The image at the top of the ball remains upright despite the ball rolling forward.
This experiment uses two test tubes to demonstrate the surprising effects of atmospheric pressure.
The rattleback is a rigid, cigar-shaped object cut in half along its longitudinal axis.
How can you knock a matchbox out from under a glass of water without spilling it?
This experiment shows you how to create a silver flower with electrolysis by depositing silver from a silver nitrate solution.
In this experiment, a simple pulley system is constructed using a spool, some string and plastic bottles.
This video uses a juice box to teach you how to calculate the volume and surface area of a rectangular cuboid.
Catalizatorii pot ușura sau sprijini desfășurarea unor reacții care altfel nu ar avea loc.
The dissolution process causes a drop in pressure, which draws water into the flask, creating a fountain-like effect.
A compound produced from calcium carbide and water, acetylene burns with a sooty flame.
When acetylene is combined with bleach, a vigorous addition reaction involving flames occurs.
Cea mai mare specie de viespe indigenă din Europa. Înțepătura sa puternic veninoasă face victime în principal printre alte artropode.
Simienii sunt vertebrate din ordinul primatelor, cunoscute în mod obișnuit ca maimuțe și antropoide.
Let's learn more about the fascinating history of computing, which has gone through an unprecedented rapid evolution.
Let's learn more about the fascinating history of computing, which has gone through an unprecedented rapid evolution.
Aceste flori galben-aurii, deși otrăvitoare, transformă pajiștile umede într-o mare galbenă.
Porcul mistreț, strămoșul porcului de casă, trăiește în desișurile regiunilor împădurite.
Un arbore străvechi care trăiește și astăzi, apărut în era paleozoică a istoriei Pământului.
Tectonica plăcilor este o teorie care studiază mișcarea plăcilor.
Examination of filamentous plant and fungus species with an optical microscope.
Slovenia is a former Yugoslav successor state inhabited by merely 2 million people. Despite its size, it offers a diverse range of landscapes and climates.
When the essential oil from the peel touches the candle flame, it burns and creates a ball of fire.
O specie interesantă de insectă acvatică care poate „patina” pe apă utilizând tensiunea de suprafață.