User Narasimham

25 votes

Why do ballpoint pens write better on pages that have pages below them?

answered Oct 8, 2017 at 20:08

4 votes

What causes the water in this fountain to reverse direction?

answered Jan 16, 2018 at 15:33

3 votes

Bending moment equation explanation

answered Aug 22 at 12:59

2 votes

Identify the hollow sphere without making a sound!

answered Sep 10 at 20:37

2 votes

Why is it possible to keep an object, say a book, horizontal while holding its corner?

answered Jan 11 at 16:38

2 votes

Accepted

Which block reaches the floor first?

answered Apr 4 at 9:39

2 votes

Accepted

How would a carbon-fiber bone compare to a biological bone under common workloads?

answered Mar 22, 2017 at 23:19

1 vote

When does the wagon-wheel effect occur?

answered Dec 30, 2014 at 18:44

1 vote

Can we see a rainbow on moon or any other celestial body?

answered Apr 20, 2015 at 18:26

1 vote

What is the radius of gyration when the axis of rotation passes through the centre of mass

answered Mar 3, 2018 at 10:13

1 vote

Why is the fish in the water swifter than the bird in the air?

answered Dec 29, 2017 at 8:14

1 vote

Position vs time graph with constant acceleration

answered Dec 29, 2017 at 8:22

1 vote

Rainbow clarification

answered Sep 15, 2017 at 13:48

1 vote

Depth of field of the human eye

answered Jun 13, 2018 at 7:57

1 vote

Accepted

Center of mass of a symmetrical rigid body

answered Dec 18, 2019 at 17:21

1 vote

What does the derivative of the unit radius vector with respect to time represent?

answered Nov 2, 2022 at 21:42

1 vote

Parabolic water flow from hole in water bottle

answered Mar 25, 2023 at 3:19

1 vote

Why are diyas kept in water before pouring oil in them? What makes diyas absorb less oil after they are being soaked in water?

answered Nov 4, 2021 at 21:02

1 vote

Curvature due to changes in surface tension

answered May 24, 2022 at 10:53

1 vote

Why is the centre of mass of a semicircular wire outside the body?

answered Sep 30, 2020 at 21:45

1 vote

Center hole in a helical coil spring - formula for tightening during extension?

answered Jul 28, 2022 at 0:40

1 vote

Pascal's law further simple proof for students of an high school

answered Sep 23, 2022 at 20:17

1 vote

Number of images formed by a convex lens

answered Aug 31 at 17:24

1 vote

Why does a cantilever beam bend instead of shearing when a point load is applied?

answered May 13 at 23:14

0 votes

What is angular momentum and torque due to the center of mass? Give me an example

answered May 25 at 0:16

0 votes

What is this notation with an un-sandwiched comma in the subscript?

answered May 25 at 16:16

0 votes

Why does the surface of a lake suddenly change texture

answered Jul 25, 2017 at 19:40

0 votes

Inelastic static tetrahedron with 3 fixed vertices, and 1 free vertex with an applied force

answered Oct 24, 2022 at 11:49

0 votes

How to determine the minimum "Arrival Distance" given a maximum velocity, acceleration and jerk along with an initial velocity and acceleration?

answered Feb 2, 2021 at 10:09

0 votes

Young's modulus of a body submerged in a fluid

answered Sep 28, 2021 at 17:52

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64 Answers

Why do ballpoint pens write better on pages that have pages below them?

What causes the water in this fountain to reverse direction?

Bending moment equation explanation

Identify the hollow sphere without making a sound!

Why is it possible to keep an object, say a book, horizontal while holding its corner?

Which block reaches the floor first?

How would a carbon-fiber bone compare to a biological bone under common workloads?

When does the wagon-wheel effect occur?

Can we see a rainbow on moon or any other celestial body?

What is the radius of gyration when the axis of rotation passes through the centre of mass

Why is the fish in the water swifter than the bird in the air?

Position vs time graph with constant acceleration

Rainbow clarification

Depth of field of the human eye

Center of mass of a symmetrical rigid body

What does the derivative of the unit radius vector with respect to time represent?

Parabolic water flow from hole in water bottle

Why are diyas kept in water before pouring oil in them? What makes diyas absorb less oil after they are being soaked in water?

Curvature due to changes in surface tension

Why is the centre of mass of a semicircular wire outside the body?

Center hole in a helical coil spring - formula for tightening during extension?

Pascal's law further simple proof for students of an high school

Number of images formed by a convex lens

Why does a cantilever beam bend instead of shearing when a point load is applied?

What is angular momentum and torque due to the center of mass? Give me an example

What is this notation with an un-sandwiched comma in the subscript?

Why does the surface of a lake suddenly change texture

Inelastic static tetrahedron with 3 fixed vertices, and 1 free vertex with an applied force

How to determine the minimum "Arrival Distance" given a maximum velocity, acceleration and jerk along with an initial velocity and acceleration?

Young's modulus of a body submerged in a fluid