Gustave Eiffel built the Eiffel Tower as a centerpiece for the 1889 Exposition Universelle (World's Fair) held in Paris to celebrate the 100th anniversary of the French Revolution. The tower was intended to showcase French engineering and architectural prowess to the world. Eiffel also saw the tower as a symbol of modernity and progress, representing the industrial age and the advancements in iron construction techniques. **

Polyester is generally considered better for sports due to its moisture-wicking properties, which help to keep the body dry and cool during physical activity. It is also more durable and resistant to shrinking and wrinkling compared to cotton. However, some people may prefer the natural feel of cotton against their skin during sports activities. Ultimately, the choice between polyester and cotton for sports depends on personal preference and the specific needs of the athlete. **

The Eiffel Tower was completed in 1889, which means it will celebrate its 200th birthday in 2089. Given its iconic status and historical significance, it is highly likely that the Eiffel Tower will still be standing and celebrated on its 200th birthday. The French government and authorities have taken measures to ensure the preservation and maintenance of the Eiffel Tower, making it a symbol of Paris and an enduring landmark for generations to come. **

Stray Kids is a South Korean boy band, and the members live together in a dorm provided by their management company, JYP Entertainment. The exact location of their dorm is not publicly disclosed to protect their privacy and security. Living together in a dorm allows the members to bond and work closely together, which is important for their group dynamics and teamwork as a K-pop group. **

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 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. **

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. **