To clean polyester in the dryer by hand, start by removing any excess debris or stains with a damp cloth and a mild detergent. Then, place the polyester item in the dryer on a low heat setting with a few dryer balls or clean tennis balls to help fluff and redistribute the fibers. As for cleaning a mattress without a cover by hand, start by vacuuming the mattress to remove any dust and debris. Then, mix a solution of mild detergent and water and gently spot clean any stains with a soft cloth. Allow the mattress to air dry completely before making the bed again. **

It is difficult to determine if the goods security system is faulty without more information. Factors such as the frequency of false alarms, incidents of theft, and overall effectiveness of the system would need to be evaluated. Conducting a thorough assessment and possibly seeking input from security professionals would be necessary to determine if the system is faulty. **

While it is possible to throw stolen goods over an electronic goods security system, it is not a foolproof method of avoiding detection. Many security systems are equipped with sensors that can detect when an item is thrown over or passed through the system without being properly scanned. Additionally, security personnel may be monitoring the area and can respond to any suspicious activity. Thieves may also risk damaging the stolen goods by throwing them over the security system. Therefore, while it may be attempted, it is not a reliable method for avoiding detection. **

Polyester is a synthetic fabric that is known for its resistance to shrinking. Unlike natural fibers such as cotton or wool, polyester is less likely to shrink when exposed to heat or moisture. However, it is still possible for polyester to shrink under extreme conditions, such as high heat in the dryer or hot water in the washing machine. To prevent shrinking, it is recommended to follow the care instructions on the garment's label and avoid exposing polyester to high temperatures. **

Polyester has both advantages and disadvantages. It is durable, wrinkle-resistant, and retains its shape well, making it a popular choice for clothing and home textiles. However, it is not as breathable as natural fibers and can be less comfortable to wear in hot weather. Additionally, polyester is a synthetic material made from petrochemicals, which can have negative environmental impacts. Overall, whether polyester is "good" depends on the specific use and individual preferences. **

Polyester itself is not inherently waterproof, but it can be treated with a waterproof coating or laminate to make it water-resistant or waterproof. This treatment creates a barrier that prevents water from penetrating the fabric. However, it's important to note that the level of waterproofing can vary depending on the specific treatment and construction of the polyester fabric. **

Polyester itself is not inherently stretchy, as it is a synthetic fiber known for its durability and wrinkle resistance. However, when blended with other fibers such as spandex or elastane, polyester can become stretchy. This blend is commonly used in activewear, swimwear, and other clothing items that require stretch and flexibility. So, while pure polyester is not stretchy, it can be made stretchy when combined with other materials. **

Fur is typically made of polyester acrylic, which is a synthetic material designed to mimic the look and feel of real fur. This material is often used in the production of faux fur products as a more ethical and sustainable alternative to real animal fur. Polyester, on the other hand, is a synthetic fabric commonly used in a wide range of clothing and household items, but it is not typically used to create fur-like textures. **