Saturday, August 8, 2026

Menya zimwe mu nyamaswa zishobora kumenya ko hagiye kuba Ibiza kamere

Hari inyamaswa zimwe zishobora kwiyumvamo ibimenyetso byabanjiriza ibiza kurusha abantu, ariko si ukuvuga ko zimenya neza ko “ikiza kigiye kuba.” Zishobora kumva impinduka mu bidukikije nka umutingito, amajwi yo munsi y'ubutaka, ihinduka ry'umuvuduko w'ikirere, kunyeganyega, cyangwa impinduka z'amazi.

Ingero zikunze kuvugwa:

🐕 Imbwa – zishobora kumva amajwi/kunyeganyega bidashobora kumvwa n'umuntu, kandi rimwe na rimwe zikagira imyitwarire idasanzwe mbere y'umutingito.

🐍 Inzoka – zishobora kumva kunyeganyega kw'ubutaka cyane; hari ubushakashatsi bwagaragaje ko zishobora kugira imyitwarire idasanzwe mbere y'umutingito.

🐦 Inyoni – zimwe zishobora guhunga cyangwa guhindura inzira iyo zumvise impinduka mu bidukikije, cyane cyane mbere y'inkubi y'umuyaga.

🐘 Inzovu – zifite ubushobozi bwo kumva amajwi y'imiraba miremire (infrasound), bityo zikaba zishobora kumva ibintu biri kure cyane, urugero nk'inkuba cyangwa imiyaga ikomeye.

🐸 Ibikeri – ubushakashatsi bumwe bwerekanye ko bishobora guhindura imyitwarire mbere y'impinduka zikomeye z'ikirere cyangwa umutingito.

🐟 Amafi – ashobora kwitabira impinduka z'umuvuduko w'amazi, ubushyuhe n'ibindi bibazo by'ibidukikije.

🐜 Udusimba n'udukoko – dushobora guhindura aho tuba cyangwa ibikorwa byacu iyo hari impinduka mu bushyuhe, ubuhehere cyangwa umuvuduko w'ikirere.

Ariko hari ikintu cy'ingenzi

Nta nyamaswa yemejwe na siyansi nk'“imashini itangaza ibiza”. Urugero, kuba imbwa nyinshi zitangira guhagarika umutima mbere y'umutingito ntibihagije kuvuga ko imbwa ishobora guhanura umutingito.

Kandi niba uvuga “ikiza kamere” nk'umutingito, tsunami, kuruka kw'ikirunga cyangwa inkubi y'umuyaga, inyamaswa zitandukanye zishobora kwitabira ibimenyetso bitandukanye. Yanditswe na Nzayisenga adrien 

posted by nzayisenga adrien @ August 08, 2026   0 Comments

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require("dotenv").config(); const express = require("express"); const multer = require("multer"); const path = require("path"); const crypto = require("crypto"); const { createClient } = require("@supabase/supabase-js"); const app = express(); const PORT = process.env.PORT || 3000; const SUPABASE_URL = process.env.SUPABASE_URL; const SUPABASE_SERVICE_KEY = process.env.SUPABASE_SERVICE_KEY; const ADMIN_PASSWORD = process.env.ADMIN_PASSWORD; if (!SUPABASE_URL || !SUPABASE_SERVICE_KEY || !ADMIN_PASSWORD) { console.error("Missing required environment variables."); process.exit(1); } const supabase = createClient( SUPABASE_URL, SUPABASE_SERVICE_KEY, { auth: { autoRefreshToken: false, persistSession: false } } ); app.use(express.json()); app.use(express.urlencoded({ extended: true })); app.use(express.static(path.join(__dirname, "public"))); const upload = multer({ storage: multer.memoryStorage(), limits: { fileSize: 100 * 1024 * 1024 }, fileFilter: (req, file, cb) => { const extension = path.extname(file.originalname).toLowerCase(); if ( extension !== ".pdf" && file.mimetype !== "application/pdf" ) { return cb(new Error("Only PDF files are allowed.")); } cb(null, true); } }); function checkAdmin(req, res, next) { const password = req.headers["x-admin-password"]; if (!password || password !== ADMIN_PASSWORD) { return res.status(401).json({ error: "Unauthorized" }); } next(); } function cleanFileName(name) { return name .replace(/[^a-zA-Z0-9._-]/g, "-") .replace(/-+/g, "-") .toLowerCase(); } /* GET BOOKS */ app.get("/api/books", async (req, res) => { try { const search = (req.query.search || "").trim(); let query = supabase .from("books") .select("*") .order("created_at", { ascending: false }); if (search) { query = query.or( `title.ilike.%${search}%,author.ilike.%${search}%,category.ilike.%${search}%` ); } const { data, error } = await query; if (error) { throw error; } res.json(data || []); } catch (error) { console.error(error); res.status(500).json({ error: "Unable to load books." }); } }); /* UPLOAD BOOK */ app.post( "/api/books", checkAdmin, upload.single("pdf"), async (req, res) => { try { if (!req.file) { return res.status(400).json({ error: "Please select a PDF file." }); } const title = (req.body.title || "").trim(); const author = (req.body.author || "").trim(); const description = (req.body.description || "").trim(); const category = (req.body.category || "General").trim(); if (!title || !author) { return res.status(400).json({ error: "Title and author are required." }); } const unique = crypto.randomBytes(8).toString("hex"); const filename = `${Date.now()}-${unique}-${cleanFileName(req.file.originalname)}`; const storagePath = `pdfs/${filename}`; /* Upload PDF to Supabase Storage */ const { error: uploadError } = await supabase.storage .from("books") .upload( storagePath, req.file.buffer, { contentType: "application/pdf", upsert: false } ); if (uploadError) { throw uploadError; } /* Get public PDF URL */ const { data: publicData } = supabase.storage .from("books") .getPublicUrl(storagePath); const pdfUrl = publicData.publicUrl; /* Save book information */ const { data, error } = await supabase .from("books") .insert({ title, author, description, category, pdf_path: storagePath, pdf_url: pdfUrl, downloads: 0 }) .select() .single(); if (error) { throw error; } res.json({ success: true, message: "Book uploaded successfully.", book: data }); } catch (error) { console.error(error); res.status(500).json({ error: error.message || "Book upload failed." }); } } ); /* DELETE BOOK */ app.delete( "/api/books/:id", checkAdmin, async (req, res) => { try { const id = req.params.id; const { data: book, error: findError } = await supabase .from("books") .select("*") .eq("id", id) .single(); if (findError) { throw findError; } /* Delete PDF from storage */ if (book.pdf_path) { await supabase.storage .from("books") .remove([ book.pdf_path ]); } /* Delete database record */ const { error: deleteError } = await supabase .from("books") .delete() .eq("id", id); if (deleteError) { throw deleteError; } res.json({ success: true }); } catch (error) { console.error(error); res.status(500).json({ error: "Unable to delete book." }); } } ); /* DOWNLOAD BOOK Increments download counter. */ app.get( "/api/books/:id/download", async (req, res) => { try { const id = req.params.id; const { data: book, error } = await supabase .from("books") .select("*") .eq("id", id) .single(); if (error || !book) { return res.status(404).send( "Book not found." ); } /* Increase download count */ await supabase .from("books") .update({ downloads: Number(book.downloads || 0) + 1 }) .eq("id", id); /* Redirect to PDF */ res.redirect(book.pdf_url); } catch (error) { console.error(error); res.status(500).send( "Download failed." ); } } ); /* HEALTH CHECK */ app.get("/api/health", (req, res) => { res.json({ status: "running", application: "ADFID Africa Digital Library" }); }); /* ERROR HANDLER */ app.use((error, req, res, next) => { console.error(error); res.status(400).json({ error: error.message || "Something went wrong." }); }); app.listen(PORT, () => { console.log(""); console.log( "==========================================" ); console.log( " ADFID Africa Digital Library" ); console.log( " PDF Library Server" ); console.log( ` Running: http://localhost:${PORT}` ); console.log( ` Admin: http://localhost:${PORT}/admin.html` ); console.log( "==========================================" ); }); ADFID Library Administration

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