How to make a rainbow at home, or the decomposition of white light into a spectrum. How to make a rainbow in Photoshop? Special effects in Photoshop CS5

Everyone likes the rainbow - both children and adults. Its colorful tints attract the eye, but its value is not limited to aesthetics alone: it is also a great way to interest a child in science and turn knowledge of the world into an exciting game! To do this, we invite parents to conduct several experiments with their children and get a real rainbow right at home.

In Newton's footsteps

In 1672, Isaac Newton proved that the ordinary white color is a mixture of rays of different colors. “I darkened my room,” he wrote, “and made a very small hole in the shutter to let in the sunlight.” In the path of the sun's ray, the scientist placed a special triangular piece of glass - a prism. On the opposite wall he saw a multi-colored strip, which he later called a spectrum. Newton explained this by saying that the prism split white light into its component colors. Then he placed another prism in the path of the multi-colored beam. With this, the scientist reassembled all the colors into one ordinary ray of sunlight.

To repeat the experiment of a scientist, you don’t necessarily need a prism - you can use what you have at hand. In good weather, place a glass of water on a table near a window on the sunny side of the room. Place a sheet of plain paper on the floor near the window so that the sun's rays fall on it. Wet the window with hot water. Then change the position of the glass and the sheet of paper until a small rainbow appears on the paper.

Rainbow from the looking glass

The experiment can also be carried out both in sunny and cloudy weather. To carry it out, you need a shallow bowl of water, a small mirror, a flashlight (if there is no sun outside the window) and a sheet of white paper. Immerse the mirror in water, and position the bowl itself so that the sun's rays fall on it (or point a flashlight at the mirror). If necessary, change the angle of objects. In water, light should refract and break up into colors, so that a sheet of white paper can “catch” a small rainbow.

Chemical rainbow

Everyone knows that soap bubbles are rainbow-colored. The thickness of the walls of a soap bubble varies non-uniformly, constantly moving, so its color is constantly changing. For example, at a thickness of 230 nm the bubble turns orange, at 200 nm it turns green, and at 170 nm it turns blue. When, due to water evaporation, the thickness of the wall of a soap bubble becomes less than the wavelength of visible light, the bubble stops shimmering with rainbow colors and becomes almost invisible before bursting - this happens when the wall thickness is approximately 20-30 nm.

The same thing happens with gasoline. This substance does not mix with water, so when it ends up in a puddle on the road, it spreads over its surface and forms a thin film that creates beautiful rainbow stains. We owe this miracle to the so-called interference - or, more simply, the effect of light refraction.

Musical rainbow

Interference causes rainbow tints on the surface of compact discs. This, by the way, is one of the easiest ways to “harvest” rainbows at home. In the absence of sun, a table lamp or a flashlight will do, but in this case the rainbow will be less bright. Simply by changing the angle of the CD, you can get a rainbow stripe, a circular rainbow, and restless rainbow bunnies on a wall or any other surface.

Besides, what is not a good reason to teach your child the basics of musical literacy? After all, Newton initially distinguished only five colors in the rainbow (red, yellow, green, blue and violet), but then he added two more - orange and violet. Thus, the scientist wanted to create a correspondence between the number of colors in the spectrum and the number of notes in the musical scale.

Projector night light

If a temporary solution is not enough for you, you can have a rainbow at home “for real” - for example, using such a miniature projector. It projects a rainbow onto the walls and ceiling - even at night, even on a cloudy day, when invigorating colors are so lacking... The projector can operate in two modes: all colors together, or each separately. On the eve of the New Year holidays, this is perhaps a good gift idea for a child or just a creative person.

Window hanging

Another option for a “rainbow without worries” (which, however, can only be enjoyed during daylight hours, and only in sunny weather) is the so-called rainbow disk, made using modern laser technologies. A glass prism measuring 10 centimeters in diameter is enclosed in a chrome plastic body. It is attached to the window using a suction cup and, transforming sunlight, projects it onto the walls, floor and ceiling of the room. There are 48 color lines in total: red, orange, yellow, green, blue, indigo, purple and everything in between.

Flip book with 3D effect

In the last few years, books with interesting and unusual effects have begun to appear - for example, “flip books” with running pictures. Many of us are familiar with this technology from our own childhood: we drew pictures in the margins of a notebook, and then brought them to life by quickly flipping through the pages. A book based on the principle of this fun was created by Japanese designer Masashi Kawamura. If you quickly flip through it, you can see a voluminous rainbow!

If you wish, you can make a similar handmade rainbow with your own hands, and at the same time clearly demonstrate the animation effect to your child. To do this, you need to print on paper or draw squares of rainbow colors on each page of your notebook. In total you need 30-40 sheets. It is important to take into account that on one side of each page you need to draw them in the usual sequence, and on the other - in the reverse order, otherwise you will not get a rainbow.

Rainbow you can touch

And another fun way to get a rainbow, which will greatly decorate any modern interior, without taking up a centimeter of space and filling it with rainbow radiance. To do this, Mexican designer Gabriel Dawe suggests using skillfully stretched sewing threads. Of course, you will have to tinker with such an installation for an hour or two, but the result is worth it. It is not for nothing that the artist’s works have been a huge success in many countries, including the USA, Belgium, Canada and the UK.

The rain will pass and now a beautiful rainbow has appeared in the sky. You can also see a rainbow above the fountain, near the sprinkler, and if you try and stock up on the necessary supplies, you can make a rainbow yourself at home!

I remember very well when I went to a drawing class as a child, they brought us a triangular glass prism and showed us the magical transformation of a ray of light. A white ray of light, passing through the edges of a prism, breaks up into all the colors of the rainbow. We don’t have a triangular glass prism at home yet, so we use earrings with stones and crystal pendants from a chandelier to make small rainbows.

There is another very simple item that will help you make a rainbow on your wall at home. Don't believe me? Check it out!

Decomposition of white light into a spectrum using a disk

Take:

old CDs,
white paper
flashlight,
It would be nice if it was a sunny day.

We played with the rainbow for a long time, and then the sun hid behind a cloud, then a flashlight came in handy. Only the flashlight made the rainbow less bright.

At the beginning, I wrote that a ray of light, passing through a triangular prism, breaks up into seven colors of the rainbow. The mirror surface of the disc is made of plastic, on which there are numerous grooves. These grooves act like many small prisms placed in a circle. Therefore, when light hits the disk, a rainbow is formed.

Sometimes a rainbow is formed completely by accident, and sometimes you need tools to get it. One day I was drinking tea, and a ray of light entered the glass and turned into a bright rainbow on the wall. But this happened only once: scratch: There was another case when we studied the refraction of a ray of light in water, a rainbow was formed using a transparent plate, filled with water .

If you and your child study the rainbow, don’t forget to add riddles about this wonderful natural phenomenon to the lesson.

You are quite capable of painting the world around you with bright colors. Today we told you how to make a rainbow at home and give your children a lot of positive emotions. Now each of your rooms can have seven colors of the rainbow. Have you played with light? It's time to turn the page and continue the exciting journey into the world of science. I have a GIFT for you. A collection of entertaining experiments with sound. Let science be not only bright for you, but also ringing. See you soon on the pages of Fun Science.

Happy experimenting! Science is fun!

It seems to us that the light is white. But in fact it consists of different colors. It happens that when it rains, the sun comes out, and then the sunlight is refracted in water droplets and “breaks up” into several colors. There are always seven of these colors, and they are arranged in a strict sequence: red - orange - yellow - green - blue - blue - violet. This is how a beautiful multi-colored rainbow appears in the sky.

A how to make a rainbow at home? You don't have to wait for rain to see this natural phenomenon. It can also appear in splashes of water if you water plants in the garden on a bright sunny day.

All children love to draw a rainbow, depicting it with bright, rich colors:

However, in reality, the colors of the rainbow are continuous and smoothly transition from one to another. In reality, they change thousands of shades, which means there are many more than seven of them.

To admire the play of colors and shades, you can experiment and get a rainbow at home.

Homemade rainbow experiments

I. Using sunlight

1. The easiest way

Wait for sunny weather. Take a glass of water and a piece of white paper.

The sequence of your actions should be like this:

2. Method using a mirror and a flashlight

The experiment should be carried out in sunny weather. To carry it out you need a bowl of water, a mirror, a flashlight and a sheet of white cardboard.

The actions are:

Place the mirror in a shallow bowl of water as shown in the picture below;
position the bowl so that a ray of light - from a flashlight or from the sun - is reflected from the mirror onto a sheet of white cardboard;
change the angle of objects if necessary.

In the water, the light should refract and break up into colors, so that a small rainbow will be reflected on the cardboard:

Thus, thanks to sunlight, it is not difficult to obtain a rainbow. But is it possible to “arrange” it with the help of objects of method 2 in the dark?

II. Without using sunlight (in the dark)

So, we decided to conduct an experiment in the bathroom, in complete darkness, using only a flashlight.

We hoped for a positive result, ideally something like this:

But these are expectations :)

The reality is not particularly impressive... Although you can see a circular rainbow. A beam of light from a flashlight reflected from the mirror onto the bathtub:

Here's what an image of a section of the rainbow spectrum looks like on a bathtub:

Overall, the experiment was a success.

Thus, making a rainbow at home is quite possible, even without sunlight. Which is what needed to be proven :)

Magic discs

By the way, there are other ways to get a rainbow at home, even without water. Instead of a mirror, an old CD is perfect for this purpose.

In this article, we will try to figure out whether it is difficult to take photographs with a rainbow effect, and how exactly to do it. It’s not that difficult to open, you just need to choose the most suitable method. After all, if you don’t succeed on the first try, there is always a second, third and subsequent ones, which may well be successful.

How to make a rainbow on your face? It's complicated?

Many who are interested in photography have at least once asked the question: “How to make a rainbow on your face?” This trend appeared thanks to the social network Instagram and it-girl. Some time ago she posted pictures with a rainbow effect on her account. And she literally immediately gained a lot of followers, because most of her subscribers and people who accidentally found her pictures liked the idea with the effect of light refraction. And many wondered how to take a photo with a rainbow on your face. Be that as it may, a trend is a trend. And in this article we will try to figure out whether it is difficult to take photographs with the rainbow effect. What does that require. And how to take a photo with a rainbow on your face. Follow the recommendations in this article. By experiencing the presented methods from your own experience, you will no longer wonder: “How to take a photo with a rainbow on your face?” After all, you will know exactly how to achieve this trendy effect!

Do we catch a rainbow or draw?

First, let's look at the basics: you can get the rainbow effect in a photo in two ways - using reflectors and using photo editors. The first method may seem quite labor-intensive and complicated, which is only partially true, while the second, in turn, will seem easy for those who have at least a little knowledge of Photoshop and photo editors. The first method is partially doomed to fail if you don't have enough patience or hands (which can actually be an obstacle), because the first time you won't necessarily get exactly the effect you expect. To implement the idea, you will need an assistant who will direct the rainbow to the place you need and immediately take pictures. The second method is less risky and less expensive in resources - both human and material, but for it you will need to try to understand photo editors yourself.

Water and mirror

How to make a rainbow on your face using water and a mirror? There are two ways to get the effect. For the first one, we need a dark room with light walls. You need to place the mirror in a bowl of water so that one half of it is in the water and the other half is outside. Then you need to take a flashlight and direct its rays across the mirror so that you eventually see the rainbow as a reflection on the surface of your face. For the second method, you need sunny weather, a light background, the same bowl of water and a mirror. The mirror must again be placed in a bowl of water so that only one half of it is under water and the other half is outside. Place this entire structure next to the window so that the sun's rays fall directly on it. Next, using a white sheet that will act as a light reflector, first catch the rainbow on it, and then, after getting used to it, on the model’s face.

Cup

How to make a rainbow on your face using a glass of water? First, we need an old Soviet faceted glass or its modern stylization (or, for example, a crystal vase from the same era with facets), which needs to be filled with water and placed in front of the window on a sunny day. Next, you need to take a light background and stand in front of a glass of water. After this, you need to wet the window with hot water and adjust the glass of water until you see a rainbow.

Prisms are in use!

If you happen to have prisms in your house, which are usually used in physics lessons, you are absolutely lucky! Such prisms can be in the form of a triangle, ball, cube and other shapes, and by shooting through them, you can achieve the interesting effect of broken or inverted photographs that seem to be in a haze. If, with the help of such a prism, you try to reflect the sun's ray onto your face, you will easily and without much effort get a rainbow effect.

Using CD

How to make a rainbow on your face using a CD? First, find a disc without scratches or scuffs on the mirror side, wipe it thoroughly so that it is not dusty. There are two ways to get a rainbow with it - in a dark and light room. In order to get a rainbow in a gloomy room, you need to shine a flashlight on the disk and reflect it on your face. To get the effect of a rainbow in a bright room, it is enough to catch the sun’s rays on a disk and use it to reflect them onto your face. In order to get a rainbow in motion, if you are shooting video, this method is the most suitable. After all, you can carefully rotate the disk in different directions and watch how the colors move on your face.

Let's draw!

How to create a rainbow effect on your face without using scrap materials? For advanced users of social networks Instagram and Snapchat, this is no longer a secret. After all, in Stories mode you can find a rainbow filter and take a photo or video. The same function is also available in the PicsArt photo editor, where you can find the Rainbow Dreams filter, with which you can draw a rainbow on a photo without resorting to Photoshop. In general, there are many ways.

If you still haven’t decided everything on your face, Photoshop will be the best assistant in this. Knowing how to work with layers in this program, you can easily achieve the desired effect. To do this, you need to create a new layer and use the Gradient tool, select a suitable gradient, the location of the future rainbow, its brightness and saturation.

In this tutorial we will teach you how easy it is to add a rainbow to a photo, and even a double rainbow if you want! Photoshop has a ready-made rainbow gradient. We'll tell you where to find it and how to download it, how to reverse the gradient colors, and what it takes to create a believable double rainbow. Naturally, as in most cases, it is necessary to choose a photo where this special effect will look appropriate. If you find a landscape taken after a storm, even better! We will explain using Photoshop CS5 as an example, but any recent version of the program will be suitable for this lesson.

Here's where we'll start:

And here’s what the same photo with a double rainbow will look like:

Let's start!

Step 1: Add a Clean Layer Blank Layer

Having opened the photo, in the Photoshop layers panel we see that at the moment we have only one layer - BackgroundLayer, which contains our snapshot:

Photo is in layer BackgroundLayer

The first thing we need to do is create a clean layer above it. To do this, click on the icon New Layer at the bottom of the layers panel:

Click on the icon New Layer

Photoshop above the original layer BackgroundLayer adds a new blank layer Layer 1. After double-clicking on the layer name, you can change it; let's call it Rainbow since this is where we will be creating the rainbow. Click Enter (Win) / Return (Mac) to enter a new name:

Let's name the new layer Rainbow

Step 2: Select a Rainbow Gradient

As we already said, Photoshop has a ready-made rainbow gradient. But for it to become available, it must be downloaded manually. To do this, select Gradient Tool in the toolbar:

Choosing a tool Gradient Tool

Then in the options located at the top of the screen, select gradient panel:

Will open gradient editor Photoshop, which is several rows with thumbnails of the gradients available to us. Initially, the rainbow gradient is not there, we will need to load it. Press pointing to the rightarrow, which is located in the upper right corner of the gradient editor:

An additional list appears. We are interested in the item Special Effects . Select it from the list:

Select a set of gradients called Special Effects

Photoshop will ask if you want to replace the previous gradients with new ones or just add a set Special Effects to existing ones. Click Append , to keep the old gradients. New ones will be added below:

Choose Append to get gradients from the list Special Effects added to the old ones

From the set that appears, we are interested in Russell's Rainbow , he is the last one at the bottom. If you have Photoshop tooltips enabled (they are enabled by default), this option is configured in the menu item Preferences), then when you hover your mouse over the gradient thumbnail you should see the inscription Russell's Rainbow. Select it by clicking on this thumbnail and then click OK to close the gradient editor:

Select a gradient by clicking on the thumbnail Russell's Rainbow

Step 3: In the Options Bar, select Radial Gradient

To draw exactly the arc, go back to the options panel located at the top of the screen and select radial gradient:

Step 4: Draw a Rainbow Using the Tool Gradient Tool

To add a rainbow, we have to stretch the gradient in the photo. We want our rainbow to appear to touch the ground behind the group of trees on the left side and rise above the largest tree on the right. To do this, we will place the mouse cursor almost at the very edge in the lower right corner, on the same horizontal line as the lower trees on the left. By clicking there, we will set the starting point of the gradient and, still holding the mouse button, draw a line through the entire photo to a point slightly behind the left group of trees. If we hold down the key Shift , the direction of movement will be limited, and it will be easier to draw a straight horizontal line:

When you release your mouse button, Photoshop will draw a rainbow. So far it doesn’t look much like the real thing, but this is just the beginning:

Step 5: Change the blending mode of the rainbow layer to Screen

On the list blending modes, which is located in the upper left corner of the layers panel (it is a drop-down menu, where the default option is set to Normal), select Screen :

Change the blending mode of the rainbow layer to Screen

Now the rainbow in the photo began to look more organic:

Rainbow after changing the layer blending mode to Screen

Step 6: Apply a filter Gaussian Blur

Let's make the rainbow even more realistic by smoothing out the transition between colors. From the menu at the top of the screen, select Filter , then Blur , then Gaussian Blur :

Open Filter > Blur > Gaussian Blur

Photoshop will open a dialog box Gaussian Blur. Move the slider to the right Radius , located at the bottom of the dialog box, and the colors of the rainbow will become more blurred. Don't forget to evaluate the changes occurring in the photo. Continue moving the slider until the transition between the colors of the rainbow becomes soft and natural. Index Radius will largely depend on the size and resolution of your photo. In our case, the appropriate value is 50 pixels. When finished, click OK, and the dialog box will close:

Moving the slider Radius, we make the transition between the colors of the rainbow softer

This is what our photo looks like after applying the filter Gaussian Blur:

With filter Gaussian Blur the rainbow looks more like a real one

Step 7: Add a Layer Mask

Click on the icon Layer Mask at the bottom of the layers panel:

Click on the icon Layer Mask

Nothing has happened to the photo yet, but Photoshop has added a layer mask thumbnail to the right of the main layer thumbnail Rainbow. If you look closely, you will notice a white outline around the mask thumbnail. This indicates that the mask is currently active, and not the layer itself:

Step 8: Select a Gradient from black to white

When a tool is selected Gradient Tool right click(Win) / click and hold the key Control (Mac) The Document window immediately opens the Gradient Presets panel, the same one we just saw in the Gradient Editor dialog box. Choosing a gradient Black to White gradient , by clicking on its thumbnail (top row, third from left). Then click Enter (Win) / Return (Mac) and the gradient list will close:

Click on the gradient thumbnail from black to white

Step 9: In the Options Bar, Select Linear Gradient

Return to the options panel and this time select Linear Gradient :

Click on the gradient icon Linear

Step 10: Stretch the Gradient from black to white by layer mask

The further from the ground, the brighter a real rainbow appears, so we will create the same feeling by stretching the gradient from black to white from the base of the rainbow (where it should touch the ground) to the very top. With the selected instrument Gradient Tool We will move the cursor to the bottom border of the left group of trees and press the mouse button. Then, without releasing it, press Shift and draw a vertical line to the top. Holding Shift, It’s easier to draw a strictly vertical line:

Stretch the gradient from black to white from the base of the rainbow to the top of the frame

When you release your mouse button, Photoshop will stretch the gradient from black to white. Since we are working with the layer mask, and not with the layer itself, we will not see the gradient in the photo. But now there is a feeling that the rainbow begins not from below, but from the trees, and the closer to the sky, the brighter it becomes:

Step 11: Create a Duplicate Rainbow Layer to Increase Its Brightness

To make the rainbow brighter, just click Ctrl+J (Win) / Command+J (Mac) and a duplicate layer will appear. If now it seems to you that she has become too much bright, tone it down a little by lowering the opacity of the duplicate. This option Opacity , is located directly opposite the option Blend Mode at the top of the Layers panel. We will reduce it to 70%:

Click Ctrl+J(Win) / Command+J(Mac) to create a copy of the rainbow layer, and reduce the opacity of the duplicate if necessary

This is what we got after creating a copy of the layer and lowering its opacity:

Step 12: Merge Two Rainbow Layers

Let's clean up the layers panel by merging the two rainbow layers. Grouping related layers makes it easier to navigate the Layers panel. Select the top layer and hold Shift , click on the second rainbow layer Rainbow, which is located just below to highlight both at once. You'll see that they're both now highlighted in blue:

Open in the top menu Layer and choose Group Layers :

Opening Layer > Group Layers

Photoshop will merge the two selected layers. In the layers panel they will be called Group 1. By default, the group is closed, we do not see the layers that it includes, while this suits us:

Now both layers containing the rainbow are in a group Group 1

Step 13: Add a Clean Layer Blank Layer

We have our first rainbow. Let's now add a second one to make it double! First, let's create another layer by clicking on the icon New Layer at the bottom of the layers panel:

It will appear in the Layers panel above the grouped layers. After double clicking on the layer name, rename it to Second rainbow, then click Enter (Win) / Return (Mac) to save this name:

Let's name the new layer Second rainbow

Step 14: Selecting the Gradient Again Rainbow Gradient

Then, in the options located at the top of the screen, open again gradient panel:

Gradient currently selected from black to white

When the Gradient Editor opens, select again Russell's Rainbow , that is, a rainbow, but don’t close the gradient editor yet. We need to make some changes:

Selecting the gradient again Russell's Rainbow

Step 15: Changing the Order of the Gradient Colors

In a real double rainbow, the colors are always in the opposite order, which means we need to change the colors in our gradient too. If the Gradient Editor is still open, directly below the Preview panel you will find blue slider; move it to the left. Then do the same with green And yellow sliders. It doesn't matter how far to the left you move them, as long as there is some distance between them. Just make sure they don't stick together. And leave the red one in place:

Now click on red slider and enter in the field Location meaning 82 % . After this, the red slider will go where the blue one was originally:

By selecting the red slider, in the field Location enter the value 82%

Then click on yellow and set the value Location 85% . Yellow replaces green:

By selecting the yellow slider, in the field Location enter the value 85%

Pressing green, in field Location enter 88% , and it will move to the yellow position:

By selecting the green slider, in the field Location enter the value 88%

And finally we choose blue slider and change the value in the field Location on 92% , thus placing it where red used to be:

By selecting the blue slider, in the field Location enter the value 92%

Directly above the gradient preview panel are other sliders: white, black, and different shades of gray. They determine how much the colors appear through the gradient (opaque). Press light gray slider(second from left) and change the value Opacity from 20 to 0% . Then click OK, and the gradient editor will close:

Selecting the light gray slider, set its opacity value Opacity 0%

Step 16: Stretch Another Rainbow Gradient

With the colors of the gradient reversed, we're ready to move on to creating the second rainbow. First, we will temporarily hide the first rainbow from view by clicking on icon visibility (eye) in the layers panel:

Icon visibility makes layers or layer groups visible or invisible

Then we will stretch the gradient of the rainbow, as in step 4. To do this, select in the options bar radial gradient so that we get an arc:

Select the option again Radial Gradient

Then, by clicking on the button, we will draw a line through the same points as the first time:

When we release the mouse button, Photoshop draws a gradient. It's very similar to the first one, only this time the colors are in a different order:

Step 17: Change the layer blending mode to Screen

As with the first rainbow, we change blending mode With Normal on Screen :

Change the layer blending mode to Screen

Now the colors of the rainbow in the photo began to look more organic:

Blending mode for the second rainbow - Screen

Step 18: Apply a Filter Gaussian Blur

Since the last time we worked with the filter Gaussian Blur , Now we can quickly apply it with the same settings by clicking Ctrl+F (Win) / Command+F (Mac). Just like last time, the transition between the colors of the rainbow becomes softer and more natural:

Step 19: Copy the Layer Mask onto the Second Rainbow Layer

Now we need to add a layer mask and draw a linear gradient again from black to white, to hide the bottom of the rainbow, starting from where it touches the ground, and the brightness should increase as it gains height. We did the same with the first rainbow in steps 7-10. But why bother again if you can simply copy the existing mask onto the layer with the second rainbow! First of all, you need to open a layer group by clicking on the triangle to the left of the group name:

Expanding the group, you see two layers with the first rainbow. Now, holding Alt (Win) / Option (Mac), click on the layer mask thumbnail Rainbow copy and drag it onto the layer with the second rainbow:

Holding Alt(Win) / Option(Mac), drag the layer mask thumbnail onto the top layer

When you see a selection around the layer SsecondRainbow(this is shown in the previous screenshot), release the mouse button. Photoshop will copy the layer mask onto the second rainbow layer:

Looking at the document window, you will see that the second rainbow, reaching the trees, becomes barely noticeable, like the first:

Step 20: Putting the Second Rainbow in Place

Now all that remains is to correctly position the second rainbow. In the Photoshop toolbar, select Move Tool or press V on keyboard:

Choosing a tool Move Tool

Before moving anything, you need to “turn on” the first rainbow again, which requires clicking on the icon visibility in the layers panel:

When both rainbows are visible, we use the tool Move Tool Click the mouse on the frame and, holding the button, move the second rainbow. We'll move it to the left so that only a small area in the upper left corner remains visible: