PETROL ENGINE: 4 STROKE INTERNAL COMBUSTION ENGINE1970-01-01T00:00:00+00:00Highly simplified 4-stroke petrol engine cycling through the intake, compression, power and exhaust strokes. These engines use controlled explosions (combustions) of petrol (gasoline) and air mixtures to rotate wheels. 1. INTAKE STROKE: piston move...PT16S//d3e1m60ptf1oym.cloudfront.net/4615d0f7-1106-4ab1-b296-287152b52a8a/PETROL-ENGINE-animation-FHD-Russell-Kightley_xlarge.jpghttps://www.scientific.pictures/-/galleries/animations/-/medias/4615d0f7-1106-4ab1-b296-287152b52a8a/pricehttps://www.scientific.pictures/-/galleries/animations/-/medias/4615d0f7-1106-4ab1-b296-287152b52a8a/price
Pythagoras' Theorem animation showing the squares of the sides of a right angled triangle. Pythagoras' Theorem relates the lengths of the sides of a right-angled triangle and says that the square of the length of the hypotenuse (the side opposite the right angle, green) equals the sum of the squares of the other two sides (pale blue and pink). This animation shows the hypotenuse rotating about its left point and so creating a smoothly changing right-angled triangle. The other two sides are extended to form their squares. In this way, the areas change dynamically to give a feel of what is happening. The squares of each side are divided into units by a grid.
Animation ID: PYTHAGORAS_LINED_SQUARES_UHD_clear
copyright Russell Kightley
Animation resolution: 3840x2160 pixels @ 30.0 fps, ~39.1 Mbits/s
Pythagoras' Theorem2019-04-10T07:03:52ZPythagoras' Theorem animation showing the squares of the sides of a right angled triangle. Pythagoras' Theorem relates the lengths of the sides of a right-angled triangle and says that the square of the length of the hypotenuse (the side opposite the r...PT36S//d38zjy0x98992m.cloudfront.net/b9e89211-44a3-4863-a819-9397f354a362/PYTHAGORAS_LINED_SQUARES_UHD_clear_xlarge.jpghttps://www.scientific.pictures/-/galleries/animations/-/medias/b9e89211-44a3-4863-a819-9397f354a362/pricehttps://www.scientific.pictures/-/galleries/animations/-/medias/b9e89211-44a3-4863-a819-9397f354a362/price
Fertilisation of a human egg1970-01-01T00:00:00+00:00Fertilisation of a human egg. Only one sperm makes it. Once that sperm has penetrated the egg, various changes prevent other sperm from entering. Nuclear material from sperm and egg mingle and the cell divides.PT25S//d3e1m60ptf1oym.cloudfront.net/48603392-035f-460d-aa7e-cb89d1600c1f/Fertilization_63_1920_xlarge.jpghttps://www.scientific.pictures/-/galleries/animations/-/medias/48603392-035f-460d-aa7e-cb89d1600c1f/pricehttps://www.scientific.pictures/-/galleries/animations/-/medias/48603392-035f-460d-aa7e-cb89d1600c1f/price