To remove minor bumps from cured epoxy resin, start by cleaning the surface with isopropylene alcohol to ensure it's free from dust or oils. For small bumps, gently sand the area with fine-grit sandpaper (e.g., 600-800 grit) in a circular motion; this should level the bumps with the rest of the surface. Always wear protective equipment to avoid inhaling dust. Wipe away the dust, then apply a thin coat of fresh epoxy resin over the sanded area using a foam brush for a smooth finish. If needed, use a heat gun to remove any air bubbles by lightly hovering over the surface. This process not only eliminates bumps but also restores the glossy finish of the epoxy. Remember, patience during sanding and applying a smooth coat will yield the best results.

Memorizing the letters associated with amino acids can be challenging but can be made easier with mnemonic techniques and practice. There are 20 standard amino acids, each with a unique single-letter code. One approach is to create a sentence where words start with the letter corresponding to an amino acid, ensuring the order matches their full names lexicographically (e.g., "Any Guy In LA Likes To Zap Red Monsters" for A, G, I, L, L, T, Z, R, M). Another method is using flashcards, with one side showing the amino acid name and the other its letter code. Regularly testing yourself with these flashcards can improve recall. Additionally, grouping amino acids by their properties (e.g., polar, nonpolar) and learning the groups can also help as it connects the letter to a characteristic of the amino acid. Persistence and regular revision are key, as frequent exposure solidifies memory.

Fixing epoxy edges requires attention to detail and the right tools. First, ensure the surface is clean and free of dust and debris. If the epoxy has a minor imperfection, such as a small bubble or unevenness, use fine-grit sandpaper (around 400 grit) to smooth the area gently. For more significant issues like chipping or peeling, you may need to remove the damaged section completely. Carefully cut away the flawed part using a sharp utility knife or a Dremel tool with a cutting attachment. Once removed, prepare the area by roughening the existing epoxy's surface to improve adhesion. Then mix a new batch of epoxy according to the manufacturer's instructions. Apply it evenly over the prepared surface, taking care to fill any gaps or depressions. Use a torch or heat gun to eliminate bubbles. Allow the epoxy to cure fully before lightly sanding it down for a seamless finish. Applying a topcoat can further enhance durability.