Markonijev patent bi danas bio strogo zabranjen

 

Da, Marconi predajnik sa varničarom (spark gap transmitter) može da ometa FM radio prijemnik.

Iako su FM prijemnici po svojoj prirodi znatno otporniji na atmosferske i električne smetnje u odnosu na AM prijemnike, intenzivno elektromagnetno zračenje koje proizvodi varničar može izazvati probleme iz nekoliko ključnih razloga: [1]

Ekstremno širok spektar (bela buka): Električna varnica se ponaša kao minijaturna munja. Ona ne emituje čistu sinusoidu na jednoj frekvenciji, već stvara "prljav" i ekstremno širok frekventni spektar koji se preliva preko ogromnog dela radio-opsega. Čak i ako je predajnik podešen za rad na niskim frekvencijama, nusprodukti i harmonici varnice mogu dostići VHF opseg (87.5–108 MHz) u kojem radi FM radio. [1, 2, 3, 4]
Zagušenje prijemnika (Desensitization): Ako se predajnik sa varničarom nalazi blizu FM radija, jačina njegovog elektromagnetnog impulsa može doslovno da preplavi ulazne filtere i pojačavač (front-end) u FM prijemniku. Prijemnik biva "zaslepljen" količinom sirove energije, što dovodi do gubitka signala legitimne radio stanice.
Zvuk smetnje: Na slobodnim frekvencijama na skali (gde nema jakih stanica), u trenutku kada varničar radi, na FM radiju ćete najčešće čuti kratke prekide, pucketanje ili prepoznatljivo zujanje prateće frekvencije varničara. [1]

Zbog ove osobine da brutalno "prljaju" radio-frekvencijski spektar i ometaju sve vrste modernih komunikacija (uključujući avijaciju, GPS i hitne službe), predajnici sa varničarom su međunarodnim zakonima strogo zabranjeni za upotrebu još od tridesetih godina 20. veka.

Jednostavna shema:

Moderni demodulator sa LED:

Ozbiljnija primena:

Ozbiljna izvedba sa poluprovodnim elementom i trafom:

Staro električno zvonce samo po sebi već stvara varnicu čak i bez svih ostalih navedenih delova.

https://www.geojohn.org/Radios/MyRadios/Coherer/CohererMobile.html

MS PAINT on Linux

1

https://jspaint.app/

2

https://paint.js.org/

3

https://mspaint.humanhead.com/

4

https://paintz.app/

5

https://artofpencil.com/ms-paint-online/

6

https://www.mcpaint.app/

7

https://www.onemotion.com/sketch-paint/

black wallpaper

 

Kompjuter za kancelariju danas

https://www.freeoffice.com/en/

https://www.instructables.com/Build-an-Accessible-Book-Reader-a-Raspberry-Pi-Sca/?utm_source=newsletter&utm_medium=email

https://aidirectory.denfiselite.com/sr/ai-chatbotovi/

https://www.knock-ai.com/blog/best-ai-chatbots

Best AI Chatbots (Free and Premium): Quick Comparison (List Format)

‍

1. ChatGPT:  Best for general use and versatile reasoning tasks.
2. Claude: Excels at structured writing, analysis, and thoughtful answers.
3. Perplexity: Ideal for real time research with clean, cited answers.
4. Gemini: Seamless for Google Workspace users and productivity workflows.
5. Copilot: Deeply integrated into Microsoft 365 for team productivity.
6. DeepSeek: Strong open source option with low cost and solid reasoning.
7. LLaMA: Best for on premise or custom open deployments.
8. Tidio: Great for SMBs automating customer support across channels.
9. Intercom: Enterprise grade CX automation with strong integrations.
10. ProProfs: Focused on mobile and Android chatbot experiences.
11. Knock AI: Designed for real time B2B lead engagement through Slack and messaging.

Winamp in your terminal

 

A full music player that lives in your terminal. No browser tab required.

https://www.cliamp.stream/

https://github.com/bjarneo/cliamp

Golang crossplatform application.

Linux · macOS · Windows

MIT licensed

Go 1.26

more tips:

https://aerynos.com/blog/2026/08/31/a-community-that-works-together-builds-together/

https://www.kyoceradocumentsolutions.com/in/en/products/printer/ecosys-fs1060dn/

Alpine Linux manual install

https://gist.github.com/lidgnulinux/4b40d72d358528e76c6f9be4ad6cbaa5

windblows 99...

https://www.openshot.org/

https://kleki.com/#834

https://www.bcuninstaller.com/

https://tonybtw.com/

https://win99.dev/

SkorpionOS, local model AI OS:

https://skossyte.pages.dev/english

Skorpion OS was born from a simple but ambitious idea: artificial intelligence should not be a separate tool, but act as the user's butler, handling their every need.

Every application, every terminal, every search — once the project is complete, everything will communicate with a single local AI model based on Ollama, without sending data to external servers. Your privacy and your data remain untouched on your PC.

The project is developed by Enrico Miot (EndrX), with the vision of creating an OS that teaches beginners and empowers experts.

Windows Smart App Control

To run an application blocked by Windows Smart App Control, you must turn off the feature in your security settings or unblock the specific file properties. [1]

Fix the Blocked App

Open the Settings app on your Windows 11 PC.
Go to Privacy & security, then click Windows security.
Select App & browser control.
Click on Smart App Control settings.
Switch the setting to Off (you may need to confirm by clicking Yes, I'm sure).
Alternatively, right-click the installer file, select Properties, and check the Unblock box if available on the General tab.

WINDOWS 11 HEALTH CHECK

sfc /scannow

DISM /Online /Cleanup-Image /RestoreHealth

RESTORE POINT CREATION ENABLE

1. Проверите да ли је System Protection укључен

1. Притисните Win + R, укуцајте sysdm.cpl и притисните Enter.

2. Идите на картицу System Protection.

3. Изаберите системски диск (C:) и кликните на Configure.

4. Проверите да ли је означено Turn on system protection.

5. Подесите Max Usage клизач на бар 5–10% и кликните Apply > OK.

NETWORK UNCLOG

• netsh winsock reset

• netsh int ip reset

• ipconfig /release

• ipconfig /renew

• ipconfig /flushdns

Alpine Linux dwm with i3wm

 

Za odabir između i3wm i dwm prilikom prijave na Alpine Linuxu, najlakše je koristiti lagani Display Manager poput LightDM-a zajedno sa X11 okruženjem.

Pretpostavka je da je osnovni Alpine sistem već instaliran i da imate korisnika sa sudo ili doas privilegijama.

1. Omogućavanje skladišta (Repositories)

Uverite se da su community i testing skladišta omogućena u /etc/apk/repositories (potrebna su za i3, dwm i lightdm):

Bash

sudo setup-apkovl  # ili ručno uredite /etc/apk/repositories odkomentarisanjem linija sa community/testing
sudo apk update

2. Instalacija X11 servera i upravljača prozorima

Instalirajte Xorg, oba upravljača prozorima, terminal i LightDM:

Bash

sudo apk add xorg-server xf86-input-libinput lightdm lightdm-gtk-greeter i3wm i3status dwm xterm

3. Podešavanje Desktop Session fajlova

Da bi Display Manager (LightDM) prepoznao i3 i dwm, moraju postojati odgovarajući .desktop fajlovi u /usr/share/xsessions/.

i3wm: (Obično se kreira automatski, ali možete proveriti ili kreirati ručno):

Proverite da li postoji /usr/share/xsessions/i3.desktop. Ako ne postoji, kreirajte ga:

Ini, TOML

# /usr/share/xsessions/i3.desktop
[Desktop Entry]
Name=i3
Comment=improved dynamic tiling window manager
Exec=i3
Type=Application

dwm: (Obično nema ugrađen session fajl, pa ga morate kreirati):

Kreirajte fajl /usr/share/xsessions/dwm.desktop:

Bash

sudo mkdir -p /usr/share/xsessions
sudo nano /usr/share/xsessions/dwm.desktop

Dodajte sledeći sadržaj:

Ini, TOML

[Desktop Entry]
Name=dwm
Comment=dynamic window manager
Exec=dwm
Type=Application

4. Podešavanje udev-a i servisa

LightDM zahteva omogućen udev servis i pokretanje dbus-a (ako već nisu konfigurisani):

Bash

sudo apk add udev dbus
sudo rc-update add udev
sudo rc-update add dbus
sudo rc-update add lightdm

5. Pokretanje i testiranje

Pokrenite servise odmah ili ponovo pokrenite sistem:

Bash

sudo rc-service udev start
sudo rc-service dbus start
sudo rc-service lightdm start

Nakon ovoga, dočekaće vas LightDM grafički ekran za prijavu. U gornjem desnom (ili levom) uglu ekrana videćete padajući meni gde možete izabrati i3 ili dwm pre nego što unesete lozinku.

https://medo.dev/