Project Gutenberg on Nostr: "Ce n'est point l'observation mais la théorie qui m'a conduit à ce résultat que ...
"Ce n'est point l'observation mais la théorie qui m'a conduit à ce résultat que l'expérience a ensuite confirmé."
Augustin-Jean Fresnel died #OTD in 1827.
He is better known for inventing the catadioptric Fresnel lens and for pioneering the use of "stepped" lenses to extend the visibility of lighthouses, saving countless lives at sea. The simpler dioptric stepped lens is used in screen magnifiers and in condenser lenses for overhead projectors. via
npub1kvnpp3m60derhwpqwc09zhk3ehk48tr6agc6dk9z2vggu9sga28qpxhm73 (npub1kvn…hm73) #books #science
Published at
2023-07-14 10:19:37Event JSON
{
"id": "4f698baa093568ce8ea64cc0cc73e0a4ddeafde7689d94f9fc41ab05e9c9362c",
"pubkey": "675830674868b40aa5a0704f2d150b4c07658775c20aa65b1e38b13a91469c4b",
"created_at": 1689329977,
"kind": 1,
"tags": [
[
"p",
"b32610c77a7b723bb820761e515ed1cded53ac7aea31a6d8a253108e1608ea8e",
"wss://relay.mostr.pub"
],
[
"p",
"73f6d4710f85e90c62e6171da8fef0b3f74671f7e3e7d83e87af1c8eb7a12569",
"wss://relay.mostr.pub"
],
[
"t",
"otd"
],
[
"t",
"books"
],
[
"t",
"science"
],
[
"mostr",
"https://mastodon.social/users/gutenberg_org/statuses/110711929383332104"
]
],
"content": "\"Ce n'est point l'observation mais la théorie qui m'a conduit à ce résultat que l'expérience a ensuite confirmé.\"\n\nAugustin-Jean Fresnel died #OTD in 1827.\n\nHe is better known for inventing the catadioptric Fresnel lens and for pioneering the use of \"stepped\" lenses to extend the visibility of lighthouses, saving countless lives at sea. The simpler dioptric stepped lens is used in screen magnifiers and in condenser lenses for overhead projectors. via nostr:npub1kvnpp3m60derhwpqwc09zhk3ehk48tr6agc6dk9z2vggu9sga28qpxhm73 \n\n#books #science\n\nhttps://files.mastodon.social/media_attachments/files/110/711/883/922/942/343/original/a625e3f794ba6bba.jpg\n\nhttps://files.mastodon.social/media_attachments/files/110/711/926/120/518/131/original/f796104aae4790d1.png",
"sig": "00998bcd3462a5165c306a216dee508efe750bbfb3f9aea7487175c0dae655c7c2a9d95e36a4fe09fbe82eb563a1f3c52109a57f95f9ef123c0bb19614bb1abd"
}
