We’ve had a hard few years between the pandemic that won’t go away, a war in Europe threatening to pull the rest of the world into it, and compounding climate disasters that have claimed and changed the lives of people all over the world. At worst, things are just straight up a nightmarish hellscape for a lot of people. Things, at best, feel very dire right now. The Bulletin’s scientists do have a point with the Doomsday Clock. dissolved later that year and as close as 100 seconds to midnight in 2020 during the initial onslaught of the COVID-19 pandemic, runaway climate change disasters, and the end of a nuclear treaty between Russia and the U.S. Over the decades, the clock’s proximity to midnight-which is supposed to signify calamity for the human species-has fluctuated pretty wildly, moving as far as 17 minutes to midnight in 1991 after the Soviet Union signed an arms reduction treaty with the U.S. “It’s a number that’s arrived at by a group of people who are exploring each of the questions, then having a huge amount of discussion, and ultimately a convergence on a number. “It’s not scientific,” Lawrence Krauss, a physicist and chair of the Bulletin’s Board of Sponsors, told The New Republic in 2018. While there are a host of considerations taken into account including the opinions and analysis from a panel of Nobel laureates and scientists, it’s kind of a collective group guess at the end of the day. In other words, the Bulletin’s scientists are mostly using vibes to come up with their predictions. * without ((mins/60) 30) which cause these small marginal movement, the minute hand will move straight away from one point to another.Or, as co-founder and inaugural editor of the Bulletin Eugene Rabinowitch put it in 1967, “The Bulletin’s Clock is not a gauge to register the ups and downs of the international power struggle it is intended to reflect basic changes in the level of continuous danger in which mankind lives in the nuclear age, and will continue living, until society adjusts its basic attitudes and institutions.” Each small marginal movement of the hour hand is 0.5deg. a marginal movement can be seen from the hour hand after each minute count. 30 deg will be the maximum rotation movement from one hour to another. the maximum degree the minute hand can rotate is 30deg calculated from 360deg/12hours.Each MINUTE COUNT not second count will now cause a 30/60mins = 0.5deg rotation movement in the hour hand which is equivalent to 0.5 * 60 mins = 30 deg. without that, the minute hand moves straight from one point to another.Īdding ((mins/60)*30) also ensures marginal increase in the HOUR hand after each MINUTE count. When you take a careful look at the minute hand, you will notice a subtle and marginal rotation movement in the minute hand after EACH SECOND COUNT. Each second count will now cause a 6/60s = 0.1deg rotation movement in the minute hand which will be equivalent to 0.1 * 60s = 6deg after 60s count. the maximum degree the minute hand can change is 6deg calculated from 360deg/60mins. Without ((seconds/60) * 6) and ((mins/60)*30), a change in minute(ie 15min to 16min after 60s completion) and a change in hour(ie 3:00 to 4:00 - after a 60 minutes completion) will rotate their respective hand straight from one point to another and yes transition will make it smooth so that rotation movement won't be noticeable.Īdding ((seconds/60) * 6) ensures a marginal increase in the minute hand after each second count. Why is the educator adding + ((seconds/60)*6) and + ((mins/60)*30) to hourDegrees and minsDegrees? I understand everything except the statements assigned to hourDegrees and minsDegrees. The + 90 part in the setDate function is the offset - because we are making a JS clock, we transformed the arrows to be at 90 degree angle using CSS, so this is just fixing the offset. This is the code: Īnd the JS: const secondHand = document.querySelector('.second-hand') Ĭonst minsHand = document.querySelector('.min-hand') Ĭonst hourHand = document.querySelector('.hour-hand') Ĭonst secondsDegrees = ((seconds / 60) * 360) + 90 I am doing the course, and we have to do a JS clock with seconds, minutes and hours.
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