Running an empty microwave oven

Discussion in 'Electronic Equipment' started by Peter Hucker, Jan 19, 2007.

  1. Peter Hucker

    Peter Hucker Guest

    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."
    Peter Hucker, Jan 19, 2007
    #1
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  2. Peter Hucker

    Jon Elson Guest

    Peter Hucker wrote:

    >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,
    >

    That would be a Magnetron tube, and yes, I thenk they all have a
    thermostat on
    the tube. This is also to prevent a fire if the cooling fan seizes up.
    But, in the
    case of no food to absorb the microwave energy, the reflected power can
    build up
    higher than normal voltages in the tube and cause permanent damage
    before the
    entire anode overheats.

    > 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)
    >
    >
    >

    Parrots? What about kids? I suspect quite a few microwaves get "toasted"
    by kids turning them on empty. I know they can survive a few seconds of
    this abuse without noticeable damage. You could unplug it or leave the door
    open (I'm pretty sure a parrot couldn't close the door.)

    Jon
    Jon Elson, Jan 19, 2007
    #2
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  3. Peter Hucker

    Alison Guest

    Peter Hucker <> wrote in message news:eek:p.tme3s0ec4buhsv@fx62...
    >
    > 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)
    >


    Parrots. Cool :)

    Leave a cup of water in it. Or something like those heat up aromatherapy
    bags, the ones that have lots of little cherry stones in it.
    Alison, Jan 20, 2007
    #3
  4. Peter Hucker

    Peter Hucker Guest

    On Sat, 20 Jan 2007 10:02:05 -0000, Alison <"<invalid"> wrote:

    > Peter Hucker <> wrote in message news:eek:p.tme3s0ec4buhsv@fx62...
    >>
    >> 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)
    >>

    >
    > Parrots. Cool :)


    13 of them. Messy. Noisy. But fun.

    > Leave a cup of water in it. Or something like those heat up aromatherapy
    > bags, the ones that have lots of little cherry stones in it.


    That would only delay the problem. And I'd never remember to put a glass of water in after each time I use it.

    I want to know what happens if it is switched on empty. The instructions just say it will damage it. That doesn't bother me too much, it was a very cheap one. As long as it doesn't explode or catch fire when I'm out of the house.

    --
    http://www.petersparrots.com http://www.insanevideoclips.com http://www.petersphotos.com

    What's the difference between spit and swallow?
    Forty pounds of pressure on the back of her head.
    Peter Hucker, Jan 20, 2007
    #4
  5. Peter Hucker

    Peter Hucker Guest

    On Fri, 19 Jan 2007 20:26:35 -0000, Jon Elson <> wrote:

    >
    >
    > Peter Hucker wrote:
    >
    >> 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,
    >>

    > That would be a Magnetron tube, and yes, I thenk they all have a
    > thermostat on
    > the tube. This is also to prevent a fire if the cooling fan seizes up.
    > But, in the
    > case of no food to absorb the microwave energy, the reflected power can
    > build up
    > higher than normal voltages in the tube and cause permanent damage
    > before the
    > entire anode overheats.


    So it'll just break? That's good to know. I don't want to lose a house or a parrot while out at work.

    >> 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)
    >>
    >>
    >>

    > Parrots? What about kids? I suspect quite a few microwaves get "toasted"
    > by kids turning them on empty.


    That's a point, it must happen a lot. If they caught fire or exploded, we'd see it on the news.

    > I know they can survive a few seconds of
    > this abuse without noticeable damage.


    I once went for an interview at a company that makes magnetrons. As far as I know there is a thing that absorbs all returning microwaves. Wouldn't this just have a temperature sensor in it that would shut off the oven?

    > You could unplug it


    The plug is behind the fridge. I used to plug it in above the worktop, but the parrots ate the plug!

    > or leave the door open (I'm pretty sure a parrot couldn't close the door.)


    I bet it could, if it wanted to. But they are more interested in opening or breaking things. Parrots do not tidy or assemble things.

    If I leave the door open, one will climb inside and chew up the cover that's over the magnetron output (it looks to be card).

    --
    http://www.petersparrots.com http://www.insanevideoclips.com http://www.petersphotos.com

    "A computer lets you make more mistakes faster than any invention in human history--with the possible exceptions of handguns and tequila."
    Peter Hucker, Jan 20, 2007
    #5
  6. Peter Hucker

    PeterD Guest

    On Sat, 20 Jan 2007 16:56:34 -0000, "Peter Hucker" <>
    wrote:

    >On Sat, 20 Jan 2007 10:02:05 -0000, Alison <"<invalid"> wrote:
    >
    >> Peter Hucker <> wrote in message news:eek:p.tme3s0ec4buhsv@fx62...
    >>>
    >>> 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)
    >>>

    >>
    >> Parrots. Cool :)

    >
    >13 of them. Messy. Noisy. But fun.
    >
    >> Leave a cup of water in it. Or something like those heat up aromatherapy
    >> bags, the ones that have lots of little cherry stones in it.

    >
    >That would only delay the problem. And I'd never remember to put a glass of water in after each time I use it.
    >
    >I want to know what happens if it is switched on empty. The instructions just say it will damage it. That doesn't bother me too much, it was a very cheap one. As long as it doesn't explode or catch fire when I'm out of the house.


    Look, the only safe thing is to unplug it. Even a glass of water won't
    provide protection if they turn it on for 20 minutes! Use a short,
    heavy duty (12 awg) extension cord, or some other similar device.

    Either that, or make up a metal shield to cover the controls...
    PeterD, Jan 20, 2007
    #6
  7. Peter Hucker

    Jon Elson Guest

    Peter Hucker wrote:
    > On Fri, 19 Jan 2007 20:26:35 -0000, Jon Elson <> wrote:
    >
    >
    >>
    >>Peter Hucker wrote:
    >>
    >>
    >>>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,
    >>>

    >>
    >>That would be a Magnetron tube, and yes, I thenk they all have a
    >>thermostat on
    >>the tube. This is also to prevent a fire if the cooling fan seizes up.
    >> But, in the
    >>case of no food to absorb the microwave energy, the reflected power can
    >>build up
    >>higher than normal voltages in the tube and cause permanent damage
    >>before the
    >>entire anode overheats.

    >
    >
    > So it'll just break? That's good to know. I don't want to lose a house or a parrot while out at work.
    >

    Well, if it has the safety thermostat on the anode, then it will
    just shut down, probably forever. I have no idea whether the
    safety thermostat is mandated by law or required by testing
    agencies like UL, and whether the really cheap ones from China
    have them. Without the safety stat, I don't know what would happen.
    >
    >
    > That's a point, it must happen a lot. If they caught fire or exploded, we'd see it on the news.
    >

    Well, I think there have been some fires from them, but probably
    not a lot.
    >
    >
    > I once went for an interview at a company that makes magnetrons. As far as I know there is a thing that absorbs all returning microwaves. Wouldn't this just have a temperature sensor in it that would shut off the oven?

    Not in an oven. Maybe in a radar transmitter, they have an
    expensive part called a circulator that splits waves going in
    different directions, and shunts returning waves to a terminating
    resistor. Nothing like that in a microwave oven, believe me.

    Jon
    Jon Elson, Jan 20, 2007
    #7
  8. Peter Hucker

    colin Guest

    "Peter Hucker" <> wrote in message
    news:eek:p.tme3s0ec4buhsv@fx62...
    > 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)

    When I designed some of the early mcu controllers for them eons ago
    we used to give them a heck of a lot of abuse such
    as running them empty to try and get the mcu to crash,
    (wich with a piggy back eprom mcu was all too easy)
    ofc always a microwave leakage meter nearby,
    the most spectacular thing was to melt the glass tray,
    the turntable mechanism was the first thing to melt usually.

    If theres food inside it will eventually catch fire and the flames will come
    out of the back,
    this was a serious liability worry at the time I assume theyve added some
    safty things since I worked on them.

    Some have water vapour detectors wich sense the peak and stop cooking, I
    assume they will stop if nothing is detected.

    Colin =^.^=
    colin, Jan 22, 2007
    #8
  9. Peter Hucker

    Peter Hucker Guest

    On Mon, 22 Jan 2007 14:18:49 -0000, colin <> wrote:

    > "Peter Hucker" <> wrote in message
    > news:eek:p.tme3s0ec4buhsv@fx62..
    >> 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)
    >
    > When I designed some of the early mcu controllers for them eons ago
    > we used to give them a heck of a lot of abuse such
    > as running them empty to try and get the mcu to crash,
    > (wich with a piggy back eprom mcu was all too easy)
    > ofc always a microwave leakage meter nearby,
    > the most spectacular thing was to melt the glass tray,
    > the turntable mechanism was the first thing to melt usually.
    >
    > If theres food inside it will eventually catch fire and the flames will come
    > out of the back,
    > this was a serious liability worry at the time I assume theyve added some
    > safty things since I worked on them.
    >
    > Some have water vapour detectors wich sense the peak and stop cooking, I
    > assume they will stop if nothing is detected.


    This is a £27 Tesco Value microwave - probably only has legal safety requirements.

    I've already turned it on momentarily with nothing in it, as I'm used to an electronic one. If my food has gone cold due to a phonecall etc, I tend to shove it in and just turn the timer round to get it to go, then open the door after 20 seconds. The electronic ones cancelled the timer when you opened the door, but this one turns back on when you shut the door.

    --
    http://www.petersparrots.com http://www.insanevideoclips.com http://www.petersphotos.com

    "Computers in the future may weigh no more than 1.5 tons." -- Popular Mechanics, 1949
    Peter Hucker, Jan 22, 2007
    #9
  10. Peter Hucker

    Peter Hucker Guest

    On Sat, 20 Jan 2007 21:03:42 -0000, PeterD <> wrote:

    > On Sat, 20 Jan 2007 16:56:34 -0000, "Peter Hucker" <>
    > wrote:
    >
    >> On Sat, 20 Jan 2007 10:02:05 -0000, Alison <"<invalid"> wrote:
    >>
    >>> Peter Hucker <> wrote in message news:eek:p.tme3s0ec4buhsv@fx62...
    >>>>
    >>>> 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)
    >>>>
    >>>
    >>> Parrots. Cool :)

    >>
    >> 13 of them. Messy. Noisy. But fun.
    >>
    >>> Leave a cup of water in it. Or something like those heat up aromatherapy
    >>> bags, the ones that have lots of little cherry stones in it.

    >>
    >> That would only delay the problem. And I'd never remember to put a glass of water in after each time I use it.
    >>
    >> I want to know what happens if it is switched on empty. The instructions just say it will damage it. That doesn't bother me too much, it was a very cheap one. As long as it doesn't explode or catch fire when I'm out of the house.

    >
    > Look, the only safe thing is to unplug it. Even a glass of water won't
    > provide protection if they turn it on for 20 minutes! Use a short,
    > heavy duty (12 awg) extension cord, or some other similar device.


    Nowhere is safe to plug it in without them chewing the plug. The plug has to be out of sight, which means I can't get to it to turn it off.

    > Either that, or make up a metal shield to cover the controls...


    I bit of a hassle, and I'm useless at that kind of thing. And too lazy to do so unless I'm sure it would explode. Maybe I should buy another one and try it in the garden....

    --
    http://www.petersparrots.com http://www.insanevideoclips.com http://www.petersphotos.com

    Condoms aren't completely safe. A friend of mine was wearing one and got hit by a bus.
    Peter Hucker, Jan 22, 2007
    #10
  11. Peter Hucker

    colin Guest

    "Peter Hucker" <> wrote in message
    news:eek:p.tmkkhkha4buhsv@fx62...
    > On Mon, 22 Jan 2007 14:18:49 -0000, colin <>

    wrote:
    >
    > > "Peter Hucker" <> wrote in message
    > > news:eek:p.tme3s0ec4buhsv@fx62..
    > >> 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)
    > >
    > > When I designed some of the early mcu controllers for them eons ago
    > > we used to give them a heck of a lot of abuse such
    > > as running them empty to try and get the mcu to crash,
    > > (wich with a piggy back eprom mcu was all too easy)
    > > ofc always a microwave leakage meter nearby,
    > > the most spectacular thing was to melt the glass tray,
    > > the turntable mechanism was the first thing to melt usually.
    > >
    > > If theres food inside it will eventually catch fire and the flames will

    come
    > > out of the back,
    > > this was a serious liability worry at the time I assume theyve added

    some
    > > safty things since I worked on them.
    > >
    > > Some have water vapour detectors wich sense the peak and stop cooking, I
    > > assume they will stop if nothing is detected.

    >
    > This is a £27 Tesco Value microwave - probably only has legal safety

    requirements.
    >
    > I've already turned it on momentarily with nothing in it, as I'm used to

    an electronic one. If my food has gone cold due to a phonecall etc, I tend
    to shove it in and just turn the timer round to get it to go, then open the
    door after 20 seconds. The electronic ones cancelled the timer when you
    opened the door, but this one turns back on when you shut the door.

    Well, we used to leave them on for 24 hours soak test, if you put anything
    in them it would be long incinerated by then,
    so they were run empty,
    they used to end up real hot but theres probably only about 600W of
    microwave heating power plus losses ofc and theres a fan wich gets rid of
    most of the heat so total temp rise is limited, the only real danger that I
    can see is that it gets so hot the plastic/ferrite door seal melts,
    this is serious becuase it is essential to form a safe seal from microwave
    energy leaking past the door,
    if the electronics gets too hot and melts it should safely blow the fuse and
    so will no work again so should be safe.
    if the magnetron blows up ofc this will probably also blow the fuse and end
    up safe.
    If the fan vent gets blocked this would probably make a meltdown more
    certain.
    ofc we did this in a building with little risk of any fire spreading.

    but I assume theres a maximum limit on the timer ? polly would have to keep
    setting it to max to cuase a problem I would think.
    However this is by no means saying that it is safe, just that it is not
    definatly going to be dangerous.
    I wouldnt dare do that sort of thing these days lol.
    I just hope your parrot doesnt learn how to open the door !

    Colin =^.^=
    colin, Jan 23, 2007
    #11
  12. Peter Hucker

    Geoff Guest

    Peter Hucker wrote:
    > 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)


    They will never reach the button, from inside.

    CDs go really well in microwaves !

    geoff
    Geoff, Jan 23, 2007
    #12
  13. Peter Hucker

    Warren Weber Guest

    "Peter Hucker" <> wrote in message
    news:eek:p.tme3s0ec4buhsv@fx62...
    > 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
    >

    Parrots are smart. One will go inside, next one could shut the door and turn
    it on. Baked parrot for supper?
    Warren Weber, Jan 23, 2007
    #13
  14. Peter Hucker wrote:
    > 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)
    >

    Microwave ovens don't care what you put inside. They do not have
    feedback loops. You can cook a raisin or a melon or nothing at all.
    Snap Whipcrack.............., Jan 23, 2007
    #14
  15. Peter Hucker

    g Guest

    Snap Whipcrack.............. wrote:

    > Microwave ovens don't care what you put inside. They do not have
    > feedback loops. You can cook a raisin or a melon or nothing at all.


    This isn't completely correct. A magnetron running into a perfectly
    matched (lossy) load will see no reflected power. One operating into a
    perfectly reactive load, an open or short for example, will see a large
    reflected signal which will add to the forward wave. The result will be
    higher voltage/current at the tube and a different operating point.

    This is in fact a sort of feedback. It might be possible for the
    tube or PS to fail due to excessive peak voltage or peak current. The
    changed operating point might also cause more heat dissipation in the
    tube or PS.

    g
    g, Jan 23, 2007
    #15
  16. Peter Hucker

    Jon Elson Guest

    g wrote:

    > Snap Whipcrack.............. wrote:
    >
    >> Microwave ovens don't care what you put inside. They do not have
    >> feedback loops. You can cook a raisin or a melon or nothing at all.

    >
    >
    > This isn't completely correct. A magnetron running into a perfectly
    > matched (lossy) load will see no reflected power. One operating into a
    > perfectly reactive load, an open or short for example, will see a
    > large reflected signal which will add to the forward wave. The result
    > will be higher voltage/current at the tube and a different operating
    > point.
    >
    > This is in fact a sort of feedback. It might be possible for the
    > tube or PS to fail due to excessive peak voltage or peak current. The
    > changed operating point might also cause more heat dissipation in the
    > tube or PS.


    Assuming a true, perfect short at the end of the waveguide, then the
    only dissipating
    element left is the filament/cathode of the magnetron. Since there is
    no real waveguide,
    and the oven compartment is far from a perfect short, energy will be
    dissipated in everything,
    metal, plastic, glass, RF seals, etc.

    Jon
    Jon Elson, Jan 23, 2007
    #16
  17. Peter Hucker

    Peter Hucker Guest

    On Tue, 23 Jan 2007 00:53:27 -0000, colin <> wrote:

    > "Peter Hucker" <> wrote in message
    > news:eek:p.tmkkhkha4buhsv@fx62...
    >> On Mon, 22 Jan 2007 14:18:49 -0000, colin <>

    > wrote:
    >>
    >> > "Peter Hucker" <> wrote in message
    >> > news:eek:p.tme3s0ec4buhsv@fx62..
    >> >> 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)
    >> >
    >> > When I designed some of the early mcu controllers for them eons ago
    >> > we used to give them a heck of a lot of abuse such
    >> > as running them empty to try and get the mcu to crash,
    >> > (wich with a piggy back eprom mcu was all too easy)
    >> > ofc always a microwave leakage meter nearby,
    >> > the most spectacular thing was to melt the glass tray,
    >> > the turntable mechanism was the first thing to melt usually.
    >> >
    >> > If theres food inside it will eventually catch fire and the flames will

    > come
    >> > out of the back,
    >> > this was a serious liability worry at the time I assume theyve added

    > some
    >> > safty things since I worked on them.
    >> >
    >> > Some have water vapour detectors wich sense the peak and stop cooking, I
    >> > assume they will stop if nothing is detected.

    >>
    >> This is a £27 Tesco Value microwave - probably only has legal safety

    > requirements.
    >>
    >> I've already turned it on momentarily with nothing in it, as I'm used to

    > an electronic one. If my food has gone cold due to a phonecall etc, I tend
    > to shove it in and just turn the timer round to get it to go, then open the
    > door after 20 seconds. The electronic ones cancelled the timer when you
    > opened the door, but this one turns back on when you shut the door.
    >
    > Well, we used to leave them on for 24 hours soak test, if you put anything
    > in them it would be long incinerated by then,
    > so they were run empty,
    > they used to end up real hot but theres probably only about 600W of
    > microwave heating power plus losses ofc and theres a fan wich gets rid of
    > most of the heat so total temp rise is limited, the only real danger that I
    > can see is that it gets so hot the plastic/ferrite door seal melts,
    > this is serious becuase it is essential to form a safe seal from microwave
    > energy leaking past the door,
    > if the electronics gets too hot and melts it should safely blow the fuse and
    > so will no work again so should be safe.
    > if the magnetron blows up ofc this will probably also blow the fuse and end
    > up safe.
    > If the fan vent gets blocked this would probably make a meltdown more
    > certain.
    > ofc we did this in a building with little risk of any fire spreading.


    Sounds reassuring. But does this also apply to cheap ones?

    > but I assume theres a maximum limit on the timer ? polly would have to keep
    > setting it to max to cuase a problem I would think.


    Most likely they'd turn it slightly, about 5 minutes. When the thing turned on they'd probably get a fright and fly off anyway.

    > However this is by no means saying that it is safe, just that it is not
    > definatly going to be dangerous.
    > I wouldnt dare do that sort of thing these days lol.
    > I just hope your parrot doesnt learn how to open the door !


    I can't see them opening the door. The like to twist and chew stuff. The door requires a hard pull (no button to push).



    --
    http://www.petersparrots.com http://www.insanevideoclips.com http://www.petersphotos.com

    A father is someone who carries pictures where his money used to be.
    Peter Hucker, Jan 23, 2007
    #17
  18. Peter Hucker

    Peter Hucker Guest

    On Tue, 23 Jan 2007 02:37:50 -0000, Warren Weber <> wrote:

    >
    > "Peter Hucker" <> wrote in message
    > news:eek:p.tme3s0ec4buhsv@fx62...
    >> 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
    >>

    > Parrots are smart. One will go inside, next one could shut the door and turn
    > it on. Baked parrot for supper?


    As far as I know they're vegetarian.

    --
    http://www.petersparrots.com http://www.insanevideoclips.com http://www.petersphotos.com

    NEWSFLASH!!! Bouncing elephantiasis woman destroys central Portsmouth
    Peter Hucker, Jan 23, 2007
    #18
  19. Peter Hucker

    Peter Hucker Guest

    On Tue, 23 Jan 2007 16:49:43 -0000, Snap Whipcrack.............. <> wrote:

    > Peter Hucker wrote:
    >> 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)
    >>

    > Microwave ovens don't care what you put inside. They do not have
    > feedback loops. You can cook a raisin or a melon or nothing at all.


    But where do you think the power ends up if it is not absorbed?

    --
    http://www.petersparrots.com http://www.insanevideoclips.com http://www.petersphotos.com

    Q. What's hairy on the outside, wet on the inside, begins with a "C" and ends with a "T"?
    A. A coconut.
    Peter Hucker, Jan 23, 2007
    #19
  20. Peter Hucker wrote:

    (Seriously,
    > they do stuff like that)



    Aha. My Cats like to turn on my Vaccuum cleaner and I get shocked, in
    the first moments. :)

    (Seriously, I have left the Vacuum cleaner connected to the wall-socket
    many times, indeed. But it was never on, when I came back home)
    Daniel Mandic, Jan 23, 2007
    #20
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