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The environmental crisis is a big problem that challenges human life today and in the future in line with the industrial era 4.0. The environmental crisis is a concern for all parties, including those involved in the religious field, especially in the current industrial 4.0 era. Various efforts continue to be made to preserve the environment in various ways and different approaches. The perspectives of religions on the environment can be a source of inspiration and solutions for efforts to build awareness of the Indonesian people to care about the environment. Online interviews were conducted on figures who understand their respective religions well who live in Jakarta, Bandung, Malang and Denpasar City, Bali. This paper finds the environmental perspective of religions from the interviewees as an epistemological framework for positive-constructive efforts to overcome the current environmental crisis. To foster environmental awareness in line with industry 4.0, it is necessary to create a digital technology platform in the form of a virtual tour that contains knowledge and educational content on environmental care as a means of socializing values for the people of Indonesia. The virtual tour is expected to be an educational instrument that can change the mindset, empathy, attitude, and action patterns of Indonesian people to care about the environment. [ABSTRACT FROM AUTHOR]

A high-speed train is a form of transportation that connects between distant places, in this case, town to town of Jakarta and Bandung. Travel time using this means of transportation decreases since there will be no congestion as it uses dedicated railways along its travel route. During its journey, it will encounter many tunnels like the Walini tunnel. Many aerodynamic phenomena will occur and affect the train while entering, inside, and exiting the tunnel. These events will affect the whole-body surface of the train, the tunnel, and the nearby environment. The focus of the analysis of the effects is on the train's nose, influenced by the velocity and pressure that the train produces. Pressure and velocity inside the tunnel can be related to the piston effect. The pressure difference that the high-speed train brings from the outside environment into the tunnel at high speed is affected. Pressure is built up in front of the train, especially at the nose of the train. Due to its micro-pressure breakage that needs to travel to the rear part of the train to stabilize the aerodynamic condition before it becomes stable when 2-3 lengths of the train have exited the tunnel. In this paper, we will analyze the train nose shape's difference in affecting the piston effect inside the tunnel. The parameter used is when the entire train has entered the tunnel and is about to leave since the effect can be clearly seen at this particular time. [ABSTRACT FROM AUTHOR]