• Why is there day and night phenomenon?

    Why is there day and night phenomenon?
    The Earth's sphere is always half bright by the Sun, so it was born day and night, because the Earth rotates around its axis, so every surface of the Earth is illuminated by the
  • Rings help sleep Good Night

    Rings help sleep Good Night
    Scientists say the ring designed specifically for the toddler can reduce snoring, thereby helping the owner sleep better.