You can choose anywhere between 1-4 colors to include in your project. For example, you could use 4 sheets of the same color for a monochromatic look. However, the layering in this project looks even more impressive and eye-catching with multiple colors!  Try a dual color scheme, which requires 2 sheets in 1 color and 2 sheets in another color, or go for a rainbow effect with 4 sheets, each one in a different color. If it’s your first time making this project, try using 4 different colors. This will make it easier to tell the pieces apart! You can use any size you want, but a 6 by 6 in (15 by 15 cm) square generally works best because it will let you fold several full rotations. Origami paper works best for this project, but you can use any kind of paper as long as it’s thin and stiff enough to hold a crease.  For example, you could use printer paper or sketching paper. Avoid using cardstock or construction paper, which are too thick for creating multiple folds. If your papers aren’t square already, you can cut them down to squares by folding the upper right corner of the paper down until it lines up with the left edge of the paper. Carefully cut off the excess paper at the bottom. If you’re using origami paper, the colored side of the paper should be facedown. If you’re using a different kind of paper, make a small pencil mark on the side facing up. This will help you remember which side should be face-up as you fold. Remember to line your edges up and make your folds as clean as possible. Once you’ve finished 4 identical units, you’re ready to start putting them together.

Summary: Choose a color scheme for your espiral. Gather your 4 square sheets of origami paper. Lay 1 square in front of you, white side up. Repeat the process on the other 3 papers to form 4 units in total.


In order to figure out the problem with a non-working Mac hard drive, you'll have to remove the drive from your Mac, plug it into a USB adapter, and plug the adapter into a working Mac computer.  Most Mac hard drives will use SATA connections, so you'll need a SATA to USB or USB-C adapter. It's a menu item at the top of the screen. A drop-down menu will appear.  If you don't see this menu item, first click the desktop or open Finder. You'll find this in the Go drop-down menu. The Utilities folder will open. Double-click the Disk Utility app, which resembles a grey hard drive with a stethoscope on it. Click the name of the attached hard drive in the left-hand sidebar to do so.  If the hard drive doesn't appear here, it may be too damaged to read at all. You should take it into a repair service to have it checked for recovery options. It's a tab near the top of the window. You'll see this prompt appear at the top of the window. Once Disk Utility finishes scanning the drive, it will provide you with a list of drive issues, at least one of which may be responsible for the drive's failure.  You will most likely receive a message saying that the hard drive is about to fail. If possible, back up the hard drive—you cannot repair it from this point. If your hard drive shows more than a couple of significant errors, chances are that it needs to be repaired physically. You'll need a tech professional to repair your hard drive for you.  In most cases, the repair service will only be able to recover data off of the hard drive; you most likely won't be able to use the hard drive again.
Summary: Attach the non-working hard drive to a working Mac computer. Click Go. Click Utilities. Open Disk Utility. Select the attached hard drive. Click First Aid. Click Run when prompted. Review the results. Take your hard drive into a professional repair service.