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A lecke a nagy Fermat-sejtés lényegét, történeti hátterét és az n = 3 esetre vonatkozó indirekt bizonyítás alapgondolatát foglalja össze.
A tananyag animációk segítségével szemlélteti a másodfokú egyenletek geometriai megoldásait, a „görög” gondolkodásmódot követve a matematika tanításában.
Руководство пользователя к серии цифровых уроков "Учимся дома".
Экономить энергию необходимо каждому из нас, чтобы потребление энергии не превышало ресурсы Земли.
Галоген бром соединяется с металлами с образованием бромидов.
I bet you are not strong enough to blow the table tennis ball out of the funnel.
I bet I can inflate a balloon inside a plastic bottle.
I bet I can look into a blown-up balloon without deflating it.
I bet I can shrink an inflated balloon without letting air escape from it or even touching it.
I bet I can break a wooden skewer with one chop, even though only a few sheets of paper covers the part that is on the table.
I bet if I cover a water-filled glass with a sheet of paper and I turn it upside down, water will not spill out.
I bet I can pierce an inflated balloon without bursting it by pushing a skewer right through it.
I bet I can send a bag airborne without throwing it upward.
I bet I can make a gun using a plastic tube and raw food materials.
I bet I can crush a plastic bottle with the help of a few litres of water.
I bet I can suck up your drink from your glass with this plastic bottle without squeezing it.
I bet I can move the coin covering the mouth of the bottle using only the warmth of my hands.
