10 citations · 18 across the 7 of their papers we have counts for
8 papers
Slope of Dry Granular Materials Surface is Generally Curved
Fathan Akbar, Elfi Yuliza, Nadya Amalia +2
As if it has become a consensus that the slope of the granular heap is straight, and from that, an angle of repose is defined. However, closer inspection shows that the slopes are…
Bending of Spaghetti Beams and Columns Exposed to Hot Steam Reveals Several Physical Properties of the Spaghetti
Fathan Akbar, Mikrajuddin Abdullah
In this paper, we show that bending of spaghetti beams and columns exposed to hot steam reveals the time evolution of young modulus, the diffusion coefficient of water molecules pe…
Sarong rolled around a body demonstrates the force for separating two sheets joined by folding and rolling is very large
Fathan Akbar, Mikrajuddin Abdullah
There are a lot of new sciences that have been inspired by common phenomena and even by old traditions practiced in our daily lives. Eventually, it may induce unexpected new techno…
Why the same key can open different padlocks?
Fathan Akbar, Mikrajuddin Abdullah
We accidentally observed that one key can open two padlocks from different brands. Based on this observation, here we derived equations to estimate the number of different padlocks…
Minimal Tools for Accurately Measuring the Coefficient of Kinetic Friction
Fathan Akbar, Nova Lailatul Rizkiyah, Mikrajuddin Abdullah
Measuring the coefficient of kinetic friction is much more difficult than that of the static counterpart. Here we report a simple method using minimal tool to accurately measuring…
Analytical Solutions for Bending Of Fireworks and Similarities with the Solution of Electromagnetic Wave Diffraction
Fathan Akbar, Mikrajuddin Abdullah
In this paper we examine more deeply about the bending mechanism of rod-shaped fireworks which burned from the free end. We derived new analytic equations. Surprisingly, we obtaine…
Zipper Model for the Melting of Thin Films
Mikrajuddin Abdullah, Shafira Khairunnisa, Fathan Akbar
We proposed an alternative model to criterion of Lindemann for melting that explains the melting of thin films on the basis of a molecular zipper-like mechanism. Using this model,…
Bending of Sparklers
Mikrajuddin Abdullah, Shafira Khairunnisa, Fathan Akbar
A new equation is proposed to explain the curvature of spent sparklers. We found the state of a segment of the sparkler to depend strongly on the state of its spent segments. The e…