What is Bolt: Definition and 136 Discussions

The BOLT Browser was a web browser for mobile phones including feature phones and smartphones that can run Java ME applications. The BOLT Browser was offered free of charge to consumers and by license to Mobile network operators and handset manufacturers. BOLT was produced by Bitstream Inc., the company which previously produced the ThunderHawk for Mobile network operators and handset manufacturers.
BOLT was originally introduced into private beta on January 15, 2009 and was made available to the public on February 16, 2009 when the public beta was announced at Mobile World Congress in Barcelona. BOLT supported Java-based handsets with Java MIDP 2 and CLDC 1.0 or higher. BOLT also has specially optimized version for BlackBerry smartphones and worked with Windows Mobile and Palm OS devices that employ a MIDlet manager or Java emulator. BOLT was built using the WebKit rendering engine to display a full Web page layout as found on desktop web browsers.
In December 2011, BOLT Browser was discontinued and all installs were rendered useless.

View More On Wikipedia.org
Recent contents Top users
  1. N

    Graph Velocity-Time of Usain Bolt 200m Race

    I am looking for a graph of velocity vs time for the 200m race of Mr Usain Bolt which he did in 19.30 seconds he did during the olympic races. I appreciate if someone can provide it in this forum. Thanks Ps. sorry if i posted it in the wrong place, but i don't in which category i should put it.
  2. J

    Loose bolt falling from elevator

    Homework Statement A bolt comes loose from the bottom of an elevator that is moving upward at a speed of 6.88 m/s. The bolt reaches the bottom of the elevator shaft in 3.90 s. How high up was the elevator when the bolt came loose? Homework Equations d= v(initial)t + .5at^2 The...
  3. M

    Stresses in Circular Bolt Patterns

    Hello, all. Can someone please direct me to a good source of information which explains how the threaded fasteners in a circular bolt pattern - such as used in a flanged joint - collectively "share the load", and how the stresses which arise due to tension, bending, and shear forces acting upon...
  4. C

    Energy of a lightning bolt

    Homework Statement During a lightning strike, 30C of charge may move through a potential difference of 1.0 x 10^8 V in 0.02s. The total energy released by this lightning bolt is ______ J. Homework Equations I = q/t The Attempt at a Solution I'm really not sure what to do...
  5. M

    Calculate the time of flight of the bolt from ceiling to floor

    Motion question - please help Homework Statement A lift ascends with an upward acceleration of 1.5ms^(-2). At the instant its upward speed is 2.0ms^(-1), a loose bolt drops from the ceiling of the lift 3.0m from the floor. Calculate: (a) the time of flight of the bolt from ceiling to floor...
  6. 7

    Brake caliper bracket mount - single shear bolt question

    I'm installing a set of front brake calipers on my track car, and the mounting brackets are made of aluminum (7075). What is the better mounting scenario - Thread the mounting bolts directly into the aluminum, or use a through hole mounting method with a proper bolt and nut combination? The...
  7. J

    Calculating Bolt Diameter for Shear Stress in a Riveted Joint

    This is a problem given for laboratory analysis, but there are no relevant equations in our textbook to help solving the problem. Could anyone just give me a hint on what equation should be used to solve the problem? the only relevant equation I know is : shear stress = F/A 1. The figure...
  8. 9

    Calculating Torque for Helicopter Blade Rotation

    Homework Statement Consider a simple helicopter blade, attached to a bolt at its end. The bolt is made to rotate by a powerful motor, and the blade therefore rotates. The blade has a length L= 7.8 m and mass M= 100 kg. The blade is shaped approximately like a long thin, uniform rod. What...
  9. C

    Single Shear Bolt application, strength info required

    I have a suspension arm that I am rebuilding, the main reason is to make it adjustable in length, and the other is to replace the ball joint. The original equipment is a standard automotive ball joint, greased and the shaft is 1 piece with the ball. The new setup would use a 5/8 spherical...
  10. S

    Calculating Maximum Torque to Loosen Stuck RV Bolt

    Homework Statement You are trying to loosen a stuck bolt on your RV using a big wrench that is 50 cm long. If you hang from the wrench, and your mass is 55 kg, what is the maximum torque you can exert on the bolt? Homework Equations T=Fr I did T=55kg*.5m The Attempt at a...
  11. B

    What is the optimal bolt size and orientation for supporting a highway sign?

    Homework Statement We were provided with the dimentions and specifications for a highway sign, and given assumptions for weight and wind forces acting on it. Firstly, we had to calculate the reactions at the base. And then draw stress blocks and Mohr's circle for four points on the base of...
  12. B

    Converting ANSI to NAS Bolt Specifications: Advice Needed

    I need to spec out some bolts according to the NAS standard. The problem is that I only have the dimensions/specifications in ANSI format. Has anyone ever worked with NAS before? I can't find anything to help me figure out what size bolt I need.
  13. R

    Beam and bolt shear force

    if a beam has a shear force limit of x and a bolt that is passing through the beam has a shear force limit of y and y < x would the maximum allowable shear force for the whole system become y?
  14. M

    How Do You Calculate the Maximum Bolt Angle Through a Flanged Hole?

    I have a flange of known thickness, with a bolt hole of a known diameter through it. I am trying to calculate the maximum angle off from the centerline through the bolt hole that the bolt will be able to pass ( I know the max diameter of the bolt as well ). Is there a formula for this, given...
  15. E

    What Happens to Torque as the Wrench Lowers?

    1. The Funny Intro: The summer before he entered high school, Prof. Schueller’s had to run the farm because his father had an emergency appendectomy. To adjust the “thread” (the width between the wheels) of a John Deere 4020 tractor, a torque of about 1600 ft-lbs. was needed to loosen...
  16. H

    Calculating Crossbow Bolt Velocity

    I should preface this, this may be the stupidest question yet on this forum. But I can't get it to work out right so I'm going wrong somewhere obvious I'm sure... Homework Statement A crossbow is readied for release. Suppose it takes 45.0 pounds of force to draw the arrow back by 13.0...
  17. R

    Minimum Bolt Diameter & Distance for Bolt Shear Force, 200kN

    the shear stress in each bolt is to be limited to 250mpa. i need to determine the minimum diameter of the bolts and the distance from the end edge of the centre plate to the centre of the bolt holes. All plates are 6mm thick and the punching shear stress for the centre plate is not to exceed...
  18. A

    Calculate Fatigue Life of Custom Bolt

    Hi All, We have manufactured a custom bolt (similar to standard bolt). Now we need to calculate the fatigue life of the bolt. Could you please guide me in calculating the fatigue life? Thanks, Ana
  19. A

    Calculating Bolt Proof Load

    Hi, What is Proof load of a bolt? I need to calculate the proof load of a bolt? I have searched the net but could not find it. Please help me. Thanks, Ana
  20. M

    Converting torque applied to a bolt into the linear force exerted by the bolt

    Hello all, I have an experiment set up where I need to compress some material using some G clamps. I have a torque wrench which I can use to tighten up the gclamp to a known torque but am having trouble converting this to the linear force that will actually be applied to the material...
  21. B

    Anyone determine what the definition/properties of this bolt

    Anyone determine what the definition/properties of this bolt is? 3/4 x 4 CS-N-LW
  22. A

    How can I prevent my shoulder bolt axle from causing my wheels to lock up?

    Coaching grade school track, I have to carry around several starting blocks. Last year, to store for the next season, I made a rude carrier from 3/4 plywood that held 5 blocks, stacked on top of each other. I put wheels on the back of the cart, using shoulder bolts, which the kind man at Home...
  23. I

    What Is the Correct Bolt Diameter for a Rigid Flange Coupling?

    A rigid flange coupling, secured by 3 bolts on a PCD of 200mm, is subjected to a torque of 10kN/m. Determine the bolt diameter (to the nearest mm) Bolt material shear stress = 225N/mm^2 Factor of safety = 2 Hi, I'm chris, I'm an aeronautical engineering student and I'm a little puzzled by...
  24. W

    Lightning bolt electrons problem

    A strong lightning bolt transfers about 25 C to Earth. How many electrons are transferred? 1 electrons = 1.60E-19 so.. 25 / 1.60 E -19 = 1.5625E-18 electrons but the answer that my teacher gave us is 1.6 E 20 electrons what did i do wrong?
  25. S

    Free fall acceleration of a bolt

    Homework Statement A bolt is dropped from a bridge under construction, falling 98 m to the valley below the bridge. (a) In how much time does it pass through the last 30% of its fall? (b) What is its speed when it begins that last 30% of its fall? (c) What is its speed when it...
  26. C

    An elevator moving up and a bolt falling down

    A bolt comes loose from the bottom of an elevator that is moving upward at a speed of 6.38 m/s. The bolt reaches the bottom of the elevator shaft in 3.85 s. How high up was the elevator when the bolt came loose? I integrated 6.38 to get the position equation and plugged in 3.85. However...
  27. wolram

    Invaluable Tool: Multi Positional Obstructed Screw, Nut, Bolt Starter

    It is a multi positional obstructed screw, nut , bolt starter, it is very functional and can save hours of build time, material costs are well below a £1, the tool could be a throw away or reusable for repeat jobs. Would there be a market for such an invaluable tool?
  28. A

    Calculating Voltage of Cloud After Lightning Bolt Transfer

    Homework Statement The Electric field between a cloud and the ground is 1.0X10^6 N/C. If 35C of charge is transferred to the ground (lightning bolt) over a distance of 2.3km, what is the voltage of the cloud. Homework Equations q=mg/E? The Attempt at a Solution I don't have the...
  29. E

    Tapped Hole Info: M6 Size & Bolt Diameter Clarified

    I just want to clarify. A tapped hole is basically a hole that has been threaded for a bolt. Is this correct? So would a tapped M6 hole be 6mm in diameter for a 6mm diameter bolt? Cheers
  30. B

    Lightning bolt power and Back to the Future

    This is the second time I write this post because the first time it got deleted...so I must say that I am not going to go into all the detail that I went into the first time I wrote this..not to mention that I'm a bit p.o.'d. In back to the future, doc brown says that a lightning bolt can...
  31. P

    Calculating Minimum Diameter for Iron Bolt to Withstand Shear Forces

    I need help getting started on this. Question: An iron bolt is used to connect two iron plates together. The bolt must withstand shear forces up to about 3200 N. Calculate the minimum diameter for the bolt, based on a saftey factor of 6.0. Here is what I know so far. Shear Strength is 170...
  32. S

    Bolt falls off rocket, find rocket acceleration

    A rocket is launched straight up with constant acceleration. Four seconds after liftoff, a bolt falls off the side of the rocket. The bolt hits the ground 6.70 s later. Find the rockets acceleration. I don't understand how to set up this problem, I've never done something like this ...
  33. F

    Find NAS/MS Bolts Near Detroit: 8 MS21250-05056 Needed

    Help me find a bolt... Ok, I'm lookng for a bolt distributor (as close to the Detroit area if at all possible) who sells NAS/MS bolts. Specifically, I need 8 MS21250-05056's. I know this is an odd request, but I've searched high and low for said jewels but the distributors I've dug up thus...
  34. S

    Comparing Magnetic Fields of Torus & Bolt: Which is Stronger?

    Which one has more magnetic field Torus or Bolt when current is going though? :eek:
  35. 1

    Magnetic field of a lightning bolt

    In a lightning bolt, 14 C of charge flows in a time of 1.5 x 10^-3 s. Assuming that the lightning bolt can be represented as a long, straight line of current, what is the magnitude of the magnetic field at a distance of 27 m from the bolt? do i use 27 m as the radius in the equation B =...
  36. M

    Why Does Work Done by Lightning Bolts Have Different Signs?

    Two questions. 1. a negative lightning bolt delivers a 15C charge from the ground to the BASE of a thunder cloud (Vpd = 5.0GV) 2. A positive lightning bolt delivers 20Ccharge from the Top of a thunder storm cloud to the ground (Vpd=30GV). Both questions ask how much work is done to move...
Back
Top