These tools, revolutionary even in their simplicity, are still in use today.
In a passive house a comfortable inner temperature can be ensured without the use of traditional heating and cooling systems.
The Japanese Mitsubishi A6M, commonly known as 'Zero' to the Allies, was a legendary aircraft of the Second World War.
جاروبرقی یک خلاء جزئی ایجاد می کند و به کمک هوای پرفشار وارد شده، گردوغبار را به داخل خود می کشد۔
A type of rotary engine of high efficiency
This animation demonstrates how mobile phones work.
این انیمیشن طرز کار یک تلویزیون لامپی را نشان می دهد۔
Geckos can walk on walls or even ceilings. The 3D scene explains this ability.
This animation presents some interesting facts in social geography.
A blood clot that forms in the deep veins of the lower limbs can cause a fatal pulmonary embolism if they enter the lungs.
Larvae of this type of mayflies spend the first three years of their lives in water, their adult lives last for only one day which they use for mating.
The naval battle fought by the British Navy against the German Navy was the largest sea battle in World War I.
بزرگترین پستاندار زمین که در خشکی زندگی میکند۔
Radial engines are used primarily in aeroplanes and helicopters.
The Hypothalamic-pituitary axis is the regulating centre of our endocrine system.
A geisha is a traditional Japanese entertainer whose skills include performing classical music and dance.
Tower cranes are machines used for lifting loads weighing up to several tonnes.
Remarkable civil engineering works to continue the Netherland's centuries-long fight against the sea.
A type of prehistoric reptile having bony plates on its back, which aided thermoregulation.
This animation demonstrates the structure and operation of different types of optical disc drives.