Thames & Kosmos Wow in the World: Light-Up Terrarium handleiding

Niet gecategoriseerd

Thames & Kosmos

12 pagina's

PDF beschikbaar

Handleiding

Phosphors make things glow

solid substance

that

lights up when exposed

to energy,

like light or electricity, is called a

phosphor. A phosphor can be phosphorescent,

which

stays glowing

after the energy source

is removed, or fluorescent, which

only glows

while the energy is present

and for a brief

moment after. Conventional glow sticks

and glow-in-the-dark stars are made using

phosphors. In this kit, the stars, moon, and

pebbles are phosphorescent, while some of the

other materials exhibit uorescence.

Why do phosphors

light up?

The

energy

from the

UV light

causes the electrons in the atoms

of phosphors to jump up to a

higher energy level.

When they

fa back down,

they

release light

energy,

or photons, which we can see. When the

UV lights are on, they provide a continuous cycle

of energy to excite the electrons and make the

phosphors in uorescent materials glow steadily.

When the lights are turned off, these phosphors

stop glowing. In phosphorescent materials,

some of the electrons are able to remain in a

heightened energy level for some length of time

before dropping down to their original level,

allowing these materials to glow for a while after

the UV light is turned off.

To see the terrarium’s glowing effects

in action, put the terrarium in a darkened

room and turn on the UV LED lights. The

UV LEDs will cause the phosphorescent

and uorescent materials to glow.

Can plants grow with just UV

light? No. Plants need blue

and red light in order to grow.

However, some UV light can help

plants grow bigger and stronger.

We usually see plants as green

because they reect green light,

absorbing red and blue light as

energy for photosynthesis.

“It’s glow

time!”

“What is foss-

for-essence?”

WHAT MAKES WHAT MAKES

IT GLOW?IT GLOW?

Fluorescent:

Banana pls, laundry

detergent, and turmeric

PHOSPHORESCENT:

Glow-in-the-dark PLASTICS

AND GLOW STICKS

Bekijk gratis de handleiding van Thames & Kosmos Wow in the World: Light-Up Terrarium, stel vragen en lees de antwoorden op veelvoorkomende problemen, of gebruik onze assistent om sneller informatie in de handleiding te vinden of uitleg te krijgen over specifieke functies.