https://drray.org/gc-pilot-k7q4/ 2026-10-26T14:05:40Z Dr. Ray's Learning Center en General Chemistry Quiz Pilot 2026-10-26T14:05:37Z Blog https://drray.org/courses/transport-phenomena/steady-diffusion-liquids-solids-shells/ 2026-10-26T13:29:59Z Dr. Ray's Learning Center en Steady Diffusion in Liquids, Solids and Curved Shells 2026-10-26T13:29:55Z Blog https://drray.org/sim-unsteady-diffusion-b-embed/ 2026-10-26T13:27:37Z Dr. Ray's Learning Center en Unsteady Diffusion Explorer B (embed) 2026-10-26T13:27:34Z Blog https://drray.org/sim-unsteady-diffusion-a-3tab-embed/ 2026-10-26T10:34:54Z Dr. Ray's Learning Center en Unsteady Diffusion Explorer A, 3 Tabs (embed) 2026-10-26T10:34:51Z Blog https://drray.org/sim-porous-solids-embed/ 2026-10-26T10:32:24Z Dr. Ray's Learning Center en Diffusion in Porous Solids Explorer (embed) 2026-10-26T10:32:20Z Blog https://drray.org/sim-pseudo-steady-embed/ 2026-10-26T08:34:49Z Dr. Ray's Learning Center en Pseudo-Steady Evaporation Explorer (embed) 2026-10-26T08:34:46Z Blog https://drray.org/sim-bulk-flow-embed/ 2026-10-26T08:32:08Z Dr. Ray's Learning Center en Diffusion with Bulk Flow Explorer (embed) 2026-10-26T08:32:05Z Blog https://drray.org/sim-unsteady-diffusion-a-embed/ 2026-10-26T08:28:13Z Dr. Ray's Learning Center en Unsteady Diffusion Explorer A (embed) 2026-10-26T08:28:09Z Blog https://drray.org/sim-gas-diffusivity-embed/ 2026-10-26T05:14:49Z Dr. Ray's Learning Center en Gas Diffusivity Explorer (embed) 2026-10-26T05:14:47Z Blog