B202238

https://www.challenge-zero.jp/jp/casestudy/276      Do you know "artificial photosynthesis"?       "Photosynthesis" means a process to convert the energy of sunlight into chemical energy so that plants can make the most of the energy their activities and growth. The chemical energy is stored in the form of hydrocarbons, such as sugars(sucrose, starch, and so on), which are made from carbon dioxide(CO2) in the air and water by using sunlight energy. At the same time, oxygen is often released into the air as one of the by-products.      "Artificial photosynthesis" is, to put it simply, an attempt to reproduce plants' photosynthesis artificially. In other words, any experiments to capture and store the sunlight energy in a solar fuel can be regarded as artificial photosynthesis in a broad sense. Some scientists and engineers expect that, in the future, this technology can solve some global problems with which we are confronted. For example, this technolog

FROM: higedan.com      Today I will introduce my favorite artist, " Official HIGE Dandism" . The band is known as " HIGEDAN " for short.  I have been a big fan of them since I listened to " No Doubt " for the first time about three years ago. The representative songs of the band are probably " Pretender ", " I LOVE... ", " No Doubt ",  " Shukumei ", and so on... I'm sure you've heard some of their famous songs such as those described above before.       Now the coronavirus is going around the world, a lot of artists have canceled or put off the concerts. HIGEDAN is no exception. I definitely want to attend the HIGEDAN 's concert at least once in my lifetime. Their live performances are so lively, groovy, emotional, impressive, and never bore the audience.       My favorite song of theirs is " Stand By You ". Rhythmical claps and chorus, and the repeated phrase "stand by you" make this

     I'm from Tokushima and have lived in Tokushima for more than ten years. Therefore I am not so familiar with Hiroshima. Through my college life, I want to get to know more about Hiroshima. In this article, I will write about some famous souvenirs from Hiroshima, for you and myself. https://travel.rakuten.co.jp/mytrip/howto/hiroshima-souvenir/      The first souvenir is "Momiji Manju", a maple leaf-shaped steamed bun. It's no exaggeration to say that this is the most famous souvenir from Hiroshima. There are a lot of various flavors such as chocolate, cream, green tea flavor, and so on. Of the many kinds of flavors, the most popular is the sweet bean jam flavor. When I go to my hometown, I often take some Momiji Manju as souvenirs. https://travel.rakuten.co.jp/mytrip/howto/hiroshima-souvenir/      The second is "Kumano brushes". The brushed are for writing, makeup, and paint, and so on. Kumano brushes have accounted for about 80% of the total domestic pro

   Do you know about "caffeine", in detail?  It is well-known that caffeine has stimulant effects and improves concentration. In addition, coffee, tea, energy drinks, and so on contain relatively a lot of caffeine. I sometimes have a can of energy drink or some cups of coffee in order to keep myself awake, particularly when I have a lot of homework or I am in the middle of exams week. Now not only me but also many people, even students have energy drinks such as "M onster Energy ", and " Red Bull ".      As long as you take adequate amounts, it just improves the efficiency of your work. However, if you take excessive amounts of caffeine, you probably get dizzy, uneasy, irritated, a headache, and an irregular pulse. In the worst case, you may become a caffeine addict, or pass away.        In 2010, Health Canada(HC) recommended healthy adults to restrict the amount of caffeine intake to at most 400g a day. According to this recommendation, you can have about