{"id":18752770,"url":"https://github.com/tlkh/pen-spring-diffraction","last_synced_at":"2026-05-07T07:41:01.430Z","repository":{"id":87652747,"uuid":"112023649","full_name":"tlkh/pen-spring-diffraction","owner":"tlkh","description":"Jupyter Notebook breaking down the Physics of Diffraction","archived":false,"fork":false,"pushed_at":"2019-01-23T14:49:28.000Z","size":1725,"stargazers_count":0,"open_issues_count":0,"forks_count":0,"subscribers_count":3,"default_branch":"master","last_synced_at":"2024-12-29T00:12:21.960Z","etag":null,"topics":["jupyter-notebook","physics","python"],"latest_commit_sha":null,"homepage":"","language":"Jupyter Notebook","has_issues":true,"has_wiki":null,"has_pages":null,"mirror_url":null,"source_name":null,"license":"mit","status":null,"scm":"git","pull_requests_enabled":true,"icon_url":"https://github.com/tlkh.png","metadata":{"files":{"readme":"README.md","changelog":null,"contributing":null,"funding":null,"license":"LICENSE","code_of_conduct":null,"threat_model":null,"audit":null,"citation":null,"codeowners":null,"security":null,"support":null,"governance":null,"roadmap":null,"authors":null,"dei":null,"publiccode":null,"codemeta":null}},"created_at":"2017-11-25T17:55:04.000Z","updated_at":"2019-01-23T14:49:29.000Z","dependencies_parsed_at":null,"dependency_job_id":"24985769-8499-4fb7-b5c1-5950a284cf8a","html_url":"https://github.com/tlkh/pen-spring-diffraction","commit_stats":null,"previous_names":[],"tags_count":0,"template":false,"template_full_name":null,"repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/tlkh%2Fpen-spring-diffraction","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/tlkh%2Fpen-spring-diffraction/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/tlkh%2Fpen-spring-diffraction/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/tlkh%2Fpen-spring-diffraction/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/tlkh","download_url":"https://codeload.github.com/tlkh/pen-spring-diffraction/tar.gz/refs/heads/master","host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":239644061,"owners_count":19673575,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2022-07-04T15:15:14.044Z","host_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub","repositories_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories","repository_names_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repository_names","owners_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners"}},"keywords":["jupyter-notebook","physics","python"],"created_at":"2024-11-07T17:22:32.668Z","updated_at":"2025-11-28T01:30:14.708Z","avatar_url":"https://github.com/tlkh.png","language":"Jupyter Notebook","funding_links":[],"categories":[],"sub_categories":[],"readme":"# Pen Spring Diffraction\nThis is a Jupyter Notebook that illustrates the following concepts based on an experiment:\n\n1. Single slit diffraction\n2. Diffraction by a pen spring (or any regular helix)\n\nTo view the demo notebook with the values filled in:\nhttps://github.com/tlkh/pen-spring-diffraction/blob/master/diffraction-answer.ipynb\n\nIf you would like to use this notebook interactively, clone this repository and run: https://github.com/tlkh/pen-spring-diffraction/blob/master/diffraction-answer.ipynb\n\nIf you have no idea how to go about doing the above, try https://notebooks.azure.com/\n\n1. Go to: https://notebooks.azure.com/tlkh-sutd/libraries/pen-spring-diffraction\n2. Log in using your Microsoft account (Office 365 enterprise login also works)\n3. Click `Clone` to duplicate the note into your own library\n4. Click on `diffraction.ipynb` and press `Run`\n\nThe apparatus for the experiment is extremely simple:\n\n* 3D-printed holder for a generic Chinese laser pointer\n* typical pen spring\n* a surface to shine your pattern on!\n\nThis experiment is significant because it is through studying the diffraction pattern of DNA (which heavily resembles what we see from the pen spring) that we conclude DNA has the shape of a regular helix.\n\nSUTD Physics II 1D Project - Teaching Resource for EM","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Ftlkh%2Fpen-spring-diffraction","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Ftlkh%2Fpen-spring-diffraction","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Ftlkh%2Fpen-spring-diffraction/lists"}