which invention is the most useful ?

I think that the floating toilet is the most useful invention because it helps reduce the chance of spreading diseases by preventing human waste from having direct contact with the flood water. If the flood water is contaminated, the bacteria can reproduce very fast because the water isn't moving and if there's a lot of bacteria  many people will start to get sick because too much bacteria can overwhelm their immune system.

AK-47 and M16

The Ak-47 is invented by Mikhail Kalashnikov and it is one of the world's most famous weapon because it is cheap and reliable for example if you throw the M16 into a box of sand, the sand will stick to the gun's mechanism and it will be very hard to clean, but if you throw the AK-47 into a box of sand you will need to only shake it a few times and you can safely shoot it without worrying that the gun's barrel will explode.

The M16 is created by Eugene Stoner during the Vietnam War; it is developed from the M14 which uses a round called .50. The M16 is different than the M14 because it uses a smaller round to increase the weapon's accuracy. At first the soldier that uses the M16 thinks that this weapon isn't good as the M14 because it takes more round to kill a person because the size of the bullet is smaller so they threw their guns away and use the Ak-47 that is collected from the Vietcong soldier.

Although the AK-47 is more reliable that the M16, but the M16 has lower recoil because it uses a 5.56 round which is much smaller than the 7.62 round that is used in the Ak-47. Lower recoil means more accuracy because if the gun has lower recoil, the gun will not shake much when shot in full auto, but less accuracy in long range.

LA Project Video Introduction

This video is about the things that I do everyday that effect me mental and physical traits . In this video I will tell you about my hobbies, family, hero, Geographic location and nationality. I hope you enjoy this video. :)

Tiger,there are credits for the musicYou can't see them becuase the quality of the file is low so it's blury. I had tried to download a higher quality video, but it always got rejected by blogger. I will try to upload the video that has a higher resolution.

Metacognition

Metacognition is when you think things out loud. In my opinion I think that netacognition is a waste of time becuase thinking in your head is faster that thinking out loud, but it helps me remember what I think. Metacognition can benafit students becuase students that can't think in their head, they can use this method to think.