you cant
bedrock in minecraft and you cant even mine it with a diamond pickaxe
You can. Your computer is wrong.
MINECRAFT: in which way, destroying the blocks that you put the pearls in, you cant destroy the blocks.
Bedrock is the hardest stone, and cannot be broken in any way in pure unmodded survival. End portal frame blocks are also indistructible and cannot be destroyed in any way. The third hardest material is obsidian, as the only means of destroying it is mining it with a diamond pick for 130 ingame ticks (45 seconds).
there are 153 blocks and the piston cant pull Obsidian, Bedrock, Note Block, Chest, Furnace, Dispenser, Monster Spawner, and an already extended Piston. (However, when Pumpkins, Jack'o'lanterns, Torches, Cacti, Cobwebs or Melons are pulled, they break.) 145 blocks (or 139).
you can make it by placing a water source in a snow biome. But there can not be a block above it. Just to let you know you cant collect it while in survival.
You simply join a multiplayer creative server and hit Ior E. Or go into a single player world with cheat commands enabled and type /gamemode 1 to spawn in items and blocks.
You cant
you cant
you cant
you cant