De winterse kou van de afgelopen tijd zorgde niet alleen voor sneeuwpret en bijzondere momenten, maar ook voor problemen. Zo is het voor Rotterdamse dakloze personen overleven. âNiemand kijkt naar je om.â
Nog nooit in de clubgeschiedenis kwam Feyenoord zo vroeg op een 3-0 achterstand. Het mocht van geluk spreken dat PSV niet doordrukte, want anders was de uitslag nog veel hoger opgelopen. In de podcast Feyenoord: De Verlenging werd uitgebreid stilgestaan bij het steeds harder falende Feyenoord.
Nog nooit in de clubgeschiedenis kwam Feyenoord zo vroeg op een 3-0 achterstand. Het mocht van geluk spreken dat PSV niet doordrukte, want anders was de uitslag nog veel hoger opgelopen. In de podcast Feyenoord: De Verlenging werd uitgebreid stilgestaan bij het steeds harder falende Feyenoord.
Een man heeft zondagmiddag gedreigd om brand te stichten op de Coolsingel in Rotterdam. Hij riep ook dat er explosieven in zijn brommobiel zouden zitten. Hij is aangehouden.
WASHINGTON (ANP/RTR) - De hoogste generaals van de Verenigde Staten en Israël hebben vrijdag overleg gevoerd in het Pentagon te midden van de oplopende spanningen met Iran. Dat zeiden twee Amerikaanse functionarissen tegen persbureau Reuters.
De functionarissen gaven geen details over de besprekingen achter gesloten deuren tussen de Amerikaanse generaal Dan Caine, voorzitter van de Joint Chiefs of Staff, en Eyal Zamir, de stafchef van de Israëlische strijdkrachten. De bijeenkomst was eerder nog niet bekendgemaakt.
De VS hebben hun marineaanwezigheid en luchtverdediging in het Midden-Oosten opgevoerd. President Donald Trump heeft Iran herhaaldelijk gedreigd met militair geweld, naar eigen zeggen om onderhandelingen met het land te openen over zijn nucleaire programma en het land te doen stoppen met het doden van demonstranten. De Iraanse leiders waarschuwden zondag voor een regionaal conflict als de VS Iran zouden aanvallen.
Zaterdag zei de hoogste veiligheidsfunctionaris van Iran dat Teheran vooruitgang boekt richting onderhandelingen met Washington om een militaire confrontatie te voorkomen.
@djoerd Ik weet dat Elk bestaat: https://docs.elk.zone/ en dat mijn tijdlijn daar positief over was toen het uitkwam.
Researchers at the University of Pennsylvania and University of Michigan "have created the world's smallest fully programmable, autonomous robots," according to a recent announcement.
The announcement calls them "microscopic swimming machines that can independently sense and respond to their surroundings, operate for months and cost just a penny each."
Barely visible to the naked eye, each robot measures about 200 by 300 by 50 micrometers, smaller than a grain of salt. Operating at the scale of many biological microorganisms, the robots could advance medicine by monitoring the health of individual cells and manufacturing by helping construct microscale devices. Powered by light, the robots carry microscopic computers and can be programmed to move in complex patterns, sense local temperatures and adjust their paths accordingly... "We've made autonomous robots 10,000 times smaller," says Marc Miskin, Assistant Professor in Electrical and Systems Engineering at Penn Engineering and the papers' senior author. "That opens up an entirely new scale for programmable robots."
The announcement describes them as "the first truly autonomous, programmable robots at this scale" (as described in two recent academic articles). The team had to design a new propulsion system that utilized the unique locomotion physics in the microscopic realm, according to the university's announcement. So the robots "generate an electrical field that nudges ions in the surrounding solution."
Those ions, in turn, push on nearby water molecules, animating the water around the robot's body. "It's as if the robot is in a moving river," says Miskin, "but the robot is also causing the river to move." The robots can adjust the electrical field that causes the effect, allowing them to move in complex patterns and even travel in coordinated groups, much like a school of fish, at speeds of up to one body length per second...
To be truly autonomous, a robot needs a computer to make decisions, electronics to sense its surroundings and control its propulsion, and tiny solar panels to power everything, and all that needs to fit on a chip that is a fraction of a millimeter in size. This is where David Blaauw's team at the University of Michigan came into action... The robots are programmed by pulses of light that also power them. Each robot has a unique address that allows the researchers to load different programs on each robot. "This opens up a host of possibilities," adds Blaauw, "with each robot potentially performing a different role in a larger, joint task."
Thanks to long-time Slashdot reader fahrbot-bot for sharing the news.
The announcement calls them "microscopic swimming machines that can independently sense and respond to their surroundings, operate for months and cost just a penny each."
Barely visible to the naked eye, each robot measures about 200 by 300 by 50 micrometers, smaller than a grain of salt. Operating at the scale of many biological microorganisms, the robots could advance medicine by monitoring the health of individual cells and manufacturing by helping construct microscale devices. Powered by light, the robots carry microscopic computers and can be programmed to move in complex patterns, sense local temperatures and adjust their paths accordingly... "We've made autonomous robots 10,000 times smaller," says Marc Miskin, Assistant Professor in Electrical and Systems Engineering at Penn Engineering and the papers' senior author. "That opens up an entirely new scale for programmable robots."
The announcement describes them as "the first truly autonomous, programmable robots at this scale" (as described in two recent academic articles). The team had to design a new propulsion system that utilized the unique locomotion physics in the microscopic realm, according to the university's announcement. So the robots "generate an electrical field that nudges ions in the surrounding solution."
Those ions, in turn, push on nearby water molecules, animating the water around the robot's body. "It's as if the robot is in a moving river," says Miskin, "but the robot is also causing the river to move." The robots can adjust the electrical field that causes the effect, allowing them to move in complex patterns and even travel in coordinated groups, much like a school of fish, at speeds of up to one body length per second...
To be truly autonomous, a robot needs a computer to make decisions, electronics to sense its surroundings and control its propulsion, and tiny solar panels to power everything, and all that needs to fit on a chip that is a fraction of a millimeter in size. This is where David Blaauw's team at the University of Michigan came into action... The robots are programmed by pulses of light that also power them. Each robot has a unique address that allows the researchers to load different programs on each robot. "This opens up a host of possibilities," adds Blaauw, "with each robot potentially performing a different role in a larger, joint task."
Thanks to long-time Slashdot reader fahrbot-bot for sharing the news.
Read more of this story at Slashdot.