Chrome and Smart Keys look similar, but Chrome Keys belong to newer Mercedes cars. Chrome Keys have a metal casing, but Smart Keys are generally made of plastic. Although Chrome and Smart Keys operate in a similar way, their batteries are changed in different ways. The current Chrome key model has a red triangle for its panic button. The words "panic" should be written on this button in capital letters. If you have the latest Chrome key, purchase one CR 2025 battery before you open its case. All Chrome key batteries are changed in the same way, but older models need 2 CR 2025 batteries instead of one. Unlike newer models, older Chrome keys have a circular panic button with the word "panic" inscribed in white letters. Newer and older Smart Keys will have a black plastic casing. Although all Smart Key batteries are changed in the same way, newer Smart Keys have a red panic button identical to older Chrome keys while first model Smart Keys do not. Smart Keys need 2 CR 2025 batteries. The first Smart Key model does not have a panic button.

Summary: Distinguish between a Chrome or Smart Key. Spot the latest Chrome model by its red triangular button. Look for a circular panic button on older Chrome keys. Check for a plastic casing on Smart Keys.

You can house your jellyfish in an aquarium tank that is clean and sterile. You may decide to have only one to three small jellyfish in a small tank that you can fit on your desk at work or at home. Or, you may go for a medium sized aquarium tank that can fit a larger number of jellyfish. Look for a tank that is circular in shape or tall and narrow. A tank that is circular, with a flat base, is ideal as the shape can allow your jellyfish to float in the tank water. This is essential for the health and happiness of your jellyfish. The other option is to buy a tank kit that is made specifically to house jellyfish. These tanks come in a small size, which is usually circular in shape to house one to three small jellyfish. You can also get tall, narrow tanks for a larger number of jellyfish. You can purchase jellyfish tank kits online or at your local pet store. Keep in mind jellyfish tank kits are not cheap, ranging from $350 - $600. You may want to try using an aquarium tank instead to save money on your set up. Most jellyfish tank kits come with the supplies necessary for setting up the tank. If you are using a fish aquarium to house your jellyfish, you will need to purchase several other supplies, including: An air pump An undergravel filter plate An air tube Airline tubing Substrate for the bottom of the tank, such as glass beads An LED light An LED remote control (optional)

Summary: Look for a small to medium sized aquarium tank. Buy a jellyfish tank kit. Get the other necessary supplies.

This cylinder can be either glass or plastic, and should be at least 12 inches tall. The shape is important: if the top is wider than the bottom (or narrower) it will require much more calculation and measurement. It doesn't actually matter how wide container is, so long as it's the same diameter all the way through. As the volume of the container gets biggerfrom say, a coke can to a mop bucketso does the area which collects the rain. Because of this, one inch of rainfall will be recorded consistently between cylinders of varying sizes. If you don't have a cylinder on hand, you can make an equally effective gauge with an empty 2-liter soda bottle and little work. Using scissors or a knife, cut the top 4 inches of the bottle off. Don't worry about the uneven bottom of the bottle. That will be taken care of in the next step. Because rain will often be accompanied by wind, you'll want to steady your gauge so that it can stay upright through a storm. Fill the bottom with pebbles or marbles, but don't go higher than an inch or so. Once that's been done, you'll want to fill your container with water, to provide a level starting point for your scale. Your weights will be taking up volume, and so we don't want them included in the measurable area. Rocks, stones, marbles: any small, relatively heavy objects will do, as long as it won't absorb any of the water. If you've created your own gauge with a soda bottle, make sure the entire bottom (the four separated points of the base) is filled with water and stones, to provide a flat starting point for your scale. As an alternative to placing pebbles in your gauge, you could place it within a sturdy container, such as a heavy bucket or flowerpot. This can be done with a waterproof sharpie. Hold a ruler or measuring tape up against your bottle, and line its zero up with the current water level of your gauge. Your scale's zero should also be at this water level. If you've opted to go pebble-free and are going to place your rain gauge inside a flower pot, you won't have any water in your gauge yet. In this case, zero will be at the bottom of your container. You need level ground to lessen the chance of your gauge tipping over. Ensure your gauge has no obstructions above it, e..g trees or eaves, as these will disrupt your measurements.

Summary: Find a clear, cylindrical container. Make a container. Weigh your gauge down with pebbles. Inscribe a scale upon your container. Place it under the open sky, on level ground.

As a professional tattoo artist, you'll be expected to sketch out, sometimes start to finish, the designs your clients want. This will require you to be skillful at reproducing many different kinds of styles, which can only really be mastered through experience and repetition. Work on transitioning from pencil to pen, which has a more permanent feel. Apples, oranges, and other contoured items, like rocks, can simulate some of the difficulties you'll have tattooing various parts of the body. Seek out items that somewhat resemble body parts commonly tattooed, so that you're well prepared when someone requests a tattoo on a more curvaceous part of the body. Alternatively, draw your designs at an angle, so they're in a certain perspective. Though the experience of drawing on a person's body is markedly different from operating a tattoo machine and depositing ink into the skin, this practice will get you accustomed to drawing on a living canvas and various body parts. You might even seek out your more ticklish friends so that you have experience with a squirming client. Henna is a kind of traditional dye that has been used since ancient times. It is relatively inexpensive, can be bought online or at many general retailers and pharmacies. Due to the fact that henna remains on the skin for several days, you might want to hold off trying this until you're somewhat practiced on inanimate objects. Then, following the directions on the package: Mix your henna dye and collect the applicator for your henna. Apply it to the skin of your practice subject in the design desired. Note any improvements that could be made and ask for feedback. Many professional tattooists first began learning the art by tracing sample tattoos and simplifying designs to be more translatable to the skin. This skill can be imitated and studied academically by enrolling in a class in Inking, which is the practice of outlining and interpreting an original pencil drawing.
Summary: Draw constantly. Draw on contoured objects. Test your tattooist skills with a non-toxic marker and a friend. Use henna to learn how to apply designs to the contours of the body. Train yourself in inking lines and tracing.