Why the Sun gets higher in Summer than it does in Winter.

  Рет қаралды 25,620

LiacosEM

LiacosEM

Күн бұрын

Пікірлер: 47
@juglover3000
@juglover3000 2 жыл бұрын
My teacher did a bad job explaining this so I appreciate it- your easy to understand video helped me do my science homework at 2 In the morning. Thanks!
@LiacosEM
@LiacosEM 2 жыл бұрын
Well done, but I wouldn't recommend staying up till 2 to do your homework!! Good luck with the rest of the unit.
@elizabethschraderking8706
@elizabethschraderking8706 3 жыл бұрын
Another excellent video. Your demonstrations with shadows is exactly how I would want to do it... if I had the time, patience, and technical expertise to pull it off. Bravo!
@LiacosEM
@LiacosEM 3 жыл бұрын
Thanks.
@PerimeterPermaculture
@PerimeterPermaculture 2 жыл бұрын
Nicely done. Nice to hear a southern hemisphere take on things for a change.
@Pining_for_the_fjords
@Pining_for_the_fjords 3 жыл бұрын
There is a formula to calculate the sun's angle at midday at the summer solstice, winter solstice and equinoxes, at any given latitude. Where L = latitude: 90-L = sun's highest point at the equinoxes 90-L+23.5 = sun's highest point at the summer solstice 90-L-23.5 = sun's highest point at the winter solstice 90 because there are 90 degrees between the horizon and looking directly overhead, ie a right angle, and 23.5 because that's the earth's tilt. This is why the tropical regions are defined as within approximately 23.5 degrees from the equator, because 90-23.5+23.5 is obviously 90, meaning 23.5 is the latitude where the sun reaches directly overhead on the summer solstice, and anywhere between 23.5 degrees north and 23.5 degrees south the sun will rise directly overhead at least once a year. This is also why the polar regions are defined at approximately 66.5 degrees north or south of the equator, because 90-66.5-23.5=0, so at the arctic and antarctic circles the sun rises to 0 degrees, or directly on the horizon, on the winter solstice, and anywhere at a higher latitude will see polar night where the sun only reaches a negative altitude, or remains below the horizon, for at least one day of the year.
@LiacosEM
@LiacosEM 3 жыл бұрын
Great examples. The difference between the second two formulas will always be 47 degrees. 90 - L + 23.5 - (90 - L - 23.5) = 90 - L + 23.5 - 90 + L + 23.5 = 47
@r.a.6459
@r.a.6459 5 ай бұрын
I live at around 6° north latitude. On one part of the year the sun is at the south sky, another part at the north sky. Here where I live, on April 4th and September 8th every year the sun is directly overhead. If you put a metre ruler vertically on those days where I am, the length of the shadow casted by the ruler is... nil!!! This is the sun is at 90° altitude, and cot 90° = 0.
@joelwatson4867
@joelwatson4867 4 жыл бұрын
That's a great explanation, planning my new patio and garden, great to begin getting a better understanding of this science.
@LiacosEM
@LiacosEM 4 жыл бұрын
Thanks, Joel. I hope your project goes well. There's more information at www.liacoseducationalmedia.com/shedding-light-on-the-sun-and-earth-episode-3-following-the-sun. The other consideration is the prevailing wind direction. In Melbourne, the winds come most commonly from the west and the south west, so the rain can enter a space more easily that is exposed to those directions.
@joelwatson4867
@joelwatson4867 4 жыл бұрын
@@LiacosEM Definitely worth considering, thanks for the tip. Up in Brissie, and It's mainly from the south east winds on my block, so will consider this.
@bigyanbhattachan9582
@bigyanbhattachan9582 Жыл бұрын
Absolutely Loved the video content! great job guys!
@thedumbchannel7571
@thedumbchannel7571 3 жыл бұрын
I live around 53 degrees north and the sun gets to 60 degrees above the horizon in summer and 13 degrees above the horizon in winter that’s at solar noon
@projjalghosh9251
@projjalghosh9251 3 жыл бұрын
I am located 22.5 degrees north (22.5 degrees N latitude) of the Equator. At Solar Noon, here the Sun makes an angle of 44 degrees above the horizon on Winter Solstice and 89 degrees on Summer Solstice.
@rafaelsevero5891
@rafaelsevero5891 3 жыл бұрын
hi, here in Brazil it's the same thing as Australia, the midday sun in December, it's almost over your head, and it makes 30 cm of shade in winter it makes more than 2 m of shade,and the sun is always pointed to the north,Live in the Localization 30 degrees south
@LiacosEM
@LiacosEM 3 жыл бұрын
Melbourne is 38 degrees south, so our shadows are always a little longer here than they they are where you live in Brazil. In Rio, the sun is pretty much directly overhead at around the time of the December solstice, since Rio is more or less on the Tropic of Capricorn.
@projjalghosh9251
@projjalghosh9251 3 жыл бұрын
@@LiacosEM To be precise, it's 37.81 degrees South.
@bedtimereads9855
@bedtimereads9855 3 жыл бұрын
Thank you! Very helpful and effective demonstration and explanation.
@techtinkerin
@techtinkerin 2 жыл бұрын
Thanks, very helpful. I never really noticed how much lower the sun is in winter until I noticed my solar panels in shade!! 😄👍😎❤️
@carljohnsoncj6896
@carljohnsoncj6896 4 жыл бұрын
In the uk in 21st June the shadow is around 45cm with a 1 meter stick. However in 21st December it’s like 1 meter stick shodow is like 4 meters long
@LiacosEM
@LiacosEM 4 жыл бұрын
Wow. The UK is a lot further north of the equator than Melbourne is south of the equator.
@BrandonshanesProductions
@BrandonshanesProductions 3 жыл бұрын
That should give the sun an angle of 15° in Winter and 65° in Summer. In New York the sun angle is usually 24° in winter and in Los Angeles its 32° in winter
@carljohnsoncj6896
@carljohnsoncj6896 3 жыл бұрын
@@BrandonshanesProductions winter sucks...
@LiacosEM
@LiacosEM 3 жыл бұрын
@@BrandonshanesProductions The difference in the elevation of the sun at solar noon between the two solstices should always be about 47 degrees (which is 2 times 23 1/2 degrees, the tilt of the Earth).
@LiacosEM
@LiacosEM 3 жыл бұрын
@@carljohnsoncj6896 It does. It's not just the cold, it's the short days!
@HSDesign
@HSDesign 3 жыл бұрын
Amazing sir
@b_bacon4534
@b_bacon4534 2 жыл бұрын
Solar moon for me is at 11:53Am and in summer the sun climbs to a height of 86 degrees in summer and a height of 39 degrees in winter
@noahpalmer7191
@noahpalmer7191 Ай бұрын
does the sun move faster in the winter and slower in the summer?? i think it does
@kaizarkthetitan0
@kaizarkthetitan0 4 жыл бұрын
I feel like I wouldn’t survive living in the Southern Hemisphere knowing that the sun faces north in mid day Yeah no thanks
@LiacosEM
@LiacosEM 4 жыл бұрын
I went on a holiday to Europe and whenever I pulled a map out, I had to take a moment to get used to the fact that the map was facing north but the sun and the equator were behind me!!
@kaizarkthetitan0
@kaizarkthetitan0 4 жыл бұрын
@@LiacosEM you live in the Southern Hemisphere?
@LiacosEM
@LiacosEM 4 жыл бұрын
I do! In the beautiful city of Melbourne.
@kaizarkthetitan0
@kaizarkthetitan0 3 жыл бұрын
@@LiacosEM noice
@projjalghosh9251
@projjalghosh9251 3 жыл бұрын
I am located 22.5 degrees north (22.5 degrees N latitude) of the Equator. At Solar Noon, here the Sun makes an angle of 44 degrees above the horizon on Winter Solstice and 89 degrees on Summer Solstice.
@LiacosEM
@LiacosEM 3 жыл бұрын
So the sun must pass directly over head for you about a week before and about a week after the summer solstice. At solar noon on the day of the summer solstice, your (very short) shadow will be pointing southwards, unlike for most of the rest of the year.
@projjalghosh9251
@projjalghosh9251 3 жыл бұрын
@@LiacosEM Yeah! The fact is that the Sun is being 90° above the horizon starting today, and will continue till 10th June. Again this will be repeated from around 30th June for another 10 days.
@projjalghosh9251
@projjalghosh9251 3 жыл бұрын
@@LiacosEM We had our solar noon today at 11:34 AM. Now it's 1:00 PM, but still the angle is quite sharp.
@projjalghosh9251
@projjalghosh9251 3 жыл бұрын
@@LiacosEM Yup, the shadow length would be insignificant.
@samBrightuel
@samBrightuel 3 жыл бұрын
I always wonder why the sun never goes completely overhead
@LiacosEM
@LiacosEM 3 жыл бұрын
It does twice a year if you're in the tropics!
@katonalothbrok5019
@katonalothbrok5019 3 жыл бұрын
The sun is rotating around the earth in the winter time the sun makes big circles around the earth in the summertime it makes small circles around the earth it’s just as it seems!
@LiacosEM
@LiacosEM 3 жыл бұрын
Yes, the size of the circle above the horizon changes!
@throwawayavclubber7269
@throwawayavclubber7269 Жыл бұрын
No.
@JiroApiilogOfficial
@JiroApiilogOfficial 2 жыл бұрын
June winter dec summer wrong
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