7,235 reputation
1130
bio website embedinc.com/olin
location Littleton, Massachusetts
age 58
visits member for 1 year, 9 months
seen 21 hours ago

Electrical engineering consultant specializing in microcontrollers and the circuitry around them. Master of engineering in EE from Rensselaer Polytechnic Institute in 1980.

We are certified Microchip design partners, and have been in the top catagory consistantly since around 2000. Various free downloads related to developing PIC firmware and other things are available at http://www.embedinc.com/pic/dload.htm.


Oct
6
answered What keeps water molecules in air from falling down?
Oct
4
answered Glass tends to be cold?
Sep
30
awarded  Explainer
Sep
28
revised 7 Billion people jumping at once
added 814 characters in body
Sep
28
answered 7 Billion people jumping at once
Sep
26
comment Existence of a physics-god
By bringing up god you already dragged this discussion into theology. This kind of nonsense simply doesn't belong here. -1 from me too.
Sep
25
answered Will 5 pizzas in the same Hot Bag stay warmer than 5 pizzas in 5 separate Hot Bags?
Sep
25
comment What does it mean to have two phase coherent signals at different frequencies?
You can still talk about a phase relationship between two frequencies when they have a integer ratio, such as 3:2 in your example. In that case, you assume some reference, like the positive zero crossing, in each signal.
Sep
25
answered Why is Earth's climate so stable?
Sep
25
comment The earth is spinning, so why don't we jump and land on a different location?
@Holger: As the projectile falls back down, the discrepancy between its lateral speed and the ground's lateral speed decreases again, but the discrepancy still exists until the projectile hits the ground. The west offset distance is the time-integral of this lateral velocity discrepancy. The down portion of the flight contributes the same west offset as the up portion.
Sep
25
answered The earth is spinning, so why don't we jump and land on a different location?
Sep
24
comment Can there be a string so thin as to be invisible, but that can still support a visible weight?
@bobie: I don't see the point to your edit. Your version says the same thing the original did, just using words differently. The only difference is style, not content or correctness, so should be left up to the author unless it gets in the way of clarity (which the original didn't).
Sep
24
answered Can there be a string so thin as to be invisible, but that can still support a visible weight?
Sep
16
comment If the universe is expanding, what is it expanding into?
1: Into more universe. 2: Everywhere. 3: Nobody knows. 4: Nobody knows.
Sep
14
comment How to calculate when wheels are better than legs?
First, your "question" contains several assumptions that you haven't proven and I'm not at all sure are correct. This therefore can't be answered in its current form. Second, this is a biomechanics problem.
Sep
11
comment Is this scene from the A Team explainable by Physics?
@Aron: As I said in my answer, even if I was off by a order of magnitude, the result would still be the same. You link shows that muzzle velocity is almost 1800 m/s, but shell mass a bit lower than the 10 kg I used and the M1A1 tank a bit heavier than the 50 tons I used. All in all it seems I was low by a factor of 5. 0.8 miles/h speed change still isn't going to matter.
Sep
11
awarded  Enlightened
Sep
11
awarded  Nice Answer
Sep
10
answered Is this scene from the A Team explainable by Physics?
Sep
10
comment Is this scene from the A Team explainable by Physics?
Very little from The A Team is explainable by physics.