Minecraft: Why is this not working?

I want it to keep dispensing mobs but it drops one or two and does nothing else. I thought the repeater was supposed to repeat the trigger. Minecraft: Why is this not working

I can't play Minecraft, every time I try it crashes?

Here's the crash log

[12:23:08] [Client thread/INFO]: Reloading ResourceManager: Default

Starting up SoundSystem…
Initializing LWJGL OpenAL
(The LWJGL binding of OpenAL. For more information, see http://www.lwjgl.org)
OpenAL initialized.

[12:23:09] [Sound Library Loader/INFO]: Sound engine started
[12:23:13] [Client thread/INFO]: Created: 512x256 textures/blocks-atlas
[12:23:13] [Client thread/INFO]: Created: 256x256 textures/items-atlas
#
# A fatal error has been detected by the Java Runtime Environment:
#
# EXCEPTION_ACCESS_VIOLATION (0xc0000005) at pc=0x28183e88, pid=4772, tid=5988
#
# JRE version: Java(TM) SE Runtime Environment (8.0_66-b18) (build 1.8.0_66-b18)
# Java VM: Java HotSpot(TM) Client VM (25.66-b18 mixed mode windows-x86 )
# Problematic frame:
# C [ig4dev32.dll+0x3e88]
#
# Failed to write core dump. Minidumps are not enabled by default on client versions of Windows
#
# An error report file with more information is saved as:
# C:\Users\Serginho\AppData\Roaming\.minec…
#
# If you would like to submit a bug report, please visit:
# http://bugreport.java.com/bugreport/crash.jsp
# The crash happened outside the Java Virtual Machine in native code.
# See problematic frame for where to report the bug.
#
AL lib: (EE) alc_cleanup: 1 device not closed
Java HotSpot(TM) Client VM warning: Using incremental CMS is deprecated and will likely be removed in a future release

Can someone please help me?

My Minecraft starts freezing after playing for a while. Why is this so?

After playing for maybe an hour or so, my Minecraft starts freezing very frequently and I have to restart my game. But every time I restart the game, the amount of time that it remains smooth becomes shorter. Can anybody explain this? Could it be my battery, or maybe RAM, or something else? Anyone experienced this before?

Minecraft Youtuber Feature?

I want to publish a Minecraft map but I Really Really Really want it to get featured by a popular Minecraft youtuber like Logdotzip (that would be cool). It's an adventure map where the player parkours, solves puzzles, and fights off mobs to slay the evil Herobrine and save Notch. There's an epic story too, as well as a lot of command blocks and stuff like that. Any tips for how this could be better?

I'm looking for 4 - 5 Youtube Minecraft partners?

I just started a new Youtube gaming channel, and would want a partner! I have 0 subs so we could start fresh. I'm fun, silly and active! Iwill be playing Minecraft, Online games, and more! I will be doing lets plays, map reviews, custom maps, playing online games, and more!

Requirements:
Have Minecraft PC
Are ages 10 - 14
Have a good schedule
Have a good recording system
Have a good Minecraft experience

If your interested, in the comments, say your age, what recording system you have, if you have Minecraft, Gmod, and online games, and why I should choose you! The deadline is - JAN 29, 2016 and we will be recording our first video of MINECRAFT on Jan 30, 2016!

I'm about to chuck my conputer out the window?

This is annoyed and frustration teenager, reporting for duty.
So I logged onto my laptop, clicked on Google Chrome to get some school work done. I click once, wait, nothing happens. I shake it off, click again, nothing. I check some other applications, Microsoft paint, Minecraft, (don't judge my gaming choices) they all work. So I click a few more times, then give up. I restart my computer and try again, but I get the same results! So does anyone here have any intelligence on technology? Because I sure don't!

Looking for the best streaming device for my television?

I'm looking to buy a streaming device for my room I'm fourteen and can't find the device that fits my criteria so that's where I will need your help. I recently bought a television for my bedroom, although its not a smart TV. Here is what I'm looking for.

-Headphone Jack; I do have my siblings rooms around me so If i do want to watch television I don't have to disturb anyone. This is crucial. This means that I do not want to be sitting next to the device with a local headphone jack, no! I would like to be able to sit on my bed or sofa and watch TV.

-Ability to stream; TMN GO, (Canada's version of HBO GO) Netflix, and YouTube.

-Ability to game; I would just like to do some light games a few indie games, minecraft, light racing (typically mobile games) (MINE CRAFT specially)(I'm willing to by Bluetooth game pad)

-Mirror display; I have a laptop running windows 8.1 and a Nexus 6p I would like to cast my videos and local files to the device

-Clean UI; I do not want an old or odd looking UI, I know this sounds petty but I do have a better experience with something more aesthetically pleasing.

-Ability to browse the web; I would like to be able to browse the web on this device, It must be a smooth experience lacking bugs. I don't want to do anything insane but I would like to check Tumblr and Instagram and maybe type out a document on google docs.

-It must connect by HDMI and be relatively small.

I'm looking for it to be under $250.

How to make my Minecraft laggier?

How to make my Minecraft laggier?

Added (1). So pretty much I need my minecraft to be below or equal to 20 fps for something my friend wants, halp

How to WAIT FOR A VIDEO GAME TO COME OUT?

I'm waiting for minecraft storlde episode 5 to come out an I'm tired of waiting because it is a game that releases a new ep every maybe 2 weeks but it has been past that how do you wait for a vid game to come out what do you do in your opinions