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    Privacy˙Terms˙
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    light source

    US /laɪt sɔrs/

    ・

    UK /lait sɔ:s/

    B2
    n.NounAn object or device that produces light.
    The sun is a natural light source.

    Video subtitles

    How screens actually affect your sleep

    06:39How screens actually affect your sleep
    • When we use our phones, we're staring directly into a light source,

      When we use our phones, we're staring directly into a light source,

    • In fact, you experience a closer light source as four times more powerful than that same light source twice the distance away from you.

      In fact, you experience a closer light source as four times more powerful than that same light source twice the distance away from you.

    B1

    Look Great in Photographs

    02:36Look Great in Photographs
    • Look at a light source, like a lamp or light for a few moments.

      Look at a light source, like a lamp or light for a few moments.

    B1

    How to Pack for Summer Camp ? How to Summer Camp

    03:08How to Pack for Summer Camp ? How to Summer Camp
    • Most campers bring flashlights to summer camp, but you can customize your light source to your own experience.

      Most campers bring flashlights to summer camp, but you can customize your light source to your own experience.

    • But you can customize your light source to your own experience.

      But you can customize your light source to your own experience.

    B1

    The Color Temperature Paradox

    04:22The Color Temperature Paradox
    • It's just a quirk of history and physics that the color of lighting was first determined almost exclusively by the temperature of the light source.

      It's just a quirk of history and physics that the color of lighting was first determined almost exclusively by the temperature of the light source.

    • It's just a quirk of history and physics that the color of lighting was first determined almost exclusively by the temperature of the light source.

      It's just a quirk of history and physics that the color of lighting was first determined almost exclusively by the temperature of the light source.

    B1

    HOUSEPLANT CARE TIPS FOR BEGINNERS » + printable guide

    08:26HOUSEPLANT CARE TIPS FOR BEGINNERS » + printable guide
    • They like it when the water is at room temperature So we all know that house plants need soil and good light and some water in order to thrive But one thing that can commonly be missed is the fertilizer which is the plant's food and every plant is different But in the spring and summer usually they need to be fed every two to four weeks I usually do it every two weeks, but in the winter it's in its rest period So usually they don't need any feeding at all during that time I just use this universal liquid variety that works on all of our house plants Some plants work well in the Sun some work well in the shade But regardless all of them need some source of natural light now in the darker winter months You might need to move your plants towards a light source But generally speaking plants don't like to be moved they get accustomed to the environment that they're in so move your plants if you have to But otherwise just let them be The Other consideration with plants is the temperature you want to make sure you keep it within a range that it's comfortable at keep in mind That plants in front of windows see pretty varying temperatures depending on the weather outside As well as plants that are by air conditioning units or radiators now if you find this all really Overwhelming to keep track of we actually created a free PDF for you that might help out a little bit in addition to some tips There's a page that you can use to Document the needs of each of your plants that you can then later refer to in case you've forgotten And there's also a plant watering tracker so to get your PDF check out the link in the description box below Insects and bugs love dead and decaying foliage So be sure to remove any rotting or dying leaves that are just sitting on top of the soil and whenever I see leaves that Are visibly about to die I just prune the plant by cutting these off so they don't steal essential nutrients from the leaves that are continuing to thrive While you're watering your plants just take a quick second to inspect the leaves to see if there's any signs of any insects or bugs And if there are you want to deal with these right away?

      They like it when the water is at room temperature So we all know that house plants need soil and good light and some water in order to thrive But one thing that can commonly be missed is the fertilizer which is the plant's food and every plant is different But in the spring and summer usually they need to be fed every two to four weeks I usually do it every two weeks, but in the winter it's in its rest period So usually they don't need any feeding at all during that time I just use this universal liquid variety that works on all of our house plants Some plants work well in the Sun some work well in the shade But regardless all of them need some source of natural light now in the darker winter months You might need to move your plants towards a light source But generally speaking plants don't like to be moved they get accustomed to the environment that they're in so move your plants if you have to But otherwise just let them be The Other consideration with plants is the temperature you want to make sure you keep it within a range that it's comfortable at keep in mind That plants in front of windows see pretty varying temperatures depending on the weather outside As well as plants that are by air conditioning units or radiators now if you find this all really Overwhelming to keep track of we actually created a free PDF for you that might help out a little bit in addition to some tips There's a page that you can use to Document the needs of each of your plants that you can then later refer to in case you've forgotten And there's also a plant watering tracker so to get your PDF check out the link in the description box below Insects and bugs love dead and decaying foliage So be sure to remove any rotting or dying leaves that are just sitting on top of the soil and whenever I see leaves that Are visibly about to die I just prune the plant by cutting these off so they don't steal essential nutrients from the leaves that are continuing to thrive While you're watering your plants just take a quick second to inspect the leaves to see if there's any signs of any insects or bugs And if there are you want to deal with these right away?

    • Now in the darker winter months, you might need to move your plants towards a light source,

      Now in the darker winter months, you might need to move your plants towards a light source,

    A2

    「ストリートアート」を12段階の難易度で実演 | Levels | WIRED Japan

    12:12「ストリートアート」を12段階の難易度で実演 | Levels | WIRED Japan
    • You can do gradations from dark to light, but also you can do highlights that really accentuate and give it body or roundness or even reflection of a light source.

      You can do gradations from dark to light, but also you can do highlights that really accentuate and give it body or roundness or even reflection of a light source.

    • but also you can do highlights that really accentuate and give it body or roundness or even reflection of a light source.

      but also you can do highlights that really accentuate and give it body or roundness or even reflection of a light source.

    B1

    Charge Your Phone With A Solar Powered Bikini!

    03:42Charge Your Phone With A Solar Powered Bikini!
    • you don't need natural sunlight to charge it. Any light source will work, including

      you don't need natural sunlight to charge it. Any light source will work, including

    • any light source will work, including a desk lamp.

      any light source will work, including a desk lamp.

    B1

    Diffraction | Fresnel and Fraunhofer Diffraction | Fresnel Diffraction | Diffraction of light

    02:59Diffraction | Fresnel and Fraunhofer Diffraction |  Fresnel Diffraction | Diffraction of light
    • In Fresnel diffraction, the light source and the screen are relatively close to the obstacle.

      In Fresnel diffraction, the light source and the screen are relatively close to the obstacle.

    • In Fresnel diffraction, the light source and the screen are relatively close to the obstacle.

      In Fresnel diffraction, the light source and the screen are relatively close to the obstacle.

    C1

    NEVER TOO SMALL: Architect’s Blue Mountains Cabin, Sydney 28sqm/310sqft

    08:58NEVER TOO SMALL: Architect’s Blue Mountains Cabin, Sydney 28sqm/310sqft
    • The glaze component of the window is located to provide a light source and to provide a view of the mountain from bed.

      The glaze component of the window is located to provide a light source and to provide a view of the mountain from bed.

    B1

    How ASML Makes Chips Faster With Its New $400 Million High NA Machine

    17:25How ASML Makes Chips Faster With Its New $400 Million High NA Machine
    • Inside, all the same processes still happen with the same EUV light source.

      Inside, all the same processes still happen with the same EUV light source.

    • Inside, all the same processes still happen with the same EUV light source, but there's one key difference.

      Inside, all the same processes still happen with the same EUV light source, but there's one key difference.

    B1