INPUT ARTICLE: Article: Go online or check at an electronics store for sensor swabs and a specialized DSLR sensor cleaner. DSLR cleaners leave a coating on the sensor that can repel dust and minimize future build-up. Sensor swabs are soft and sterile, and won’t leave residual hair or dust on your sensor.  Do not use regular cotton swabs or general soaps or cleaners on your camera. Sensor cleaning solutions typically come in small, squeezable dropper bottles. Sensor swabs are small with soft, triangular heads. Look for one made for your camera’s sensor size, which you can find in your camera’s instruction and information manual. One minute is approximately enough time for the solution to soak into the cleaning tool. When a minute has passed, keep the cleaning tool lifted over the solution so it can catch any drips. Do not squeeze cleaner directly onto the DSLR. Apply it with a cleaning tool. To make sure your sensor is as clean as it can be, take an out of focus photo with the camera aperture set to f/22. Upload the photo to your computer and desaturate it with an editing program like Photoshop. Zoom in and closely examine the photo to find dust spots you may have missed. If you spot any other dust particles, you can clean the sensor again with a sensor swab and a few drops of sensor cleaning solution.

SUMMARY: Purchase sensor swabs and a sensor cleaning solution. Let the swab soak in the solution for about a minute. Take a photo after cleaning to check for any last dust particles.

In one sentence, describe what the following article is about: Recreational and medicinal marijuana use is legal in 4 states (Alaska, Colorado, Oregon, and Washington) and Washington D.C. whereas marijuana can only be possessed and used for medically prescribed purposes in 19 states. It is important you familiarize yourself with state laws and regulations before attempting home cultivation. In a search engine, type the "state name" plus "marijuana laws". Cannabis cannot be grown at home, and can only be obtained with a prescription from a licensed physician from licensed dispensaries in Connecticut, Delaware, Illinois, Maryland, Minnesota, New Hampshire, New York, New Jersey, and Washington D.C. In Nevada and Arizona, you can only cultivate at home if you live 25 miles or more from a dispensary or receive a hardship waiver.  Most states do not allow marijuana use for any reason by individuals under 21 years of age. How many plants you can grow (ranges from 0 to 24) or how much marijuana you can possess at a time (ranges from 1 oz to 24 oz; 10 to 60 day supply) varies by state. You can be fined or arrested if you do not comply. Most states require you to sign-up and pay a registration fee that can range from $15 to $200. Federal laws supersede state laws. The Department of Justice continues marijuana enforcement under the Controlled Substances Act. It is illegal to grow or possess marijuana on public or federal lands, or distribute it to a minor. Countries outside the U.S. have their own laws and regulations when it comes to growing and possessing cannabis. Research laws in your country to avoid fines or even imprisonment. Countries where it is legal to grow cannabis include: Colombia (20 plants), Czech Republic (5 plants), Spain, and Switzerland (4 plants). In all these countries, cannabis can only be grown for personal use (medical or recreational) and cannot be sold or transported out of the country. Cannabis contains over 70 cannabinoids that produce a psychoactive effect in humans, the strongest being delta-9-tetrahydrocannabinal (THC). THC is produced as a sticky resin on the surface of plants. Levels of THC vary based on: part of the plant (buds contain the most followed by the leaves, stems, and seeds), growing conditions, and subspecies. There are three subspecies of cannabis differentiated on the basis of cannabinoid content: sativa, indica, and ruderalis.  Untreated or organically grown seeds will produce 50% male (staminate) and 50% female (pistillate) plants. Sativa and indica are the most common types of cannabis grown for recreational or medicinal use. Most plants grown today are sativa-indica hybrids. Indica hybrids are known for their pain-relieving and calming properties, and are good for growing indoors as they only grow 2-3 feet tall and have a diameter of 12-18 inches. Growing cannabis indoors is notoriously energy inefficient and can increase you electricity bills more than 10%. Your seeds will have to be germinated indoors. However, if you plan on replanting outside, you should start your seeds by late-March to early-April at the latest.  The growing season for cannabis in the northern hemisphere runs from early May to October. You want to give plants a headstart and gradually acclimate them to outdoor climates by growing indoors under fluorescent grow lights for 2 to 3 weeks after germination. Expect germination to take from 2 days up to 2 weeks. The benefit of growing plants indoors is that you can control temperature, light, and humidity, and they can be grown year-round. Additionally, most states require cannabis to be grown inside in a secure location.
Summary: Know the law. Comply with state regulations and restrictions. Comply with federal laws. Comply with international laws. Select the seeds you want to germinate. Consider different growing methods.

INPUT ARTICLE: Article: Notice that the circle overlaps the edge lines a little.  What you're doing is chiseling from the outside in until you have only a sliver remaining in the center, as shown.    {"smallUrl":"https:\/\/www.wikihow.com\/images\/thumb\/5\/55\/Whittle-a-Ball-in-a-Cage-Step-4Bullet1.jpg\/v4-460px-Whittle-a-Ball-in-a-Cage-Step-4Bullet1.jpg","bigUrl":"\/images\/thumb\/5\/55\/Whittle-a-Ball-in-a-Cage-Step-4Bullet1.jpg\/aid42434-v4-728px-Whittle-a-Ball-in-a-Cage-Step-4Bullet1.jpg","smallWidth":460,"smallHeight":325,"bigWidth":"728","bigHeight":"514","licensing":"<div class=\"mw-parser-output\"><p>License: <a rel=\"nofollow\" class=\"external text\" href=\"https:\/\/creativecommons.org\/licenses\/by-nc-sa\/3.0\/\">Creative Commons<\/a><br>\n<\/p><p><br \/>\n<\/p><\/div>"}

SUMMARY:
Start with a small block of soft wood (pine, basswood or balsa) 1" wide by 1" tall, 4" long. Mark on the wood with a pencil the trace lines as shown in the image. Chisel cavities on both sides of the outlined ball. Turn the block over and repeat. Cut the slivers from the ends of the block. Carefully whittle the slivers from the ball until it can roll freely within the frame.