Side 2 - hvad betyder dette

Horizonten er kanten af jorden. Hvis du står og kigger ud over havet, så er horizonten den linjen, hvor himmel og hav mødes.

Symmetri er når noget er ens på begge sider. F.eks oxlxo. Hvis du står på l gør det ingen forskel, om du går mod højre eller venstre, mønsteret er ens.

oka mange tak hva betyder så dette ??


In particular (drawing above), the angle between the Earth's axis and the Earth-Sun line changes throughout the year. Twice a year, at the spring and fall equinox (around March 21 and September 22--the exact date may vary a bit) the two directions are perpendicular.
Twice a year, the angle is as big as it can get, at the summer and winter solstices, when it reaches 23.5 degrees. In the summer solstice (around June 21) the north pole is inclined towards the Sun, in the winter solstice (around December 21) it faces away from it.

Let us look at the summer solstice first, with the Sun on the left.

Vinklen mellem jordens akse og jorden-solen linjen ændrer sig gennem året. To gange om året - ved forårs- og efterårsjævndøgn (ca. 21. marts og 22. september, den præcise dato ændrer sig en smule)er de to retninger lodrette.
To gange om året er vinklen så stor som den kan blive, ved sommersolhverv og vintersolhverv, hvor den når 23½ grader. Ved sommersolhverv (omkring 21. juni) hælder nordpolen mod solen, ved vintersolhverv (21. december) vender det væk fra den.
Lad os se på sommersolhverv først, med solen på venstre side.

og lige det sidste


The boundary AB between sunlight and shadow--between day and night--is always perpendicular to the Earth-Sun line, as it was in the example shown at the beginning.
But because of the tilted axis, as each point on Earth is carried on its daily trip around the rotating Earth, the part of the trip spent in daylight (unshaded part of the drawing) and in the shadow (shaded) are usually not equal. North of the equator, day is longer than night, and when we get close enough to the north pole, there is no night at all. The Sun is then always above the horizon and it just makes a 360-degree circuit around it. That part of Earth enjoys summer.

A mirror-image situation exists south of the equator. Nights are longer than days, and the further one gets from the equator, the larger is the imbalance--until one gets so close to the pole that the sun never rises. That is the famous polar night, with 24 hours of darkness each day. In that half of the Earth, it is winter time.

Half a year later, the Earth is on the other side of the Sun, that is, the Sun's position in the above drawing should be on the right, and the shaded part of the Earth should now be on the left (light and dark portions in the drawing switch places). The Earth's axis however has not moved, it is still pointed to the same patch of sky, near the star Polaris. Now the south pole is bathed in constant sunshine and the north one is dark. Summer and winter have switched hemispheres.

Haha Lemin en god måde at få folk til at lave ens lektier. I'll keep that in mind.

Du tager fejl "Fjolset" Det er ingen lektie!

Reglerne må være de samme omend det er lektier eller ej. Det dur ikke at folk sidder at oversætter ting, som nogle påstår er til fritidsbrug.

Så vil der pludselig være mange, som kan se sit snit til at lægge lektier ind og så kalde det fritidslæsning mv.

men det er det ikke det r noget som jeg fandt på nettet