Generate a Custom Markdown Parser in Python
Write a Python script that parses simplified markdown text and converts it into HTML. Include support for headers, bold, italic, and links.
JavaScript Animation: Bouncing Ball on Canvas
Create a JavaScript function that animates a ball bouncing inside a <canvas> element, with adjustable speed and gravity.
General Guidelines for Seasonal Vaccinations
Describe key factors individuals should consider when deciding the optimal timing for receiving seasonal vaccines, such as flu shots.
How Vaccines Help Reduce Community Disease Spread
Explain the basic science of how vaccines contribute to public health by reducing the transmission and severity of infectious diseases.