The Technical Gyan

Cosmos, yaani universe, mein woh sab kuch hai jo exist karta hai—matter, energy, space, aur time. Yeh ek bahut bada aur gehra sawal hai, toh chaliye ise thoda detail mein samjhte hain. ### Cosmos Mein Kya Hai? Cosmos mein chaar main cheezein shaamil hain: 1. **Matter**: Yeh woh sab physical cheezein hain jo hum dekh aur chhoo sakte hain. Ismein subatomic particles se lekar bade galaxies tak sab aata hai.     - Stars (tare)    - Planets (graha)    - Asteroids (ulukapind)    - Comets (dhoomketu)    - Interstellar gas aur dust (antarikshiya gas aur dhool) 2. **Energy**: Yeh har tarah ki urja hai jo cosmos mein maujood hai, jaise:    - Prakash (light)    - Garmi (heat)    - Kinetic energy (gati urja) 3. **Space**: Yeh woh vistrit, teesri aayam wala area hai jismein sab matter aur energy rehte hain. Space khali nahi hota; ismein fields aur chhote particles bhi hote hain. 4. **Time**: Yeh woh aayam hai jo waq...