Rise Definition and 274 Threads

Boston Dynamics is an American engineering and robotics design company founded in 1992 as a spin-off from the Massachusetts Institute of Technology. Headquartered in Waltham, Massachusetts, Boston Dynamics is owned by the Hyundai Motor Group since December 2020.
Boston Dynamics is best known for the development of a series of dynamic highly-mobile robots, including BigDog, Spot, Atlas, and Handle. Since 2019, Spot has been made commercially available, making it the first commercially available robot from Boston Dynamics, with the company stating its intent to commercialize other robots as well, including Handle.

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  1. P

    News US state department won't report on sharp rise in global terror

    http://www.washingtonpost.com/wp-dyn/content/article/2005/04/26/AR2005042601623.html Why is it thought that aggression will lead to less terror? Particularly pre-emptive aggression? This is from a few months ago, and I don't know if it has been discussed already. I searched for relevant...
  2. A

    Finding a temperature rise in a resistor. HELP

    I'm building an electric furnace using a coiled resistance heating element. The wire is a high temp alloy made for kilns and furnaces (Kanthal A-1 if you care.) Anyway... I can't find a way to calculate how hot the wire will get based on the current load and amount of wire. If the wire is too...
  3. M

    Gravitational Potential Energy: Does it Really Rise?

    EP = mgh as an object moves further and further away, the value of g decreases and approaches 0.. if this is true, then wouldn't potential energy approach 0 as well? According to my book, this is not true, the gravitational potential energy constantly rises the further 'up' you go If...
  4. U

    Will a Ball Take Longer To Rise or Fall?

    if I threw a ball straight up (including air friction), would it take longer for the ball to drop back to its original position from its max height or longer for the ball to rise up to its max height? here's what I'm thinking, on the way up, there is air friction and mg going agaist the...
  5. G

    Sun Rise Laser Cannon Aiming - Unraveling the Mystery

    ok... So, we see the sun everyday, right? So let's say you are standing on one point of the Earth looking at the sun rise... At where must you point a laser cannon in order to hit the sun dead centre? and why? :confused:
  6. R

    Exploring Temperature & Pressure: Why Does Water Rise in Test Tube?

    Why is it that when you place a test tube over a burning candle in a peatree dish with water, that the candle goes out and then the water from the dish rises into the test tube. Mainly what are the reasons that the water rises. I am kind of going with the "temperature and pressure are related"...
  7. wolram

    The rise and fall of the cosmic string theory

    http://arxiv.org/pdf/astro-ph/0501590 The cosmic string theory for cosmological primordal petturbations has been ruled out.
  8. T

    High rise building fire in Caracas

    Few weeks ago there was that huge fire in a high rise tower in Caracas/Venezuela,does that building collapsed?
  9. P

    Finding the Formula: Investigating Rise and Run

    undefinedundefined I am in the process of planning my Coursework, I’m investigating rise and run; the time taken for a trolley to slide down a slope with varying distances from the end and with various inclinations, and I’ve hit a wall, a problem... I'm looking for a formula that takes...
  10. U

    Ball Rise Trajectory: How Fast Was the Ball Moving?

    A tennis player standing 12.6 m from the net hits the ball at 3 degrees above the hoizontal. To clear the net, the ball must rise at lease 0.33m. If the ball just clears the net at the apex of its trajectory, how fast was the ball moving when it left the racket? would it just be...
  11. H

    Rotating Wedge & Rise of Mass: Speed Calculation

    the sloping side is frictionless, it is spun at constant speed by rotating the wedge. show that when a mass rises up the wedge a distance L, the speed of the mass is v=sqr(gLsin0) I got Fx=m(v^2/r) = mgsin0 v^2=g*sin0*r can I say r=L ? I got stuck, could you give me some hints thank you
  12. Ivan Seeking

    1 year: 1.08 F rise in Arctic ocean temp

    http://www.spacedaily.com/2004/040827174145.s71k5at1.html
  13. T

    Why does temperature rise with pressure?

    I am not a physics person. I am a lawyer. So bear with me: I do not understand why the temperature of a gas or a liquid increases with pressure. I understand the Ideal Gas Law of PV=nRT, and I understand it mathematically, but I do not understand conceptually what is happening at the...
  14. O

    Does a Hotter Air Molecule Really Rise?

    This is a thought experiment question. I have three air molecules. Two have the same speed. The third is faster than the other two. When they slam against each other, they keep their previous speed after the rebounding acceleration. I put them in a container. I hold them from wanting to...
  15. M

    Calculating Temp Rise in Conductor after Time t

    I am passing Xamps thru a Ylenth of conductor for time t sec. can anybody suggest me how to calculate temperarure rise in the conductor after time tsec in a conductor
  16. J

    Why Does Hot Air Rise? Exploring the Phenomenon of Rising Hot Air

    Why does hot air rise? What I'm really getting at is why should the speed of kinetic motion of the individual atoms of heated air rise compared to it's slow moving neighbor, is it merely because it bounces around more often and so all air competes for dominance upward such that the fastest...
  17. Monique

    Antibiotics linked to huge rise in allergies

    http://www.newscientist.com/news/news.jsp?id=ns99995047" Previously clean house holds and diet were blamed, where people growing up in a farm are less likely to develop asthma. This is the first experimental confirmation that antibiotics in fact play a role too. I guess you need to drink a...
  18. C

    A New Naturalist Philosophy On the Rise

    http://www.the-brights.net/
  19. D

    News Beyond Babylon: Europe's Rise And Fall

    [SOLVED] Beyond Babylon: Europe's Rise And Fall "Do not think that I came to bring peace on earth. I did not come to bring peace but a sword" (Mat. 10:34). That bold statement of Jesus the Christ knocks down all the traditional images of "God with us." Jesus declared WAR - not peace - on...
  20. V

    How high does sea water rise in the bell?

    Hi, I would appreciate help with the following problems: 1.) A diving bell in the shape of a cylinder with a height of 1.00 m is closed at the upper end and open at the lower end. The bell is lowered from air into sea water (p=1.025 g/cm^3). The air in the bell is...
  21. A

    Troubleshooting Rise of Nations - Software Section Post

    If anybody else has had problems with Rise of Nations can you please refer to my post in the Software section.
  22. A

    Rise of Nations, Gathering Exception Data?

    Hmmmm, i have a slight problem with RON i have recently purchased the game and have as of yet not been able to get the damn thing to play, it appears to have installed onto the computer fine without any problems but when it comes to playing the game all i can do is watch the Intro and then it...
  23. Ivan Seeking

    Auto Accidents Rise 14% During Full Moon, U.K. Insurer Says: Bloomberg.com

    "Aug. 11 (Bloomberg) -- Car accidents occur 14 percent more often on average during a full moon than a new moon, according to a study of 3 million car policies by the U.K.'s Churchill Insurance Group Plc." http://quote.bloomberg.com/apps/news?pid=10000102&sid=aFPQNod4LRn4&refer=uk The...
  24. heusdens

    Did Religious Terror Hinder the Rise of Science in the 16th Century?

    The Rise of Science by Ted Tripp We have already noted that education in the 14th and 15th centuries was dogmatic due to a shortage in books which forced reliance on scholasticism. The unique nature of our Earth formed one of the corner-stones of orthodox Christianity, so that anyone that...
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