Conceptual Frameworks on the Relationship Between Physics–Mathematics in the Newton Principia Geneva Edition (1822)

Pisano, Raffaele; Bussotti, Paolo

doi:10.1007/s10699-021-09820-2

Cited by 11 publications

(1 citation statement)

References 117 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Physics is the science that seeks to understand the beautiful rules and/or patterns of nature and describe them in mathematical forms. Hence, physics itself explores and describes phenomena that occur in everyday life via mathematical descriptions that can be learned by students [1]. Thus, physics teachers are naturally able to instil physics concepts that are combined with various daily phenomena to their students in a way that is fun and easy to understand.…”

Section: Introductionmentioning

confidence: 99%

Measuring the refraction index of luminescent carbon nanodots forming Gaussian beam using the tracker software

Dwandaru,

Zulaikha,

Sulaindra

et al. 2024

Rev. Mex. Fis. E

View full text Add to dashboard Cite

Nanotechnology is currently regarded as one of the fastest-growing technologies. Equipping students with some understanding of nanotechnology in relation to physics ideas may trigger their interest and inspire them to learn physics. This study is aimed to measure the refraction index of Cdots solution using the Gaussian beam and Tracker software. The method used in this research is quantitative descriptive method with the stages of research that include designing, construction, developing, and testing the measuring instrument. The procedure in this study begins by preparing the Cdots solution from cajuput oil (CJO) distillation wastes. The Cdots are then characterized using the UV-visible (UV-Vis), photoluminescence (PL), time resolved-PL (TRPL), and Fourier transform infrared (FTIR) spectroscopies. The Cdots solution is then put into a reaction tube with solution height variation. The violet/UV laser pointer is exposed upward towards the Cdots solution from the bottom of the reaction tube producing a Gaussian beam inside the reaction tube. The Gaussian beam is then photographed, which then the format is converted into a video format. The video format of the Gaussian beam is analyzed using the Tracker software. The characterizations of the Cdots show i) an absorption peak at a wavelength of 216.0 nm, ii) an emission peak at 512.29 nm indicating cyan luminescence, iii) an electronic lifetime of 51.3 ns, and iii) functional groups of O-H; C=C; and C=O. Moreover, the Gaussian beams are formed for various heights of the Cdots solution, i.e.: from 5.364 cm to 13.000 cm. Using the Tracker software, the value of the Cdots’ refraction index is 1.29 0.03, which is comparable to the refraction index of water. This measuring instrument has the potential to be used in high school physics classes and/or first-year university physics courses.

show abstract

Section: Introductionmentioning

confidence: 99%