Because dry ice (solid carbon dioxide) undergoes sublimation as it warms, the solid becomes surrounded by a layer of its own gas. This cushion of carbon dioxide allows dry ice to glide smoothly across a table, much like a puck on an air hockey surface. Just be sure to keep a barrier between your skin and the dry ice because at about –109.3 °F (–78.5 °C), it’s cold enough to cause serious skin damage. #chemistry #halloweenscience #chemistryclass | Chemical Kim

⚠️ UK Bank can now track your carbon footprint based on what you buy. It starts as a “fun eco feature.” Then it becomes a framework for control. Once your carbon score is linked to your digital ID, CBDC, and social credit score, your freedom to buy, travel, and even eat can be restricted in the name of “saving the planet.” 🍳 Want to eat steak and eggs for breakfast every day? “Sorry, you’ve reached your carbon limit.” This is live inside the NatWest banking app right now. We checked it this mor