One modern poem that fits the criteria is "The Journey" by Mary Oliver. This poem is a reflective piece that explores the themes of self-discovery and personal growth. With 20 lines, it captures the essence of embarking on a journey of transformation and finding one's true path in life. The vivid imagery and introspective tone make it a compelling and thought-provoking piece of contemporary poetry. **

Equipotential lines are always perpendicular to field lines because the electric field is always perpendicular to the equipotential surface. This is because the electric field is the gradient of the electric potential, and the gradient is always perpendicular to the equipotential surface. Therefore, the equipotential lines, which represent points of equal electric potential, must be perpendicular to the electric field lines. This relationship ensures that work done in moving a charge along an equipotential line is zero, as the electric field does no work in a direction perpendicular to its field lines. **

One modern poem that fits the criteria is "Still I Rise" by Maya Angelou. This empowering poem is 23 lines long and celebrates resilience and strength in the face of adversity. It has a contemporary feel and resonates with readers of all ages. The poem's message of overcoming challenges and standing tall in the face of oppression is both timeless and relevant in today's world. **

The number of lines of source code in a modern video game can vary widely depending on the complexity of the game, the size of the development team, and the technologies used. However, it's not uncommon for a modern video game to contain hundreds of thousands or even millions of lines of source code. Games with advanced graphics, complex gameplay mechanics, and extensive content can require a significant amount of code to bring them to life. Additionally, the use of game engines and third-party libraries can also contribute to the overall size of the codebase. **

Show lines and working lines in dogs differ primarily in their breeding purpose and physical characteristics. Show lines are bred for conformation to breed standards and are often selected for their appearance in dog shows. Working lines, on the other hand, are bred for their ability to perform specific tasks such as herding, hunting, or protection work. Working lines tend to have a higher drive, energy level, and intelligence compared to show lines, as they are bred for their working abilities rather than their appearance. Additionally, working lines may have a more athletic build and higher stamina to excel in their designated tasks. **

Hydrogen lines refer to the spectral lines that are produced when the electrons in hydrogen atoms transition between different energy levels. These transitions emit light at specific wavelengths, resulting in distinct lines in the electromagnetic spectrum. The most prominent hydrogen lines are the Balmer series, which are visible in the visible part of the spectrum and are often used in astronomy to study the composition and temperature of stars. By analyzing the hydrogen lines in the spectrum of a star, astronomers can determine its chemical composition and other important properties. **

Scratched lines are marks or grooves that have been made by scraping or cutting a surface with a sharp object. These lines can be intentional, such as in the case of an artist using a sharp tool to create texture in a drawing, or they can be accidental, such as when a surface is scratched by a sharp object. Scratched lines can vary in depth and width, and they can be used for decorative, functional, or destructive purposes. **

Panty lines are not necessarily prohibited, but they are generally considered undesirable in certain situations, such as when wearing tight or form-fitting clothing. Many people prefer to avoid visible panty lines for a smoother and more polished look. There are various undergarment options, such as thongs or seamless panties, that can help prevent panty lines from showing. Ultimately, the decision to avoid panty lines is a personal preference and depends on the individual's comfort and style choices. **