User contributions for Admin

13 September 2024

• 15:3315:33, 13 September 2024 diff hist +416‎ Kitāb al-Manāẓir. The optics of Ibn al-Haytham. Books I--III. On direct vision. Volume 1. Translation. Volume 2. Introduction, commentary, glossaries, concordance, indices. Translated from the Arabic and with a preface, introduction and commentary by (Q3804) ‎ ‎Created claim: instance of (P3): scholarly article (Q259) current
• 15:3315:33, 13 September 2024 diff hist +582‎ N Kitāb al-Manāẓir. The optics of Ibn al-Haytham. Books I--III. On direct vision. Volume 1. Translation. Volume 2. Introduction, commentary, glossaries, concordance, indices. Translated from the Arabic and with a preface, introduction and commentary by (Q3804) ‎ ‎Created a new Item: Kitāb al-Manāẓir. The optics of Ibn al-Haytham. Books I--III. On direct vision. Volume 1. Translation. Volume 2. Introduction, commentary, glossaries, concordance, indices. Translated from the Arabic and with a preface, introduction and commentary by A. I. Sabra, scientific article; zbMATH DE number 49687

10 September 2024

• 15:2715:27, 10 September 2024 diff hist +679‎ free fall equation (vacuum) (Q3794) ‎ ‎Created claim: in defining formula (P597): g current
• 15:2715:27, 10 September 2024 diff hist +681‎ free fall equation (vacuum) (Q3794) ‎ ‎Created claim: in defining formula (P597): v_0
• 15:2715:27, 10 September 2024 diff hist +679‎ free fall equation (vacuum) (Q3794) ‎ ‎Created claim: in defining formula (P597): t
• 15:2715:27, 10 September 2024 diff hist +696‎ free fall equation (vacuum) (Q3794) ‎ ‎Created claim: in defining formula (P597): v
• 15:2615:26, 10 September 2024 diff hist +240‎ N free fall initial velocity (Q3803) ‎ ‎Created a new Item: free fall initial velocity current
• 15:2615:26, 10 September 2024 diff hist +232‎ N free fall velocity (Q3802) ‎ ‎Created a new Item: free fall velocity current
• 15:2515:25, 10 September 2024 diff hist +418‎ free fall model (vacuum) (Q3785) ‎ ‎Created claim: uses (P7): free fall equation (vacuum) (Q3794) current
• 15:2315:23, 10 September 2024 diff hist +345‎ free fall equation (vacuum) (Q3794) ‎ ‎Created claim: defining formula (P29): v(t)=v_0-gt
• 15:2215:22, 10 September 2024 diff hist +418‎ free fall equation (vacuum) (Q3794) ‎ ‎Created claim: instance of (P3): formula (Q1400)
• 15:2115:21, 10 September 2024 diff hist +524‎ N free fall equation (vacuum) (Q3794) ‎ ‎Created a new Item: free fall equation (vacuum), a free fall is any motion of a body where gravity is the only force acting upon it, hence neglecting the aerodynamic drag and assuming a uniform gravitational field. Moreover, assuming the falling object to be a point mass.
• 15:2015:20, 10 September 2024 diff hist +238‎ N mathematical formulation (Q3789) ‎ ‎Created a new Item: mathematical formulation current
• 15:1615:16, 10 September 2024 diff hist +405‎ free fall determine velocity (Q3788) ‎ ‎Created claim: applies model (P803): free fall model (vacuum) (Q3785) current
• 15:1615:16, 10 September 2024 diff hist +422‎ free fall determine velocity (Q3788) ‎ ‎Created claim: applies model (P803): free fall model (air drag) (Q3784)
• 15:1615:16, 10 September 2024 diff hist +418‎ free fall determine velocity (Q3788) ‎ ‎Created claim: instance of (P3): computational task (Q3783)
• 15:1615:16, 10 September 2024 diff hist +365‎ N free fall determine velocity (Q3788) ‎ ‎Created a new Item: free fall determine velocity, with which velocity will a freely falling object hit the ground?
• 15:1515:15, 10 September 2024 diff hist +405‎ free fall determine time (Q3787) ‎ ‎Created claim: applies model (P803): free fall model (vacuum) (Q3785) current
• 15:1515:15, 10 September 2024 diff hist +422‎ free fall determine time (Q3787) ‎ ‎Created claim: applies model (P803): free fall model (air drag) (Q3784)
• 15:1515:15, 10 September 2024 diff hist +418‎ free fall determine time (Q3787) ‎ ‎Created claim: instance of (P3): computational task (Q3783)
• 15:1515:15, 10 September 2024 diff hist +369‎ N free fall determine time (Q3787) ‎ ‎Created a new Item: free fall determine time, how long does it take for a freely falling object to fall to the ground?
• 15:1415:14, 10 September 2024 diff hist +422‎ free fall determine gravitation (Q3786) ‎ ‎Created claim: applies model (P803): free fall model (vacuum) (Q3785) current
• 15:1415:14, 10 September 2024 diff hist +244‎ N applies model (P803) ‎ ‎Created a new Property: applies model current
• 15:1315:13, 10 September 2024 diff hist +418‎ free fall determine gravitation (Q3786) ‎ ‎Created claim: instance of (P3): computational task (Q3783)
• 15:1315:13, 10 September 2024 diff hist +456‎ N free fall determine gravitation (Q3786) ‎ ‎Created a new Item: free fall determine gravitation, given the time that it takes for an object to freely fall from a certain height to the ground, what is the magnitude of the gravitational acceleration?
• 15:1215:12, 10 September 2024 diff hist +347‎ computational task (Q3783) ‎ ‎Added [en] description: A specific computational task associated with a mathematical model. Typically, various tasks differ from each other by the choice of given quantities (input), unknown quantities (output), parameters or constants as well as boundary conditions, initial conditions and/or final conditions. current
• 15:1115:11, 10 September 2024 diff hist +405‎ gravitational effects on fruit (Q3782) ‎ ‎Created claim: modeled by (P802): free fall model (vacuum) (Q3785) current
• 15:1115:11, 10 September 2024 diff hist +422‎ gravitational effects on fruit (Q3782) ‎ ‎Created claim: modeled by (P802): free fall model (air drag) (Q3784)
• 15:1015:10, 10 September 2024 diff hist +418‎ free fall model (air drag) (Q3784) ‎ ‎Created claim: instance of (P3): mathematical model (Q3204) current
• 15:1015:10, 10 September 2024 diff hist +418‎ free fall model (vacuum) (Q3785) ‎ ‎Created claim: instance of (P3): mathematical model (Q3204)
• 15:1015:10, 10 September 2024 diff hist +587‎ N free fall model (vacuum) (Q3785) ‎ ‎Created a new Item: free fall model (vacuum), modeling the fall of objects by the laws of classical mechanics. A free fall is any motion of a body where gravity is the only force acting upon it. Hence, we are neglecting the aerodynamic drag (vanishing drag coefficient and/or density of air) and assuming a uniform gravitational field.
• 15:0915:09, 10 September 2024 diff hist +439‎ N free fall model (air drag) (Q3784) ‎ ‎Created a new Item: free fall model (air drag), modeling the fall of objects by the laws of classical mechanics, including the aerodynamic drag and assuming a uniform gravitational field.
• 15:0815:08, 10 September 2024 diff hist +232‎ N computational task (Q3783) ‎ ‎Created a new Item: computational task
• 15:0715:07, 10 September 2024 diff hist +241‎ N modeled by (P802) ‎ ‎Created a new Property: modeled by current
• 15:0715:07, 10 September 2024 diff hist +422‎ gravitational effects on fruit (Q3782) ‎ ‎Created claim: contained in field (P801): pomology (Q3760)
• 15:0615:06, 10 September 2024 diff hist +249‎ N contained in field (P801) ‎ ‎Created a new Property: contained in field current
• 15:0615:06, 10 September 2024 diff hist +418‎ gravitational effects on fruit (Q3782) ‎ ‎Created claim: instance of (P3): research problem (Q3781)
• 15:0515:05, 10 September 2024 diff hist +244‎ N gravitational effects on fruit (Q3782) ‎ ‎Created a new Item: gravitational effects on fruit

5 September 2024

• 12:2412:24, 5 September 2024 diff hist −416‎ binary data (Q3742) ‎ ‎Removed claim: instance of (P3): data (Q376) current Tag: Manual revert
• 12:2412:24, 5 September 2024 diff hist +416‎ binary data (Q3742) ‎ ‎Created claim: instance of (P3): data (Q376) Tag: Reverted

1 August 2024

• 15:3815:38, 1 August 2024 diff hist −367‎ math0004105.9 (Q3717) ‎ ‎Removed claim: defining formula (P29): \left(\begin{array}{cc}0&1\\1&a\end{array}\right) current Tag: Manual revert
• 15:3715:37, 1 August 2024 diff hist +13‎ math0004105.9 (Q3717) ‎ ‎Changed claim: defining formula (P29): \left(\begin{array}{cc}0&1\\1&a\end{array}\right) Tags: Manual revert Reverted
• 15:3715:37, 1 August 2024 diff hist −13‎ math0004105.9 (Q3717) ‎ ‎Changed claim: defining formula (P29): \begin{array}{cc}0&1\\1&a\end{array} Tags: Manual revert Reverted
• 15:3715:37, 1 August 2024 diff hist +13‎ math0004105.9 (Q3717) ‎ ‎Changed claim: defining formula (P29): \left(\begin{array}{cc}0&1\\1&a\end{array}\right) Tag: Reverted
• 15:3615:36, 1 August 2024 diff hist −44‎ math0004105.9 (Q3717) ‎ ‎Changed claim: defining formula (P29): \begin{array}{cc}0&1\\1&a\end{array} Tags: Manual revert Reverted
• 15:3615:36, 1 August 2024 diff hist +7‎ math0004105.9 (Q3717) ‎ ‎Changed claim: defining formula (P29): \begin{array}{ll} z = & a \\ b = & a \\ f(x,y,z) = & x + y + z \end{array} Tag: Reverted
• 15:3515:35, 1 August 2024 diff hist −2‎ math0004105.9 (Q3717) ‎ ‎Changed claim: defining formula (P29): \begin{array}{l} z = a \\ b = a \\ f(x,y,z) = x + y + z \end{array} Tag: Reverted
• 15:3515:35, 1 August 2024 diff hist +39‎ math0004105.9 (Q3717) ‎ ‎Changed claim: defining formula (P29): \begin{array}{lcl} z = a \\ b = a \\ f(x,y,z) = x + y + z \end{array} Tag: Reverted
• 15:3315:33, 1 August 2024 diff hist −49‎ math0004105.9 (Q3717) ‎ ‎Changed claim: defining formula (P29): \begin{array}{cc}0&1\\1&a\end{array} Tag: Reverted
• 15:3315:33, 1 August 2024 diff hist +403‎ math0004105.9 (Q3717) ‎ ‎Created claim: defining formula (P29): \begin{array}{lcl} z & = & a \\ & = & a \\ f(x,y,z) & = & x + y + z \end{array} Tag: Reverted