Recent content by Rose Gardener
-
R
High School How much force was applied by the horse?
It was from a movie, so yes, fake. But let's assume it did happen. How much force would be needed?- Rose Gardener
- Post #3
- Forum: Mechanics
-
R
High School How much force was applied by the horse?
So the horse kicked the chubby guy, he was lifted off the ground, flew, and hit the parked car. Let's assume: the chubby man was 220 lbs (roughly 100Kgs), the distance he "traveled" was 15 ft (roughly 5M). Time it took the guy to hit the van after being kicked by the horse of 1 sec. Being...- Rose Gardener
- Thread
- Applied Force
- Replies: 3
- Forum: Mechanics
-
R
Temperature for 3 or 4ft underground
Thanks guys, this is what I am trying to achieve: I am trying to grow organic vege with hydroponic here in the desert. One of the problems would be the water temperature, plants simply do not like warm feet. From July - Sept, day time temp could reach 115F (46C) and even night temp could be...- Rose Gardener
- Post #5
- Forum: Earth Sciences
-
R
Temperature for 3 or 4ft underground
There are often talks of ground temperature being a constant 55F at 6ft or so. But some also said that in very hot and dry climate, say Arizona desert, temperature is much higher at the same depth. Anyone has any idea of underground (4ft? under) temperature in dry hot desert? Thanks- Rose Gardener
- Thread
- Temperature
- Replies: 7
- Forum: Earth Sciences
-
R
Why overall tire diameter shrank over the decades?
I can think of some reason for larger tires off the top of my head: Largest dia tires should last longer? less rev to cover the same distance? Can accommodate bigger brake rotor. In case of off roading, can climb over larger objects. In case of electric wheel motor, more space.- Rose Gardener
- Post #7
- Forum: Mechanical Engineering
-
R
Why overall tire diameter shrank over the decades?
Can you detail the relationship between condition of road vs tire diameter?- Rose Gardener
- Post #3
- Forum: Mechanical Engineering
-
R
Why overall tire diameter shrank over the decades?
Automobile tires has been gotten smaller, diameter wise over the years. Below were based on Cadillac of different era. 1915 - 51-Eight with 36x4.5 tires with overall dia 36.8" and 4.75" wide 1925 - V63-Eight with 33x5 tires with overall dia 34.88", and 5.88" wide 1936 - V16 with 750x16...- Rose Gardener
- Thread
- Diameter Tire
- Replies: 6
- Forum: Mechanical Engineering
-
R
Undergrad Formula for Evaporative Cooloer (Swamp cooler)
I am trying to figure out if I could grow cool weather vegetable (say lettuce) in hot but dry climate by using swamp cooler to lower the temp of shade house. I have downloaded daily temp and humidity from www.weatherunderground.com and a chart on the potential temp drop: The thing is that I...- Rose Gardener
- Thread
- Cooler Formula
- Replies: 1
- Forum: Thermodynamics