{"id":43545296,"url":"https://github.com/pointlander/graphene","last_synced_at":"2026-02-03T18:43:01.141Z","repository":{"id":137390385,"uuid":"331838805","full_name":"pointlander/graphene","owner":"pointlander","description":"Graphene experiments","archived":false,"fork":false,"pushed_at":"2021-02-12T00:45:30.000Z","size":3342,"stargazers_count":0,"open_issues_count":0,"forks_count":0,"subscribers_count":3,"default_branch":"main","last_synced_at":"2024-04-17T15:32:53.039Z","etag":null,"topics":["energy","science-research"],"latest_commit_sha":null,"homepage":"","language":"Go","has_issues":true,"has_wiki":null,"has_pages":null,"mirror_url":null,"source_name":null,"license":"bsd-3-clause","status":null,"scm":"git","pull_requests_enabled":true,"icon_url":"https://github.com/pointlander.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}},"created_at":"2021-01-22T04:44:45.000Z","updated_at":"2021-02-12T00:45:33.000Z","dependencies_parsed_at":null,"dependency_job_id":"296be785-ae79-42f8-809e-d7ce3dfced74","html_url":"https://github.com/pointlander/graphene","commit_stats":{"total_commits":13,"total_committers":1,"mean_commits":13.0,"dds":0.0,"last_synced_commit":"fff1ea1a896fcaca8f561b4538c4a59a177b1973"},"previous_names":[],"tags_count":0,"template":false,"template_full_name":null,"purl":"pkg:github/pointlander/graphene","repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/pointlander%2Fgraphene","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/pointlander%2Fgraphene/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/pointlander%2Fgraphene/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/pointlander%2Fgraphene/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/pointlander","download_url":"https://codeload.github.com/pointlander/graphene/tar.gz/refs/heads/main","sbom_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/pointlander%2Fgraphene/sbom","scorecard":null,"host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":286080680,"owners_count":29053129,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2026-02-03T15:43:47.601Z","status":"ssl_error","status_checked_at":"2026-02-03T15:43:46.709Z","response_time":96,"last_error":"SSL_read: unexpected eof while reading","robots_txt_status":"success","robots_txt_updated_at":"2025-07-24T06:49:26.215Z","robots_txt_url":"https://github.com/robots.txt","online":false,"can_crawl_api":true,"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":["energy","science-research"],"created_at":"2026-02-03T18:43:00.545Z","updated_at":"2026-02-03T18:43:01.129Z","avatar_url":"https://github.com/pointlander.png","language":"Go","funding_links":[],"categories":[],"sub_categories":[],"readme":"# Pyrolytic graphite temperature experiment\n\n## Rational\nIt has been found in an\n[experiment](https://www.nextbigfuture.com/2020/10/tiny-energy-harvested-from-brownian-motion-could-replace-low-power-batteries.html)\nthat graphene vibrates thus producing usable energy.\nPyrolytic graphite is composed of many layers of graphene, so it should be warmer than the\nsurrounding environment.\n\n## Experiment Setup\nThe experiment consists of one [k type thermocouple](https://en.wikipedia.org/wiki/Thermocouple#Type_K) attached to\n[pyrolytic graphite](https://en.wikipedia.org/wiki/Pyrolytic_carbon) in a thermally\ninsulating container. Another thermocouple is outside of the container. Both thermocouples are\nattached to a thermometer.\n\n![setup](setup.png?raw=true)\n\n## Experimental Results\nThe experiment measured the temperature difference between the two thermocouples averaged over a period\nof about 80 minutes. On average the difference was found to be ~0.8F. The error in the measurement was\nfound to be less than 0.1F. The control experiment found the difference to be ~0.5F. This indicates that\nthe pyrolytic graphite is producing heat. The experiment was conducted at a room temperature of ~70F.\n\n## Materials\n* [pyrolytic graphite](https://unitednuclear.com/index.php?main_page=product_info\u0026cPath=16_17_69\u0026products_id=527)\n* [meter](https://www.fluke.com/en-us/product/temperature-measurement/ir-thermometers/fluke-54-ii)\n* [thermocouple](https://www.fluke.com/en-us/product/accessories/probes/fluke-80pk-1)\n\n## Potential error\nPyrolytic graphite is conductive, so this could impact the thermocouple, but this would probably be noticable\nin the meter readings.\n\n## Data\n\n### Pyrolytic graphite experiment - log1.csv\n* average=0.764198\n* corr=0.334671\n\n![log1.csv](log1.png?raw=true)\n\n### Pyrolytic graphite experiment with heat shrink tubing - log4.csv\n* average=0.575000\n* corr=-0.064983\n\n![log4.csv](log4.png?raw=true)\n\n### Pyrolytic graphite experiment with heat shrink tubing - 8 hours - night - log5.csv\n* average=0.423647\n* corr=0.825082\n\n![log5.csv](log5.png?raw=true)\n\n### Pyrolytic graphite experiment with heat shrink tubing - 8 hours - day - log6.csv\n* average=0.437475\n* corr=0.885628\n\n![log6.csv](log6.png?raw=true)\n\n### Thermos Pyrolytic graphite experiment with heat shrink tubing - 8 hours - night - log9.csv\n* average=0.196794\n* corr=0.936163\n\n![log9.csv](log9.png?raw=true)\n\n### Thermos graphene in water experiment with liquid probe - 8 hours - night - log10.csv\n* average=0.585571\n* corr=0.076168\n\n![log10.csv](log10.png?raw=true)\n\n### Calibration - log2.csv\n* average=0.007059\n* corr=0.993329\n\n![log2.csv](log2.png?raw=true)\n\n### Control - log3.csv\n* average=0.460714\n* corr=0.863758\n\n![log3.csv](log3.png?raw=true)\n\n### Control - 8 hours - night - log7.csv\n* average=0.438677\n* corr=0.574128\n\n![log7.csv](log7.png?raw=true)\n\n### Thermos Control - 8 hours - day  - log8.csv\n* average=0.047695\n* corr=0.971811\n\n![log8.csv](log8.png?raw=true)\n\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fpointlander%2Fgraphene","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fpointlander%2Fgraphene","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fpointlander%2Fgraphene/lists"}