The use of disposable primary batteries causes environmental pollution due to the lack of battery waste treatment facilities, so it is necessary to handle the problem by making bio-batteries from orange peel and tamarind. The purpose of this study is to know the influence of good electricity on variations of the combination of orange peel and tamarind. The novelty of this study is (1) the use of biomass combination of orange peel and tamarind as bio-battery electrolytes and (2) comparison of orange peel to tamarind. The method used in this study is by experimenting with a mixture of sweet orange peel and tamarind made into pasta and put in a used battery. The results showed that bio-batteries with a variation of 25% orange to tamarind had the highest voltage and the most powerful electric current. This happens because the ion content in the variation is not concentrated so it is easy to move widely. In conclusion, bio-batteries with a mixture of orange peel and acid are the best variation of 25% orange peel against tamarind. The study is expected to reduce the use of chemicals in batteries and reduce disposable battery waste.

This article aimed to analyze the relationship between civil government and military leader during the Wilopo Cabinet. The main issue was how did the soldiers’ attitude in the events of October 17, 1952, with the stance of the Anty-Parliament during the Wilopo Cabinet? The research method that used was the historical method which according to Helius Sjamsuddin, covering the collecting of the sources (heuristics), source criticism, and historiography. As for the results’ findings in this study is the intervention over the military internal’s matters and civil government which resulted in a worse relationship. Besides, the events of October 17, 1952, can be seen from different points of view, both the party pros and cons point of view by understanding the background of the occurrence of such events. Besides, reactions and responses after the events of October 17, caused friction in the internal military and civil government that could erode the country’sintegration. The soldiers’ attitude in the events put pressure on the civil government to give political policies that took a side but has no intention to take control of the civilian Government directly (The Pretorian of Moderators’ type).

This research was conducted to determine the effectiveness of the method of learning the electroflotation process with a variety of stainless steel and copper electrodes and the voltages and voltages used. The experiment was carried out by treating domestic wastewater with the electroflotation method at various voltages of 6; 9; 12; 15; and 18 volts and variations of electrodes A, B, and C. The elements of the dispersed substance in the water medium, the pH level, and temperature in the water sample are measured first, then measured again to find out how much influence electroflotation has in separating pollutants. The application of learning is done by providing pretest questions, learning videos, and posttests. The results showed that sample A was good because it had an average value in the decrease in TDS as well as the temperature of the solution. While the results of the implementation of demonstration videos are effective, the score is not significant because it is likely that students already understand the concept as well as network factors. This research is expected to provide solutions to the problem of domestic oil-tainted water and improve the understanding of vocational school students about the concept of electro flotation to clear water. Keywords: copper, electro flotation, stainless steel, teaching clears water

ABSTRAK Di zaman yang semakin modern perkembangan teknologi di indonesia kian hari kian bertambah. Terbukti dengan banyaknya pengguna gadget dengan berbagai merk dan tipe tersebar luar diseluruh wilayah indosesia. Dengan kata lain ini bisa di sebut merubah aktivitas bermain anak pada saat ini yang lebih sering bermain permainan modern yang identik dengan penggunaan teknologi yang membuat anak  lebih individual. Penggunanya tidak hanya orang dewasa saja akan tetapi anak usia dini pun ikut andil didalamnya, Penelitian ini menggunakan metode Deskriptif. Hasil kajian kami menunjukkan bahwa metode bermain dengan menggunakan media ludo king mampu memberikan pembelajaran untuk anak usia dini dalam aspek kemampuan sosial sejak dini. Dengan metode bermain ludo king akan melatih kemampuan sosial dan Emosi pada anak usia dini yang akan membentuk  kemampuan sosial  yang baik terhadap lingkungannya, maka dari itu sosial anak akan terlatih jika sudah dibiasakan pada saat usia dini. Anak anak usia dini  yang sering bermain ludo king dengan otomatis sosialnya akan terlihat karena permainan ludo king ini melatih anak untuk berinteraksi dengan teman mainnya.   Kata Kuci: Ludo, Kemampuan Sosial, Anak Usia Dini   ABSTRACT                In the increasingly modern era of technological developments in Indonesia increasingly increasing days. Proven by the many users of gadgets with various brands and types scattered outside the entire region of indosesia. In other words this can be called to change the activity of children playing at this time who more often play modern games that are identical with the use of technology that makes children more individual. Users are not only adults but also early childhood participate in it, This research uses Descriptive method. The results of our study indicate that the method of playing by using media ludo king able to provide learning for early childhood in the aspect of social skills from an early age. With the method of playing ludo king will train social skills and emotions in early childhood that will form a good social ability to the environment, therefore the child's social will be trained if it has been familiarized at an early age. Early young children who often play ludo king with automatic social will be seen because this game ludo king train children to interact with his playmates.   Keywords : Ludo, Social Ability, Early Childhood

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