How Area 51 Hid Secret Aircraft

Have you ever thought of what they do in area 51? Much speculated theories about US stealth aircraft are now confirmed and widely known. The Americans were testing a prototype of the OXCART. Apparently the Americans had to think about various ways to hide their aircraft from people but they had a bigger problem they knew they were surrounded by Russian spy satellites so they played a game of cat and mouse. They knew exactly the schedule of Russian satellites and they tried to trick them by making aircraft models of cardboard and other common materials in order to trick the infrared satellites buy casting fake shadows. When they saw the satellite coming over the horizon they would always scoot the planes in the garage where they had fake models of airplanes, which made it very difficult to test because they would have to go and pull it out and in and so on. Later on they discovered that Russian had a drawing of their plane thanks to the infrared satellite. When they plane is tested in the hot dessert it would create cool silhouette which was still visibly by infrared satellites. Sometimes they put heaters next to the fake models of plane’s engines to look like the aircraft has just landed. Despite all the Russians effort they never figured out the secrets of the plane before it was made public in mid 1960’s. It could reach the speed of 2000 miles per hour and cross the American continent in 70 minutes. Even thought it was really high tech it was not good enough to spot Russians satellite when flying over soviet union so it got really soon its improved successor. 

Scientists track falling satellite expected to hit Earth this week

Have you ever wonder what would happen if a falling satellite was about to hit earth in a week? Well a satellite will hit the earth this Friday. Scientist predicted that the satellite will most probably in water or on an uninhabited place. Since water covers most of the planet it is most likely it will also fall into water. The Chances of someone being hit by it is 1 out of 32000, but the chances of you being hit are 6 times less than winning the lottery. Most of NASA’s six ton Satellite would disintegrate on entering the atmosphere but there are still some parts that could cause serious damage. They say that 26 hazardous parts will enter the atmosphere intact weighting about 500 kilograms and moving at the speed of 90 to 380kph. It doesn’t seem like lots of speed but depending on how much it weights it will crush anything. There was also another satellite from Germany was going 28000 miles per hour but it landed in water so there were no casualties. 30 parts of the satellite entered the atmosphere weight with combined mass of one and a half ton. The satellite was launched at 1991 and decommissioned at 2005. The agency will make further updates as when the object is coming closer. NASA said that if any part of the derby lands near someone that they return the object by contacting the local police. Although there might be some arguments of if it lands on private property some people might not want to return it.

Lasers could be used t odecet roadside bombs!

Have you ever wonder how are we suppose to know were a bomb is so we can save people, well with the new invention from a research team in Michigan State University. Road side bombs account for around 60 percents of soldiers deaths. Lasers which can be used for a simple presentation also can use the sensitivity to canvas and detect explosive devises. Dantus said "Having molecular structure sensitivity is critical for identifying explosives and avoiding unnecessary evacuation of buildings and closing roads due to false alarms,". They detect explosive devise by using chemicals sensors. If the targeted object has the chemicals need for a bomb they would know the bomb type and where it is. Their newest laser can detect quantities as small as a fraction of a billionth of a gram. Another way it sees this is the chemical structure with differs from other substances.

My Scientific Summer!

Near the end of summer i when to basket ball camp, i know it sounds like it has little involved with science but it has a lot more. There we stayed ten days just training basketball.The first scientific thing is the how you shoot. The proper shot requires the shooter to but a back spin to the ball. The reason behind that is when the ball hits the board with the back spin it changes velocity towards the net making more likely to go in. The second thing is bouncing the ball, when it hits the ground the partials will go toghter and for a split second the ball will be deformed. If the ball if underinflated the particles have more space so it wont bounce. The third thing is change of direction for it to be quick and not slip the friction between the ground and the basketballs players shoes. Hope you enjoyed my blog post!

Lab

Today in science class we did a lab to see dose the mass of a marble affect how it moves. One question n that we had was when given a force what happens to it motion. We tested this lab by taking different kind of balls to see how they move when force is applied. When we applied we used straw and blew through them to make force. First we used the light weight balls to see how they move most of them just came across the table easily and didn't make any curves because they were going quick. Then we came to the bigger balls. The tennis ball was too heavy and we couldn’t move it. The Styrofoam balls were big but they didn’t much density so they were easy to my. So the mass of the marble dose affect its movement because the more mass the more force has to be applied. I would like for us to see which marble will accelerate the fastest when going down a ramp.

Marble Motion

Today in science class we did a lab to see dose the mass of a marble affect how it moves. One question n that we had was when given a force what happens to it motion. We tested this lab by taking different kind of balls to see how they move when force is applied. When we applied we used straw and blew through them to make force. First we used the light weight balls to see how they move most of them just came across the table easily and didn't make any curves because they were going quick. Then we came to the bigger balls. The tennis ball was too heavy and we couldn’t move it. The Styrofoam balls were big but they didn’t much density so they were easy to my. So the mass of the marble dose affect its movement because the more mass the more force has to be applied. I would like for us to see which marble will accelerate the fastest when going down a ramp.

From Feet to Fanthoms

This week we have been learning about the measurement system. We did a lab to see if the old metric system was correct so we used there measurement system. The Guiding question is what is the importance of having an International measuring system? How accurate are old measurements using body parts? My hypothesis is it is not that accurate because body part grow at different times so some time u may be huge or to small so it isn't accurate. So for the lab we had to measure different objects with their system. The materials we used were:
• Partner
• Objects in the classroom (whiteboard, desk, hallway, SPACE book, Peep, Crayon box)
• List of ways to measure:
Pace: legs outstretched =1 yard approximately or 1 meter
Egyptian cubit= elbow to tip of the middle finger= 18 inches or 45 cm
Fathom = middle finger to middle finger across the body = 6 feet, 180 cm, 1.8m
Palm = across the palm of the hand = 3 inches or 8 cm
Hand including thumb = 4 inches or 10 cm
Span = from tip of thumb to tip of little finger= 3 palms or 9 inches or 24 cm
English yard = from fingertip of arm to nose = 36 inches or about 1 meter
Foot = 12 “or 30 cm approximately
Fingernail = tip of pinky =1/2 inch = 1 cm.
• Meter stick or measuring tape
• Calculator
The process that we had to do is:
1. Make a data table in your notebook with 7 columns and 7 rows. (See below).
2. Choose one of the six objects or distances you will measure.
3. Determine what form of measurement you will make with the first object. (For example: Length of the 6th grade hallway with paces, book with palm or hand, fingernail for crayon box, etc…)
4. Measure it with the determined form of measurement 3 times, and then find the average.
5. Measure it with the meter stick/or measuring tape and find the actual measurement. (IMPORTANT!!!!! BE SURE THAT THE UNITS OF MEASUREMENT STAY THE SAME, either inches or centimeters or yards or feet or meters and the average needs to be in the same units)
6. Repeat the same for each of the five objects that are left and measure it with a different type of measurement, 3 times, find the average and again the actual measurement.
7. Compare class data results. Find the average of these results.

Data analysis: When i analyzed my data i saw that the measurements weren't that far apart so it wasn't that accurate but it could still be used.

Concusion: The old metric system was not really accurate but useful since if you don't have a ruler at hand you can use it. The importance of having a international measurement system is important because we can use the same one and understand it. Well my hypothesis was correct. The smaller object were easier to measure since it didn't take much time. I prefer to use the modern method since it easier and less demanding but if i didn't have a ruler i would prefer the old system.

Further inquire: I don't have any question a i think i did everything correct. Next time i would like to measure more object