Riek,+Noah

Coca-Cola and Mentos:

The reaction between Coca-Cola and Mentos has a very odd explanation; I find it weird how it is dependant on the surface of the Mentos. Fruit Mentos are smoother, while the mint ones are microscopically bumpy, thus allowing it for a Carbon Dioxide forming haven. I also find how there is not much of a chemical reaction, moreover, it is a physical reaction. It's overall an unexpected answer to a funny experiment.

OK. Yes an interesting thought about the bumpy Mentos. 5 stars. MW

Redefining the Kilogram:

I'm pretty surprised how much of an uproar there is in the scientific community about the kilogram losing some weight. They have literally 90 other copies of it on this planet, I'm sure we don't need a kilogram that is official. Its like making a brand new pastry, and not letting people eat it, but you make copies of it, and sell them by the dozen. When you finally get back to the original pastry to see if it is similar to the copy, it tastes awful. First of all, you're stupid if you taste this moldy piece of flour; second, if your recipe has not decreased in sale, why bother? We are all comfortable with our kilogram, and if they think they can literally throw the whole world for a loop, they are either idiotic or just ignorant.

Noah, But what is our kilogram? Is it the original or the copy? Uncertainty in scientific measurements keeps people up at night! Please delineate your 3 points and your MVP. 4 stars. MW

Crude Oil:

I always wondered why Crude oil needed separation. Now, seeing the different atom bunches in crude oil, I can see why. I find it fascinating how we get our liquid gold by such a simple process. I would like to try to distill crude oil sometime. It seems quite fun. Seeing the huge distillation sites makes me want to see one of these in action. The engineering in this world never ceases to amaze me, we make things I never would have thought of!

Noah, A bit light on the chemistry and important/interesting points. 4 stars. MW

Motion Detectors:

What I knew; -Two types of motion detectors are Infrared sensors( AKA they sense body heat), and a beam of Infrared light that when obstructed, will stop the signal of the infrared beam. -Bats use echos to find their food at night, as it is very dark. -Stores and schools use motion sensor technology in their bathrooms, doors, etc.

What I learned; -Echo motion detectors, that send out waves of sound(which if are obstructed tell the machine to do something). -Most motion detectors use Infrared of some sort. - Rattlesnakes can see Infrared rays from their prey at night.

Noah, Looks good. You followed the prompt nicely! 5 stars. MW

Elemental Creation

In a star, the first 26 elements can be found. When a lot of heat is applied to Hydrogen, it can morph into other elements.

I like the word morph. 5 stars. MW

Sugar; an Unusual Explosive

The sugar dust explosion was quite a revelation in the industrial world for safety, as you had over 40 injuries and 13 casualties from this explosion, not to mention one less sugar refining plant. The way it occurred was rather interesting, as the less surface area the sugar particle had (i.e. the granules of sugar), the more oxygen surrounded it, ready for combustion. The combustion created an explosion, due to the rapid expansion of gases being emitted. (75)

Noah, OK but any relevance to our class? 4 stars. MW

Helium Balloons

I found that the existence of a buoyant force in the air was interesting. It's pretty neat to think that I have around a fifth of a pound pushing me up at all times. It's cool how it works. I also found that the effect that a helium balloon has in a car is neat. How it will practically stay with the car's original trajectory due to its buoyancy is fascinating. It surprised me that a little less force presses down on us. (75)

Noah, Clearly define the VIP's and MVP! 4 stars. MW