin your electric bill budget though. ;-))
shakle the damm bird to the cage/perch
or teach the bird to climb inside to warm itself up. ;-P
"Peter Hucker" <none@spam.com> wrote in message
news
Is it really true that turning on a microwave with nothing in it will
break it?
Even more worrying - will it catch fire or explode?
Don't they have a safety cutout? Can't it sense the Klystron
overheating,
or a build up of microwaves over a certain level?
I have purchased a new microwave which has an easier to grab control.
I'm
concerned one of my pet parrots will switch it on! (Seriously, they do
stuff like that)
--
http://www.petersparrots.com http://www.insanevideoclips.com
http://www.petersphotos.com
A Pakistani arrives in London City all excited. He stops the first
person
he meets. "Good day, Mr. British, thank you to accept me in Your nice
country", but the person interrupts and says: "I am not British, I'm
Chinese."
The Pakistani continues on his way and meets another passer-by. "Thank
you
Mr. British for to let my family and me stay here... " Again, he's
interrupted before finishing his sentence. "I no be British, I be Turk!"
He goes a little farther and meets another person and greets him "thank
you for letting me come to your beautiful country." ... "I'm not
British,
I'm Kosavon."
"But," answers the Pakistani distressed, "where are the British??"
The Kosavon looks at his watch and says ..... "Probably at work."
--
http://www.petersparrots.com http://www.insanevideoclips.com
http://www.petersphotos.com
It said, "Insert disk #3," but only two will fit!
--
http://www.petersparrots.com http://www.insanevideoclips.com http://www.petersphotos.com
The ant can lift 50 times its own weight, can pull 30 times its own weight, and always falls over on its right side when intoxicated.