Contact angle a contact angle of 0°. This is often the case for water on bare metallic or ceramic surfaces, although the presence of an oxide layer or contaminants on the solid surface can significantly increase the contact angle. Generally, if the water contact angle is smaller than 90°, the solid surface is considered hydrophilic and if the water contact angle is larger than 90°, the solid surface is considered hydrophobic. Many polymers exhibit hydrophobic surfaces. Highly hydrophobic surfaces made of low surface energy (e.g. fluorinated) materials may have water contact angles as high as ~120°. Some materials with highly rough surfaces
Less Than Hero episode received a Nielsen rating of 5.0/9. Zack Handlen of "The A.V. Club" gave the episode an A, saying: "Seeing Leela, Fry, and Bender work together as a team nearly always makes for something grand, and on the whole, “Less Than Hero” doesn’t disappoint. Its ambitions are modest, and it makes the most of them. Plus, it offers the rare chance to see super-heroes being ridiculous for no other reason than they want to. We could use more of that, really." Less Than Hero "Less Than Hero" is the fourth episode in the fourth season of the American animated television