Dhansak prefer the use of pumpkin, squash or gourd. Dhansak Dhansak is a popular Indian dish, originating among the Parsi Zoroastrian community. It combines elements of Persian and Gujarati cuisine. Dhansak is made by cooking mutton or goat meat with a mixture of lentils and vegetables. This is served with caramelised brown rice, which is rice cooked in caramel water to give it a typical taste and colour. The dal cooked with mutton and vegetables served with brown rice, altogether is called dhansak. The technique of extending a relatively expensive ingredient (meat) by combining it with vegetables and/or lentils in the
Pulse tube refrigerator developed for cooling of astronomical detectors where liquid cryogens are typically used, such as the Atacama Cosmology Telescope or the Qubic experiment (an interferometer for cosmology studies). PTRs are used as precoolers of dilution refrigerators. Pulse tubes will be particularly useful in space-based telescopes such as the James Webb Space Telescope where it is not possible to replenish the cryogens as they are depleted. It has also been suggested that pulse tubes could be used to liquefy oxygen on Mars. Here the so-called Stirling-type single-orifice pulse-tube refrigerator will be treated operating with an ideal gas (helium) as the working fluid.