The machinery of life operates at the nanometre scale — proteins fold, DNA replicates, cells signal each other. Explore the physics and chemistry of biology through molecular simulation.
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Explore the molecular machinery of life
DNA, proteins, cell division, and molecular machines — animated
Molecular biology simulations translate the microscopic world of the cell into interactive 3D visualisations. DNA replication animations show helicase unwinding the double helix as polymerase adds complementary bases at each fork. Protein folding models visualise secondary structure formation driven by hydrophobic collapse and hydrogen bonding. Diffusion simulations show how molecules traverse the cytoplasm via random Brownian motion.
These models bridge biochemistry and physics, demonstrating why the cell is often called the most sophisticated nanomachine known. Adjusting temperature, concentration gradients, or ion channel permeability reveals how molecular biology depends on thermodynamic principles. The same coarse-grained molecular dynamics approach used here is employed in drug-discovery pipelines to screen candidate molecules against target proteins.
Each simulation in this category is built with accuracy and interactivity in mind. The underlying mathematical models are the same ones used in academic research and professional engineering — just made accessible through a web browser. Changing parameters in real time and observing the results is one of the most effective ways to build intuition for complex scientific and engineering concepts.
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