Heat Lens
On putting both our hand on the red hand mark and wait for a while we will notice that the left palm feels hotter than the right palm although no light is received on the left palm. The lamps are both of the same wattage and both emits visible light rays as well as invisible heat rays. The glass flask on the right contains water, which allows light to pass through it, but blocks heat rays. Behaving as a spherical lens, it focuses light rays on our palm. The other flask contains a chemical compound, which allows heat rays to pass through while blocking light rays. The spherical shape of its container converges the heat rays on to our palm, and hence we fell hot.
Wing
Category
Ñion ia u switch shisien bad sa pyllait noh ia u. Mynta buh ia ki sla kti jong phi ha kito ki dak kti ba la ai rong saw. Ap shipor bad phin shem ba ka kti kadiang ka sdang ban khluit haba ia nujor bad ka kti kamon watla ki kjat jingshai kim wan sha ka kti kadiang. Ki sharak ki long kiba don kat juh ka bor elektrik, ki kjat jingshai bad ki kjat jingkhluit ki bym lah ban iohi. U klong bilor uba sha ka kamon u don ka um kaba ai lad ia ki kjat jingshai ban ksam lyngba hynrei ka khang lad pat ia ki kjat jingkhluit ban ïaid lyngba jong ka. Kum ki iit ‘spherical lens’ ka ai lad ïa ki kjat jingshai ban wan ha ka sla kti jong phi. Uto uwei u klong bilor pat u don ka jingkhleh dawai kaba ai lad ia ki kjatjingkhluit ban iaidlyngbajong ka watla ka khang lad ia ki kjatjingshai ban iaid lyngba. Ka jingpyllun jong une u bilor ka pynlong ia ka ban shat ia kane ka jingkhluit sha ka sla kti jong phi bad dei namar kane ka daw ba ka kti kadiang ka khluit.
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