if a small magnifying glass will burn
things with sunlight how much power
could you get from a lens as big as you
in this project we’re hacking open a
rear projection TV because that’s where
you can find one of these amazing solar
Scorchers for free
[Music]
to get started the first thing I’m going
to do is log online to my local
classifieds and search for a free
big-screen TV these TVs are way outdated
and usually cost more to repair than
they’re worth
so loads of people are trying to get rid
of them I can already see one here it’s
a 50 inch Toshiba and it looks like it’s
about 13 years old everything works
except the color and that’s okay because
I don’t really intend to watch TV with
it these TVs are humongous and very
heavy so I’m gonna need a truck and a
little help now here’s my brother with
his truck he’s gonna help me out today
it’s about lunchtime and he’s on his
break we’ve just arrived at this lady’s
house and stepped inside to thank her
for donating her free TV the price was
certainly right and I’m a happy customer
now you got to watch out these TVs could
be a couple hundred pounds so I don’t
recommend lifting them on your own
luckily this TV has rollers so we’ll
roll it over to the truck and load it
with the screen facing up we don’t
really care too much about the condition
this travels in as long as the screen is
protected now it’s time to head back
home and start hacking this TV apart
load the TV from the back of the truck
it’s very heavy
and unfortunately my brother’s back at
work so I’m unloading it by myself
but it’s down now there’s some success
the TV is now in my backyard and I can
get to work first thing I’m gonna do is
remove this speaker guard to expose the
speakers and I can take these and remove
them for a future project these are 8
ohm speakers and I’m sure I can find a
good use for them now just above the
speakers I found a couple of tabs
holding the screen in place after
removing the two screws on each side the
screen lifts straight up and pops off
exposing the inside of the TV you can
see at the bottom the red green and blue
cathode ray tubes with their respective
lens casings as well as a nice big
mirror now since this mirror is used for
projection it’s super reflective so I’m
going to remove the screws holding that
in place and save it for a different
project
this TV screen has three separate layers
it’s hard to see but the front layer is
a large piece of plexiglass that can be
useful the middle layer is a vertical
line plastic and this back piece is a
giant virgin Fornell lens this is the
piece that I’m after I got lucky because
this one happens to be a crystal clear
lens that focuses to a point and that’s
the best that I know of it may not look
like much but this is a giant 4-foot
magnifying lens the amount of energy
these lenses can generate is outstanding
producing temperatures over 2,000
degrees Fahrenheit they can be used for
heating cooking purifying water and
burning almost anything that you can
imagine amazingly they do all that just
off sunlight now that I got the lens I
was after I’m gonna play around with
some of these other pieces on the TV
these projection lenses the caster
wheels and the power cord can all be
saved and just for fun I’m gonna take
one of these lens cases and hack it open
to see what’s inside I’m gonna save
these nuts and bolts then cut down the
side of the casing here when it’s
cracked open you can see about five
different optical lenses now these are
really neat because they’re in perfect
condition and I may be able to use them
in future light experiments
most of them are plastic but this
focusing lens right here is pure glass
it’s quite heavy and the optics on it
are amazing if I focus it on my table as
if I’m trying to burn the table you can
see it brings into focus the compact
fluorescent lights that I’m using two
lights room I thought that was kind of
interesting okay I’ve got the giant fern
Ellen’s separated from the frame now you
can see it’s quite flimsy and awkward to
hold so I think I’m gonna need to build
some kind of a frame so I can use it
hands-free look for that in a different
project well there you have it now you
know the secret to finding a giant fern
L lens absolutely free now a word of
caution these lenses generate a lot of
power they can concentrate the Sun to a
point that gets dangerously high it’ll
start fires instantly melt concrete and
can certainly cook you so please be
careful that’s it for now if you liked
this project perhaps you’ll like some of
my others check them out at the king of
random calm
[Music]
you
[Music]
things with sunlight how much power
could you get from a lens as big as you
in this project we’re hacking open a
rear projection TV because that’s where
you can find one of these amazing solar
Scorchers for free
[Music]
to get started the first thing I’m going
to do is log online to my local
classifieds and search for a free
big-screen TV these TVs are way outdated
and usually cost more to repair than
they’re worth
so loads of people are trying to get rid
of them I can already see one here it’s
a 50 inch Toshiba and it looks like it’s
about 13 years old everything works
except the color and that’s okay because
I don’t really intend to watch TV with
it these TVs are humongous and very
heavy so I’m gonna need a truck and a
little help now here’s my brother with
his truck he’s gonna help me out today
it’s about lunchtime and he’s on his
break we’ve just arrived at this lady’s
house and stepped inside to thank her
for donating her free TV the price was
certainly right and I’m a happy customer
now you got to watch out these TVs could
be a couple hundred pounds so I don’t
recommend lifting them on your own
luckily this TV has rollers so we’ll
roll it over to the truck and load it
with the screen facing up we don’t
really care too much about the condition
this travels in as long as the screen is
protected now it’s time to head back
home and start hacking this TV apart
load the TV from the back of the truck
it’s very heavy
and unfortunately my brother’s back at
work so I’m unloading it by myself
but it’s down now there’s some success
the TV is now in my backyard and I can
get to work first thing I’m gonna do is
remove this speaker guard to expose the
speakers and I can take these and remove
them for a future project these are 8
ohm speakers and I’m sure I can find a
good use for them now just above the
speakers I found a couple of tabs
holding the screen in place after
removing the two screws on each side the
screen lifts straight up and pops off
exposing the inside of the TV you can
see at the bottom the red green and blue
cathode ray tubes with their respective
lens casings as well as a nice big
mirror now since this mirror is used for
projection it’s super reflective so I’m
going to remove the screws holding that
in place and save it for a different
project
this TV screen has three separate layers
it’s hard to see but the front layer is
a large piece of plexiglass that can be
useful the middle layer is a vertical
line plastic and this back piece is a
giant virgin Fornell lens this is the
piece that I’m after I got lucky because
this one happens to be a crystal clear
lens that focuses to a point and that’s
the best that I know of it may not look
like much but this is a giant 4-foot
magnifying lens the amount of energy
these lenses can generate is outstanding
producing temperatures over 2,000
degrees Fahrenheit they can be used for
heating cooking purifying water and
burning almost anything that you can
imagine amazingly they do all that just
off sunlight now that I got the lens I
was after I’m gonna play around with
some of these other pieces on the TV
these projection lenses the caster
wheels and the power cord can all be
saved and just for fun I’m gonna take
one of these lens cases and hack it open
to see what’s inside I’m gonna save
these nuts and bolts then cut down the
side of the casing here when it’s
cracked open you can see about five
different optical lenses now these are
really neat because they’re in perfect
condition and I may be able to use them
in future light experiments
most of them are plastic but this
focusing lens right here is pure glass
it’s quite heavy and the optics on it
are amazing if I focus it on my table as
if I’m trying to burn the table you can
see it brings into focus the compact
fluorescent lights that I’m using two
lights room I thought that was kind of
interesting okay I’ve got the giant fern
Ellen’s separated from the frame now you
can see it’s quite flimsy and awkward to
hold so I think I’m gonna need to build
some kind of a frame so I can use it
hands-free look for that in a different
project well there you have it now you
know the secret to finding a giant fern
L lens absolutely free now a word of
caution these lenses generate a lot of
power they can concentrate the Sun to a
point that gets dangerously high it’ll
start fires instantly melt concrete and
can certainly cook you so please be
careful that’s it for now if you liked
this project perhaps you’ll like some of
my others check them out at the king of
random calm
[Music]
you
[Music]
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